Datasets:
christopher
/
oeis

Dataset card Data Studio Files
xet
Community
2
sequence_id
stringlengths
7
7
sequence_name
stringlengths
4
573
sequence
listlengths
1
348
keywords
listlengths
1
8
score
int64
1
2.35k
offset_a
int64
-14,827
666,262,453B
offset_b
int64
0
635M
⌀
cross_references
listlengths
1
128
⌀
former_ids
listlengths
1
3
⌀
author
stringlengths
7
231
⌀
timestamp
timestamp[us]date
1999-12-11 03:00:00
2025-07-19 00:40:46
filename
stringlengths
29
29
hash
stringlengths
32
32
A014901
a(1)=1, a(n) = 18*a(n-1) + n.
[ "1", "20", "363", "6538", "117689", "2118408", "38131351", "686364326", "12354557877", "222382041796", "4002876752339", "72051781542114", "1296932067758065", "23344777219645184", "420205989953613327", "7563707819165039902", "136146740744970718253", "2450641333409472928572", "44111544001370512714315" ]
[ "nonn", "easy" ]
38
1
2
[ "A014901", "A014935", "A126885" ]
null
N. J. A. Sloane, Olivier Gérard
2025-03-31T15:37:54
oeisdata/seq/A014/A014901.seq
bdee51854ad5b8e9762d27d72abd4b52
A014902
Inverse of 893rd cyclotomic polynomial.
[ "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
16
0
1
null
null
Simon Plouffe
2020-11-29T16:08:20
oeisdata/seq/A014/A014902.seq
6effc5c25fc0588725a8385a2919af2f
A014903
a(1)=1, a(n) = 19*a(n-1) + n.
[ "1", "21", "402", "7642", "145203", "2758863", "52418404", "995949684", "18923044005", "359537836105", "6831218886006", "129793158834126", "2466070017848407", "46855330339119747", "890251276443275208", "16914774252422228968", "321380710796022350409", "6106233505124424657789", "116018436597364068498010" ]
[ "nonn", "easy" ]
33
1
2
[ "A014903", "A126885" ]
null
N. J. A. Sloane, Olivier Gérard
2025-03-31T15:37:50
oeisdata/seq/A014/A014903.seq
d6b952c8e81d03753e87f04e8e0a9a16
A014904
a(1)=1, a(n) = 20*a(n-1) + n.
[ "1", "22", "443", "8864", "177285", "3545706", "70914127", "1418282548", "28365650969", "567313019390", "11346260387811", "226925207756232", "4538504155124653", "90770083102493074", "1815401662049861495", "36308033240997229916", "726160664819944598337", "14523213296398891966758", "290464265927977839335179" ]
[ "nonn", "easy" ]
40
1
2
[ "A014904", "A126885" ]
null
N. J. A. Sloane, Olivier Gérard
2025-03-31T16:58:29
oeisdata/seq/A014/A014904.seq
c245798f6f64927ab25bc116030055fe
A014905
a(1)=1, a(n) = 21*a(n-1) + n.
[ "1", "23", "486", "10210", "214415", "4502721", "94557148", "1985700116", "41699702445", "875693751355", "18389568778466", "386180944347798", "8109799831303771", "170305796457379205", "3576421725604963320", "75104856237704229736", "1577201980991788824473", "33121241600827565313951", "695546073617378871592990" ]
[ "nonn", "easy" ]
33
1
2
[ "A014905", "A126885" ]
null
N. J. A. Sloane, Olivier Gérard
2025-03-31T15:37:46
oeisdata/seq/A014/A014905.seq
9932db8622d8575c387688f39a3baffb
A014906
Inverse of 897th cyclotomic polynomial.
[ "1", "-1", "0", "1", "-1", "0", "1", "-1", "0", "1", "-1", "0", "1", "0", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "1", "-1", "0", "1", "-1", "0", "1", "-1", "0", "1", "0", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "1", "-1", "0", "1", "-1", "0", "1", "-1", "0", "1", "0", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
11
0
1
null
null
Simon Plouffe
2017-04-06T15:08:22
oeisdata/seq/A014/A014906.seq
99b6542e023e207c77732a1feef553bf
A014907
a(1)=1, a(n) = 22*a(n-1) + n.
[ "1", "24", "531", "11686", "257097", "5656140", "124435087", "2737571922", "60226582293", "1324984810456", "29149665830043", "641292648260958", "14108438261741089", "310385641758303972", "6828484118682687399", "150226650611019122794", "3304986313442420701485", "72709698895733255432688", "1599613375706131619519155" ]
[ "nonn", "easy" ]
36
1
2
[ "A014907", "A126885" ]
null
N. J. A. Sloane, Olivier Gérard
2025-03-31T14:44:06
oeisdata/seq/A014/A014907.seq
63aa9cb35e452fee61d096026db5c0b5
A014908
Inverse of 899th cyclotomic polynomial.
[ "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "0", "0", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
11
0
1
null
null
Simon Plouffe
2017-04-06T15:10:46
oeisdata/seq/A014/A014908.seq
333454c7512ef56ff11d175e170020a1
A014909
a(1)=1, a(n) = 23*a(n-1) + n.
[ "1", "25", "578", "13298", "305859", "7034763", "161799556", "3721389796", "85591965317", "1968615202301", "45278149652934", "1041397442017494", "23952141166402375", "550899246827254639", "12670682677026856712", "291425701571617704392", "6702791136147207201033", "154164196131385765623777", "3545776511021872609346890" ]
[ "nonn", "easy" ]
41
1
2
[ "A014909", "A126885" ]
null
N. J. A. Sloane, Olivier Gérard
2025-03-31T12:40:56
oeisdata/seq/A014/A014909.seq
390ed5bd414ed98e77d336afeb930341
A014910
Inverse of 901st cyclotomic polynomial.
[ "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
17
0
1
null
null
Simon Plouffe
2019-03-30T15:54:44
oeisdata/seq/A014/A014910.seq
492bce7461d95d19591b83502dc6a91f
A014911
Inverse of 902nd cyclotomic polynomial.
[ "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
16
0
1
null
null
Simon Plouffe
2019-09-16T17:19:14
oeisdata/seq/A014/A014911.seq
93689be2652b1c7c04d11e910d3e3faf
A014912
Inverse of 903rd cyclotomic polynomial.
[ "1", "-1", "0", "1", "-1", "0", "1", "0", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "0", "1", "-1", "0", "1", "0", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
14
0
1
null
null
Simon Plouffe
2017-04-07T10:10:52
oeisdata/seq/A014/A014912.seq
82cef28f66751be2eb7094adf9e0d4e7
A014913
a(1)=1, a(n) = 24*a(n-1) + n.
[ "1", "26", "627", "15052", "361253", "8670078", "208081879", "4993965104", "119855162505", "2876523900130", "69036573603131", "1656877766475156", "39765066395403757", "954361593489690182", "22904678243752564383", "549712277850061545208", "13193094668401477085009", "316634272041635450040234" ]
[ "nonn", "easy" ]
40
1
2
[ "A014913", "A126885" ]
null
N. J. A. Sloane, Olivier Gérard
2025-06-30T16:35:37
oeisdata/seq/A014/A014913.seq
6e09684d76275aa743c1394aff8a2670
A014914
a(1)=1, a(n) = 25*a(n-1) + n.
[ "1", "27", "678", "16954", "423855", "10596381", "264909532", "6622738308", "165568457709", "4139211442735", "103480286068386", "2587007151709662", "64675178792741563", "1616879469818539089", "40421986745463477240", "1010549668636586931016", "25263741715914673275417", "631593542897866831885443" ]
[ "nonn", "easy" ]
39
1
2
[ "A014914", "A126885" ]
null
N. J. A. Sloane, Olivier Gérard
2025-03-31T12:47:00
oeisdata/seq/A014/A014914.seq
55ef9b712049ed8eff248440f6ee3b4a
A014915
a(1)=1, a(n) = n*3^(n-1) + a(n-1).
[ "1", "7", "34", "142", "547", "2005", "7108", "24604", "83653", "280483", "930022", "3055786", "9964519", "32285041", "104029576", "333612088", "1065406345", "3389929279", "10750918570", "33996147910", "107218620331", "337346390797", "1059110761804", "3318547053652", "10379285465677", "32408789311195", "101039166676078" ]
[ "nonn", "easy" ]
49
1
2
[ "A014915", "A027261", "A027471", "A059045", "A064017", "A079272" ]
null
Olivier Gérard
2025-05-29T00:53:31
oeisdata/seq/A014/A014915.seq
e44c49d94b3a4311ca456de5674498a5
A014916
a(1)=1, a(n) = n*4^(n-1) + a(n-1).
[ "1", "9", "57", "313", "1593", "7737", "36409", "167481", "757305", "3378745", "14913081", "65244729", "283348537", "1222872633", "5249404473", "22429273657", "95443717689", "404681363001", "1710351420985", "7207909559865", "30297653743161", "127054676987449", "531674956009017", "2220524816272953", "9257399234039353" ]
[ "nonn", "easy" ]
40
1
2
null
null
Olivier Gérard
2025-01-31T14:56:26
oeisdata/seq/A014/A014916.seq
c0eff3ef4f15565b6e95b34a0289a2ac
A014917
a(1)=1, a(n) = n*5^(n-1) + a(n-1).
[ "1", "11", "86", "586", "3711", "22461", "131836", "756836", "4272461", "23803711", "131225586", "717163086", "3890991211", "20980834961", "112533569336", "600814819336", "3194808959961", "16927719116211", "89406967163086", "470876693725586", "2473592758178711", "12964010238647461", "67800283432006836", "353902578353881836" ]
[ "nonn", "easy" ]
60
1
2
[ "A000351", "A003463", "A014915", "A014916", "A014917", "A014918", "A014920", "A014921", "A014923" ]
null
Olivier Gérard
2025-05-24T10:34:13
oeisdata/seq/A014/A014917.seq
521f41faba0c8c5e6ebacb624dd0c385
A014918
a(1)=1, a(n) = n*6^(n-1) + a(n-1).
[ "1", "13", "121", "985", "7465", "54121", "380713", "2620201", "17736745", "118513705", "783641641", "5137206313", "33435376681", "216285092905", "1391747554345", "8914707307561", "56873575734313", "361553445739561", "2291192622439465", "14478387422649385", "91257714663971881", "573870628752284713", "3601169817124428841" ]
[ "nonn", "easy" ]
29
1
2
null
null
Olivier Gérard
2025-06-01T17:54:05
oeisdata/seq/A014/A014918.seq
738517993e05d2e7c10d3e4b73a922e5
A014919
Inverse of 910th cyclotomic polynomial.
[ "1", "1", "0", "0", "0", "-1", "-1", "-1", "-1", "0", "1", "1", "1", "0", "0", "0", "-1", "-1", "0", "0", "1", "1", "0", "0", "0", "-1", "0", "0", "0", "1", "1", "0", "0", "-1", "-1", "0", "0", "0", "1", "0", "0", "0", "-1", "-1", "0", "0", "1", "1", "0", "0", "0", "-1", "0", "0", "0", "1", "1", "0", "0", "-1", "-1", "0", "0", "0", "1", "1", "1", "0", "-1", "-1", "-1", "-1", "0", "0", "0", "1", "1", "0", "0", "0", "0" ]
[ "sign" ]
11
0
1
null
null
Simon Plouffe
2017-04-07T10:19:39
oeisdata/seq/A014/A014919.seq
9014c7b1180529e7c64dc8626a73261b
A014920
a(1)=1, a(n) = n*7^(n-1) + a(n-1).
[ "1", "15", "162", "1534", "13539", "114381", "937924", "7526268", "59409477", "462945547", "3570173286", "27298094202", "207234827815", "1563680973513", "11737027066248", "87698011225336", "652657830908553", "4840007082678279", "35779865442976810", "263757769150439670", "1939395361400291691", "14227404371232539845" ]
[ "nonn", "easy" ]
30
1
2
null
null
Olivier Gérard
2025-05-16T07:19:09
oeisdata/seq/A014/A014920.seq
910f5623c4f99ecb7c7f3eca01291e29
A014921
a(1)=1, a(n) = n*8^(n-1) + a(n-1).
[ "1", "17", "209", "2257", "22737", "219345", "2054353", "18831569", "169826513", "1512003793", "13323163857", "116402378961", "1009755576529", "8706336970961", "74677034637521", "637626988058833", "5422701592139985", "45955098238474449" ]
[ "nonn", "easy" ]
39
1
2
null
null
Olivier Gérard
2024-02-19T01:53:37
oeisdata/seq/A014/A014921.seq
e2ba75536902438020fa23a4b45a77b4
A014922
Inverse of 913th cyclotomic polynomial.
[ "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "-1" ]
[ "sign" ]
16
0
1
null
null
Simon Plouffe
2024-01-12T07:41:04
oeisdata/seq/A014/A014922.seq
e9592031cc044e78222cf056631ba4cd
A014923
a(1) = 1, a(n) = n*9^(n-1) + a(n-1).
[ "1", "19", "262", "3178", "35983", "390277", "4110364", "42374116", "429794605", "4303999495", "42658627906", "419231343214", "4090815317467", "39676936914073", "382828823738488", "3677086937252872", "35178430147734169", "335367700741732411", "3187165771384715710", "30204200124844557490", "285515174765040062311" ]
[ "nonn", "easy" ]
21
1
2
null
null
Olivier Gérard
2025-05-16T07:19:04
oeisdata/seq/A014/A014923.seq
92a5486c47f3d85bda15a72ed835b444
A014924
Inverse of 915th cyclotomic polynomial.
[ "1", "-1", "0", "1", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "0", "1", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
13
0
1
null
null
Simon Plouffe
2017-04-07T10:21:03
oeisdata/seq/A014/A014924.seq
d4e165e4fc0c6a9f1f283711fdad914c
A014925
Number of zeros in numbers 1 to 111...1 (n+1 digits).
[ "1", "21", "321", "4321", "54321", "654321", "7654321", "87654321", "987654321", "10987654321", "120987654321", "1320987654321", "14320987654321", "154320987654321", "1654320987654321", "17654320987654321", "187654320987654321", "1987654320987654321", "20987654320987654321", "220987654320987654321" ]
[ "nonn", "easy", "base" ]
37
1
2
[ "A014925", "A033713" ]
null
Olivier Gérard
2025-05-29T17:31:32
oeisdata/seq/A014/A014925.seq
8190fa058332ae3647086e42b95f52ce
A014926
a(1)=1, a(n) = n*11^(n-1) + a(n-1).
[ "1", "23", "386", "5710", "78915", "1045221", "13446148", "169343516", "2098573445", "25678050355", "310989720966", "3734729768298", "44534298665671", "527852268680705", "6224099772429320", "73060070483079736", "854205478163806473", "9952251991151094351", "115590680947503492490", "1338772489915794418310" ]
[ "nonn", "easy" ]
21
1
2
null
null
Olivier Gérard
2025-05-15T11:26:13
oeisdata/seq/A014/A014926.seq
0896440b8e0501dc9c86ed0c0619685b
A014927
a(1)=1, a(n) = n*12^(n-1) + a(n-1).
[ "1", "25", "457", "7369", "111049", "1604041", "22505929", "309160393", "4178995657", "55776799177", "736867805641", "9652968253897", "125562274081225", "1623467149388233", "20882244117621193", "267394589311003081", "3410426990526622153", "43345426911854488009", "549188759248674122185", "6938788746661132659145" ]
[ "nonn", "easy" ]
21
1
2
null
null
Olivier Gérard
2025-05-15T11:26:17
oeisdata/seq/A014/A014927.seq
3ff8abdf432f907f12ad2bca433327e9
A014928
a(1)=1, a(n) = n*13^(n-1) + a(n-1).
[ "1", "27", "534", "9322", "152127", "2379885", "36167548", "538155684", "7879732173", "113924725903", "1630368136242", "23136292864686", "326011399456939", "4566262891748481", "63626908677237816", "882601196902689928", "12194683553016747225", "167902170101880830019", "2304554902189071299470" ]
[ "nonn", "easy" ]
21
1
2
null
null
Olivier Gérard
2025-05-18T07:56:39
oeisdata/seq/A014/A014928.seq
b03f406945032512f38a83ac59ee81c8
A014929
a(1)=1, a(n) = n*14^(n-1) + a(n-1).
[ "1", "29", "617", "11593", "203673", "3430617", "56137369", "899445401", "14181546905", "220792014745", "3402593219481", "51997375255449", "789018236134297", "11901025061692313", "178581127445062553", "2667670656370058137", "39692877399129367449", "588537118527090893721", "8699235348529189004185" ]
[ "nonn", "easy" ]
23
1
2
null
null
Olivier Gérard
2025-05-18T07:56:43
oeisdata/seq/A014/A014929.seq
34ac034c761afc1cf9ed2fb7c1a8b376
A014930
a(1)=1, a(n) = n*15^(n-1) + a(n-1).
[ "1", "31", "706", "14206", "267331", "4823581", "84557956", "1451432956", "24517448581", "408951042331", "6752105339206", "110549175651706", "1797251568229831", "29043982525261081", "466937872906120456", "7473240118999870456", "119136182166119011081", "1892606438208599479831", "29972552158881206901706" ]
[ "nonn", "easy" ]
20
1
2
null
null
Olivier Gérard
2025-05-22T01:02:58
oeisdata/seq/A014/A014930.seq
44daff5d6e670a1da9095b550be78596
A014931
a(1)=1, a(n) = n*16^(n-1) + a(n-1).
[ "1", "33", "801", "17185", "344865", "6636321", "124076833", "2271560481", "40926266145", "728121033505", "12822748939041", "223928981472033", "3883103678710561", "66933498461897505", "1147797409030816545", "19594541482740368161", "333189190735802745633", "5645851483964153611041", "95370814658487412671265" ]
[ "nonn", "easy" ]
21
1
2
null
null
Olivier Gérard
2025-05-22T01:02:50
oeisdata/seq/A014/A014931.seq
7d2e2661e8da98297264377696fed0ce
A014932
Inverse of 923rd cyclotomic polynomial.
[ "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1" ]
[ "sign" ]
16
0
1
null
null
Simon Plouffe
2024-09-04T15:04:58
oeisdata/seq/A014/A014932.seq
f72734d757a83fc3056b872cfaa3d9a5
A014933
Inverse of 924th cyclotomic polynomial.
[ "1", "0", "1", "0", "0", "0", "-1", "0", "-1", "0", "0", "0", "1", "0", "0", "0", "-1", "0", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "0", "1", "0", "0", "0", "-1", "0", "0", "0", "1", "0", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "0", "-1", "0", "0", "0", "1", "0", "0", "0", "-1", "0", "-1", "0", "0", "0", "1", "0", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
11
0
1
null
null
Simon Plouffe
2017-04-07T10:26:38
oeisdata/seq/A014/A014933.seq
aed61548e8ea646fa1c4d3f6fdbb2a9f
A014934
a(1)=1, a(n)=n*17^(n-1)+a(n-1).
[ "1", "35", "902", "20554", "438159", "8957301", "177920284", "3460629668", "66242446637", "1252121211607", "23428054116546", "434690809808142", "8008779893795035", "146672872354478153", "2672340270745492088", "48471109094902544776", "875711370981239308953" ]
[ "nonn", "easy" ]
17
1
2
null
null
Olivier Gérard
2024-02-12T06:36:22
oeisdata/seq/A014/A014934.seq
ba26b1cb97c0f5097a5184ea8332f2ce
A014935
a(1)=1, a(n) = n*18^(n-1) + a(n-1).
[ "1", "37", "1009", "24337", "549217", "11886625", "249972193", "5147732449", "104327377633", "2087920281313", "41363059774177", "812583980724961", "15851391939265249", "307372900058661601", "5929573413789876961", "113875823277429211873", "2178347851919531492065", "41524755927216069067489", "789106509357850283000545" ]
[ "nonn", "easy" ]
22
1
2
null
null
Olivier Gérard
2025-05-22T01:02:46
oeisdata/seq/A014/A014935.seq
5d4e2dcbc1758cdf09fd8ac2db4b2163
A014936
a(1)=1, a(n) = n*19^(n-1) + a(n-1).
[ "1", "39", "1122", "28558", "680163", "15536757", "344857924", "7495831836", "160347899205", "3387224876995", "70828953712806", "1468712060491434", "30241806008351527", "618983574479950353", "12604083861223212168", "255502116339219984952", "5159006146988779835529", "103805969587115219182431" ]
[ "nonn", "easy" ]
22
1
2
null
null
Olivier Gérard
2025-05-24T00:24:27
oeisdata/seq/A014/A014936.seq
3f954a44df012a5f3d2cc1b002b7c0ea
A014937
a(1)=1, a(n) = n*20^(n-1) + a(n-1).
[ "1", "41", "1241", "33241", "833241", "20033241", "468033241", "10708033241", "241108033241", "5361108033241", "118001108033241", "2575601108033241", "55823601108033241", "1202703601108033241", "25778703601108033241", "550066703601108033241", "11691186703601108033241", "247620786703601108033241" ]
[ "nonn", "easy" ]
19
1
2
null
null
Olivier Gérard
2025-05-18T07:56:47
oeisdata/seq/A014/A014937.seq
a88c557b4a2c8c0dcab4b2f8922fbe1f
A014938
a(1)=1, a(n) = n*21^(n-1) + a(n-1).
[ "1", "43", "1366", "38410", "1010815", "25515421", "625878268", "15034586596", "355440320845", "8298240786655", "191776931546866", "4395106938053518", "100020864586079851", "2262634152933752305", "50921433140756382520", "1140878530467983299336", "25460546264581733880793", "566215511176052187986131" ]
[ "nonn", "easy" ]
25
1
2
null
null
Olivier Gérard
2025-05-29T13:01:46
oeisdata/seq/A014/A014938.seq
30ed7e2a43b76c58d3a6a679168f6124
A014939
Inverse of 930th cyclotomic polynomial.
[ "1", "1", "0", "-1", "-1", "-1", "0", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "-1", "0", "1", "1", "1", "0", "-1", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "1", "0", "-1", "-1", "-1", "0", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
21
0
1
null
null
Simon Plouffe
2017-04-07T10:27:17
oeisdata/seq/A014/A014939.seq
911458ad3d58135987a9ee7c33e39708
A014940
a(1)=1, a(n) = n*22^(n-1) + a(n-1).
[ "1", "45", "1497", "44089", "1215369", "32137161", "825796489", "20780659593", "514663521417", "12587355699337", "304746506405001", "7316566123340937", "174431600326980745", "4133772410690139273", "97461091512107447433", "2287542179758700278921", "53480687617522807714953", "1245979840167792604460169" ]
[ "nonn", "easy" ]
23
1
2
null
null
Olivier Gérard
2025-05-21T01:35:25
oeisdata/seq/A014/A014940.seq
ce593967ad47c175dd4afe36f5c63db2
A014941
a(1)=1, a(n) = n*23^(n-1) + a(n-1).
[ "1", "47", "1634", "50302", "1449507", "40067565", "1076318788", "28314922364", "733113789893", "18744640404523", "474436263754662", "11908153358721786", "296798270974985959", "7353307338085529321", "181245852206166776456", "4447409619636426706168", "108701786686213403738505", "2647602498778146844408359" ]
[ "nonn", "easy" ]
25
1
2
null
null
Olivier Gérard
2025-05-29T13:01:09
oeisdata/seq/A014/A014941.seq
7a44ac18c90ce1695ef86974e35ad408
A014942
a(n) = (1 + 24^n*(23*n - 1))/529.
[ "1", "49", "1777", "57073", "1715953", "49491697", "1387212529", "38078983921", "1028756811505", "27446832213745", "724884022832881", "18985057740861169", "493749574409596657", "12764586312924606193", "328300388160453422833", "8406016915457191128817", "214387788361524002631409", "5448748098049810036109041" ]
[ "nonn", "easy" ]
16
1
2
[ "A014942", "A014960" ]
null
Olivier Gérard
2025-05-21T01:35:19
oeisdata/seq/A014/A014942.seq
d17d7b31c4f612793e0cc168f89f8f7d
A014943
a(1)=1, a(n) = n*25^(n-1) + a(n-1).
[ "1", "51", "1926", "64426", "2017551", "60611301", "1769595676", "50597720676", "1423888736301", "39570861392551", "1088612609439426", "29698842101626926", "804559224181705051", "21666184895568423801", "580459729664855533176", "15481620923512511783176", "411293715135090880923801", "10888672679559224181705051" ]
[ "nonn", "easy" ]
16
1
2
null
null
Olivier Gérard
2025-05-21T01:35:15
oeisdata/seq/A014/A014943.seq
8c2db03ea19d96775ae107bdc310879b
A014944
Inverse of 935th cyclotomic polynomial.
[ "1", "-1", "0", "0", "0", "1", "-1", "0", "0", "0", "1", "0", "-1", "0", "0", "1", "0", "0", "-1", "0", "1", "0", "1", "-2", "0", "1", "0", "1", "-1", "-1", "1", "0", "1", "0", "-1", "0", "0", "1", "0", "0", "-1", "0", "1", "0", "1", "-1", "-1", "1", "0", "1", "0", "-1", "0", "0", "1", "0", "0", "-1", "0", "1", "0", "1", "-1", "-1", "1", "0", "1", "0", "-1", "0", "0", "1", "0", "0", "-1", "0", "1", "0", "1", "-1", "-1" ]
[ "sign" ]
13
0
24
null
null
Simon Plouffe
2017-07-15T11:50:44
oeisdata/seq/A014/A014944.seq
feea603150976a2feedd1f7a2d033995
A014945
Numbers k such that k divides 4^k - 1.
[ "1", "3", "9", "21", "27", "63", "81", "147", "171", "189", "243", "441", "513", "567", "657", "729", "903", "1029", "1197", "1323", "1539", "1701", "1971", "2187", "2667", "2709", "3087", "3249", "3591", "3969", "4599", "4617", "5103", "5913", "6321", "6561", "7077", "7203", "8001", "8127", "8379", "9261", "9747", "10773", "11907", "12483" ]
[ "nonn" ]
51
1
2
[ "A014741", "A014945", "A323203" ]
null
Olivier Gérard
2022-09-08T08:44:39
oeisdata/seq/A014/A014945.seq
b3815613901c9f73838e1e497d1500c4
A014946
Numbers k that divide 6^k-1.
[ "1", "5", "25", "125", "625", "1555", "3125", "7775", "15625", "38875", "78125", "194375", "390625", "483605", "971875", "1953125", "2418025", "4859375", "9673655", "9765625", "12090125", "24296875", "48368275", "48828125", "60450625", "120909025", "121484375", "150401155", "241841375" ]
[ "nonn" ]
21
1
2
[ "A014946", "A024062" ]
null
Olivier Gérard
2021-06-28T04:06:05
oeisdata/seq/A014/A014946.seq
251d638908c05b9f3b06950de494bf67
A014947
Inverse of 938th cyclotomic polynomial.
[ "1", "-1", "1", "-1", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "1", "-1", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
13
0
1
null
null
Simon Plouffe
2017-04-07T10:29:14
oeisdata/seq/A014/A014947.seq
0a883bc213b963d60fbefcca1efa9468
A014948
Numbers k such that k divides s(k), where s(1)=1, s(j)= s(j-1) + j*7^(j-1).
[ "1", "3", "9", "27", "57", "81", "171", "243", "333", "513", "729", "999", "1083", "1539", "2187", "2943", "2997", "3249", "4617", "6327", "6561", "8829", "8991", "9567", "9747", "12321", "13851", "18981", "19683", "20577", "21897", "23883", "26487", "26973", "28701", "29241" ]
[ "nonn" ]
8
1
2
null
null
Olivier Gérard
2021-08-20T22:08:50
oeisdata/seq/A014/A014948.seq
ee3ffaa9f41c782ebd98c0660f8018d4
A014949
Numbers k that divide 8^k - 1.
[ "1", "7", "49", "343", "889", "2359", "2401", "6223", "16513", "16807", "43561", "112903", "115591", "117649", "299593", "304927", "790321", "794983", "809137", "823543", "2033143", "2097151", "2134489", "5532247", "5564881", "5663959", "5764801", "13549249", "14232001", "14338681", "14680057", "14941423", "34591207", "38048311", "38725729" ]
[ "nonn" ]
21
1
2
[ "A014949", "A024088" ]
null
Olivier Gérard
2021-06-28T04:06:01
oeisdata/seq/A014/A014949.seq
38ea41ce5a12ce420184e353daab7cc3
A014950
Numbers m such that m divides 10^m - 1.
[ "1", "3", "9", "27", "81", "111", "243", "333", "729", "999", "2187", "2997", "4107", "6561", "8991", "12321", "13203", "19683", "20439", "26973", "36963", "39609", "59049", "61317", "80919", "110889", "118827", "151959", "177147", "183951", "242757", "332667", "356481", "455877", "488511", "531441", "551853", "728271" ]
[ "nonn" ]
79
1
2
[ "A014950", "A066364", "A114207", "A122787", "A127100", "A232769" ]
null
Olivier Gérard
2025-01-05T19:51:34
oeisdata/seq/A014/A014950.seq
9eaca2607c1a67fff95559b22167f670
A014951
Positive integers k such that k divides 12^k - 1.
[ "1", "11", "121", "253", "1331", "2783", "5819", "11891", "14641", "30613", "64009", "130801", "133837", "161051", "273493", "336743", "558877", "704099", "768361", "849299", "1438811", "1472207", "1771561", "3008423", "3078251", "3544453", "3704173", "6147647", "6290339", "7745089" ]
[ "nonn" ]
25
1
2
[ "A014951", "A015961" ]
null
Olivier Gérard
2022-06-08T15:36:59
oeisdata/seq/A014/A014951.seq
4e4dcb4ebc0f21f6a65b5dd6e4aa6358
A014952
Inverse of 943rd cyclotomic polynomial.
[ "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
14
0
1
null
null
Simon Plouffe
2017-04-07T10:29:56
oeisdata/seq/A014/A014952.seq
4ac86163af6b4af72a8a5dcf8d1284e1
A014953
Numbers k such that k divides s(k), where s(1)=1, s(j) = s(j-1) + j*13^(j-1).
[ "1", "3", "9", "27", "81", "183", "243", "549", "729", "1647", "2187", "4941", "6561", "11163", "14823", "19683", "33489", "44469", "59049", "67161", "100467", "133407", "177147", "201483", "301401", "400221", "531441", "604449", "680943", "736941", "870897", "904203", "1063611", "1200663", "1406721" ]
[ "nonn" ]
20
1
2
[ "A000244", "A014928", "A014953" ]
null
Olivier Gérard
2021-07-02T01:57:32
oeisdata/seq/A014/A014953.seq
a0b99df14ee67890b4304a55ace66347
A014954
Inverse of 945th cyclotomic polynomial.
[ "1", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
12
0
1
null
null
Simon Plouffe
2017-04-07T10:30:38
oeisdata/seq/A014/A014954.seq
e4badfe5106146dcab04d6cb1ed9ba43
A014955
Inverse of 946th cyclotomic polynomial.
[ "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
11
0
1
null
null
Simon Plouffe
2017-04-07T10:31:15
oeisdata/seq/A014/A014955.seq
73edc7431c35dc64a1504bca03643d78
A014956
Positive integers k such that k divides 14^k - 1.
[ "1", "13", "169", "2041", "2197", "26533", "28561", "114413", "320437", "344929", "371293", "1487369", "4165681", "4484077", "4826809", "17962841", "19335797", "24355253", "50308609", "54153853", "58293001", "62748517", "77457601", "233516933", "249302027", "251365361", "316618289" ]
[ "nonn" ]
21
1
2
[ "A014945", "A014946", "A014949", "A014950", "A014951", "A014956", "A014957", "A067945", "A067946", "A067947", "A068382", "A068383", "A116621", "A128358", "A128360", "A128394", "A177805", "A177807", "A177914" ]
null
Olivier Gérard
2021-06-06T06:26:56
oeisdata/seq/A014/A014956.seq
9e4667d2c607211f2e6d010cf861e8d8
A014957
Positive integers k that divide 16^k - 1.
[ "1", "3", "5", "9", "15", "21", "25", "27", "39", "45", "55", "63", "75", "81", "105", "117", "125", "135", "147", "155", "165", "171", "189", "195", "205", "225", "243", "273", "275", "315", "333", "351", "375", "405", "441", "465", "495", "507", "513", "525", "567", "585", "605", "609", "615", "625", "657", "675", "729", "735", "775", "819", "825", "855", "903" ]
[ "nonn" ]
23
1
2
[ "A014945", "A014946", "A014949", "A014950", "A014951", "A014956", "A014957", "A067945", "A067946", "A067947", "A068382", "A068383", "A116621", "A128358", "A128360", "A128396", "A177805", "A177807", "A177916" ]
null
Olivier Gérard
2024-06-12T16:16:48
oeisdata/seq/A014/A014957.seq
a0f02a7969f1318125da863d7c61839c
A014958
Inverse of 949th cyclotomic polynomial.
[ "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1" ]
[ "sign" ]
11
0
1
null
null
Simon Plouffe
2017-04-07T10:31:56
oeisdata/seq/A014/A014958.seq
db78c74b09dc09beac51a0e6345bfaa9
A014959
Integers k such that k divides 22^k - 1.
[ "1", "3", "7", "9", "21", "27", "39", "49", "63", "81", "117", "147", "189", "243", "273", "343", "351", "441", "507", "567", "729", "819", "1029", "1053", "1143", "1323", "1521", "1701", "1911", "2187", "2401", "2457", "2943", "3081", "3087", "3159", "3429", "3549", "3969", "4401", "4563", "5103", "5733", "6561", "6591", "7203", "7371" ]
[ "nonn" ]
14
1
2
[ "A014945", "A014946", "A014949", "A014950", "A014951", "A014956", "A014957", "A014959", "A014960", "A067945", "A067946", "A067947", "A068382", "A068383", "A116621", "A125000", "A128358", "A128360", "A177805", "A177807" ]
null
Olivier Gérard
2025-06-10T19:05:16
oeisdata/seq/A014/A014959.seq
1540b54a012ce8398bf76f30ad62b7c3
A014960
Integers n such that n divides 24^n - 1.
[ "1", "23", "529", "1081", "12167", "24863", "50807", "279841", "571849", "1168561", "2387929", "2870377", "6436343", "7009273", "13152527", "15954479", "26876903", "54922367", "66018671", "112232663", "134907719", "148035889", "161213279", "302508121", "329435831" ]
[ "nonn" ]
22
1
2
[ "A014942", "A014945", "A014946", "A014949", "A014950", "A014951", "A014956", "A014957", "A014959", "A014960", "A067945", "A067946", "A067947", "A068382", "A068383", "A087807", "A116621", "A125000", "A128358", "A128360", "A177805", "A177807" ]
null
Olivier Gérard
2023-01-19T19:45:55
oeisdata/seq/A014/A014960.seq
c9571c6e7e3973276e9902c1a79b4537
A014961
Inverse of 952nd cyclotomic polynomial.
[ "1", "0", "0", "0", "-1", "0", "0", "0", "1", "0", "0", "0", "-1", "0", "0", "0", "1", "0", "0", "0", "-1", "0", "0", "0", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "0", "0", "0", "-1", "0", "0", "0", "1", "0", "0", "0", "-1" ]
[ "sign" ]
14
0
1
null
null
Simon Plouffe
2017-04-07T10:32:33
oeisdata/seq/A014/A014961.seq
887c06e96337407ab42b4a98ee199f97
A014962
Odd numbers k that divide 25^k - 1.
[ "1", "3", "9", "21", "27", "63", "81", "93", "147", "171", "189", "243", "279", "441", "513", "567", "609", "651", "729", "837", "903", "1029", "1197", "1323", "1539", "1701", "1827", "1953", "2187", "2511", "2667", "2709", "2883", "2943", "3087", "3249", "3591", "3969", "4263", "4401", "4557", "4617", "5103", "5301", "5481", "5859", "6321" ]
[ "nonn" ]
19
1
2
[ "A014943", "A014945", "A014946", "A014949", "A014950", "A014951", "A014956", "A014957", "A014959", "A014960", "A014962", "A128358", "A128360" ]
null
Olivier Gérard
2021-07-02T01:57:27
oeisdata/seq/A014/A014962.seq
4b86d911b888d209efeffb16323e4dcc
A014963
Exponential of Mangoldt function M(n): a(n) = 1 unless n is a prime or prime power, in which case a(n) = that prime.
[ "1", "2", "3", "2", "5", "1", "7", "2", "3", "1", "11", "1", "13", "1", "1", "2", "17", "1", "19", "1", "1", "1", "23", "1", "5", "1", "3", "1", "29", "1", "31", "2", "1", "1", "1", "1", "37", "1", "1", "1", "41", "1", "43", "1", "1", "1", "47", "1", "7", "1", "1", "1", "53", "1", "1", "1", "1", "1", "59", "1", "61", "1", "1", "2", "1", "1", "67", "1", "1", "1", "71", "1", "73", "1", "1", "1", "1", "1", "79", "1", "3", "1", "83", "1", "1", "1", "1", "1", "89", "1", "1", "1", "1", "1", "1" ]
[ "nonn", "easy", "nice" ]
278
1
2
[ "A000027", "A003418", "A007947", "A008472", "A008578", "A008683", "A014963", "A020500", "A048671", "A072107", "A081386", "A081387", "A099636", "A100994", "A100995", "A120007", "A140254", "A140255", "A140256", "A140579", "A140580", "A140581", "A297108", "A297109", "A340675", "A348846", "A368749" ]
null
Marc LeBrun
2025-04-06T09:02:49
oeisdata/seq/A014/A014963.seq
b16e4cc1ea618d8d96a12bcc5ee12be8
A014964
a(n) = lcm(n, 2^(n-1)).
[ "1", "2", "12", "8", "80", "96", "448", "128", "2304", "2560", "11264", "6144", "53248", "57344", "245760", "32768", "1114112", "1179648", "4980736", "2621440", "22020096", "23068672", "96468992", "25165824", "419430400", "436207616", "1811939328" ]
[ "nonn" ]
31
1
2
[ "A000027", "A014964", "A084623" ]
null
N. J. A. Sloane
2018-04-01T18:12:02
oeisdata/seq/A014/A014964.seq
f450f59ec05daa5f26e41916af000a08
A014965
a(n) = lcm(n, Fibonacci(n)).
[ "1", "2", "6", "12", "5", "24", "91", "168", "306", "110", "979", "144", "3029", "5278", "1830", "15792", "27149", "23256", "79439", "27060", "229866", "389642", "659111", "46368", "75025", "3156218", "5303286", "8898708", "14912641", "2496120", "41734339", "69705888" ]
[ "nonn" ]
7
1
2
null
null
N. J. A. Sloane
2018-04-01T18:12:10
oeisdata/seq/A014/A014965.seq
23a4d1d3646675669a5083a50b77b45b
A014966
Inverse of 957th cyclotomic polynomial.
[ "1", "-1", "0", "1", "-1", "0", "1", "-1", "0", "1", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "0", "1", "-1", "0", "1", "-1", "0", "1", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "0", "1", "-1", "0", "1", "-1", "0", "1", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "0" ]
[ "sign" ]
11
0
1
null
null
Simon Plouffe
2017-04-07T10:33:16
oeisdata/seq/A014/A014966.seq
779b1ad6d81dc48c4c8d9a7e3abccc54
A014967
Continued fraction for Conway's constant.
[ "1", "3", "3", "2", "2", "54", "5", "2", "1", "16", "1", "30", "1", "1", "1", "2", "2", "1", "14", "1", "6", "24", "107", "5", "1", "1", "26", "2", "41", "10", "1", "1", "5", "17", "5", "1", "8", "3", "94", "38", "1", "18", "1", "1", "2", "1", "64", "18", "1", "6", "1", "2", "2", "1", "23", "1", "4", "4", "1", "1", "3", "4", "1", "10", "1", "28", "4", "12", "1", "1238", "13", "1", "1", "58", "1", "2", "4", "1", "3", "7", "1", "3", "1", "4", "1", "1", "1", "1", "1", "1", "100" ]
[ "cofr", "nonn" ]
17
0
2
[ "A005150", "A014715", "A014967" ]
null
Eric W. Weisstein
2025-02-16T08:32:33
oeisdata/seq/A014/A014967.seq
2e3b1d017cb22839fbe3d609cf99d6c9
A014968
Expansion of (1/theta_4 - 1)/2.
[ "0", "1", "2", "4", "7", "12", "20", "32", "50", "77", "116", "172", "252", "364", "520", "736", "1031", "1432", "1974", "2700", "3668", "4952", "6644", "8864", "11764", "15533", "20412", "26704", "34784", "45124", "58312", "75072", "96306", "123128", "156904", "199320", "252443", "318796", "401468", "504224", "631636", "789264", "983848", "1223532", "1518164", "1879620", "2322184", "2863040" ]
[ "nonn" ]
68
0
3
[ "A014968", "A015128", "A160549", "A265835", "A277912", "A277968", "A277974" ]
null
N. J. A. Sloane
2025-04-17T03:35:37
oeisdata/seq/A014/A014968.seq
fcfd6e378c2b4fa2755ce56278253c7a
A014969
Expansion of (theta_3(q) / theta_4(q))^2 in powers of q.
[ "1", "8", "32", "96", "256", "624", "1408", "3008", "6144", "12072", "22976", "42528", "76800", "135728", "235264", "400704", "671744", "1109904", "1809568", "2914272", "4640256", "7310592", "11404416", "17626944", "27009024", "41047992", "61905088", "92681664" ]
[ "nonn", "nice" ]
68
0
2
[ "A014969", "A014972", "A029841", "A107035", "A115977", "A131126", "A139820" ]
null
N. J. A. Sloane
2025-02-16T08:32:33
oeisdata/seq/A014/A014969.seq
7e56e03a36e774649ca431f6aec6f5d4
A014970
Expansion of (theta_3 / theta_4)^3.
[ "1", "12", "72", "304", "1056", "3240", "9056", "23520", "57600", "134332", "300528", "648720", "1357184", "2761800", "5482944", "10645664", "20256768", "37842264", "69511272", "125712624", "224104896", "394198912", "684799776", "1175834016", "1996991488" ]
[ "nonn", "changed" ]
10
0
2
null
null
N. J. A. Sloane
2025-07-08T05:42:36
oeisdata/seq/A014/A014970.seq
7dee1fb16dba73f4ad254646b54c73e4
A014971
Inverse of 962nd cyclotomic polynomial.
[ "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
16
0
1
null
null
Simon Plouffe
2017-09-28T19:53:48
oeisdata/seq/A014/A014971.seq
66ba70d21a8642cf27a4955734dd16cd
A014972
Expansion of (theta_3(q) / theta_4(q) )^4 in powers of q; also of 1 / (1 - lambda(z)).
[ "1", "16", "128", "704", "3072", "11488", "38400", "117632", "335872", "904784", "2320128", "5702208", "13504512", "30952544", "68901888", "149403264", "316342272", "655445792", "1331327616", "2655115712", "5206288384", "10049485312", "19115905536", "35867019904", "66437873664" ]
[ "nonn" ]
35
0
2
[ "A005798", "A007248", "A014972", "A029845", "A092877", "A128692", "A132136" ]
null
N. J. A. Sloane
2025-02-16T08:32:33
oeisdata/seq/A014/A014972.seq
f6f2591487c60209e550d46f2a34e79a
A014973
a(n) = n / gcd(n, (n-1)!).
[ "1", "2", "3", "2", "5", "1", "7", "1", "1", "1", "11", "1", "13", "1", "1", "1", "17", "1", "19", "1", "1", "1", "23", "1", "1", "1", "1", "1", "29", "1", "31", "1", "1", "1", "1", "1", "37", "1", "1", "1", "41", "1", "43", "1", "1", "1", "47", "1", "1", "1", "1", "1", "53", "1", "1", "1", "1", "1", "59", "1", "61", "1", "1", "1", "1", "1", "67", "1", "1", "1", "71", "1", "73", "1", "1", "1", "1", "1", "79", "1", "1", "1", "83", "1", "1", "1", "1" ]
[ "nonn", "easy" ]
70
1
2
[ "A014973", "A092043" ]
null
Marc LeBrun
2024-12-30T21:53:17
oeisdata/seq/A014/A014973.seq
41bebea856689e979fafde9d093e2755
A014974
Differences between successive locations of zeros in decimal expansion of Pi.
[ "18", "4", "11", "6", "6", "8", "12", "9", "10", "5", "7", "4", "14", "13", "5", "3", "9", "19", "12", "38", "3", "16", "6", "17", "4", "16", "1", "3", "16", "3", "10", "17", "3", "1", "5", "3", "6", "23", "5", "5", "13", "22", "8", "42", "20", "7", "3", "20", "2", "7", "5", "4", "35", "5", "1", "1", "15", "20", "19", "2", "10", "13", "2", "19", "12", "5" ]
[ "nonn", "base" ]
47
1
1
[ "A000796", "A014974", "A037008", "A108664", "A139728" ]
null
Bagirath R. Krishnamachari (bagi(AT)callisto.miel.mot.com)
2025-02-16T08:32:33
oeisdata/seq/A014/A014974.seq
302a8b21a8707215947c622d1322dd83
A014975
Inverse of 966th cyclotomic polynomial.
[ "1", "1", "0", "-1", "-1", "0", "1", "0", "-1", "-1", "0", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "-1", "0", "1", "1", "0", "-1", "0", "1", "1", "0", "-1", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "1", "0", "-1", "-1", "0", "1", "0", "-1", "-1", "0", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
13
0
1
null
null
Simon Plouffe
2018-06-01T12:14:55
oeisdata/seq/A014/A014975.seq
b5e1433ef8d223c2de8bcfcd39a3e622
A014976
Successive locations of zeros in decimal expansion of Pi (where locations 1, 2, 3, ... correspond to digits 3, 1, 4, ...).
[ "33", "51", "55", "66", "72", "78", "86", "98", "107", "117", "122", "129", "133", "147", "160", "165", "168", "177", "196", "208", "246", "249", "265", "271", "288", "292", "308", "309", "312", "328", "331", "341", "358", "361", "362", "367", "370", "376", "399", "404", "409", "422", "444", "452", "494", "514", "521", "524", "544", "546", "553", "558", "562", "597", "602", "603", "604", "619", "639", "658" ]
[ "nonn", "base" ]
27
1
1
[ "A000796", "A014976", "A037008", "A053745", "A053753", "A088563" ]
null
Bagirath R. Krishnamachari (bagi(AT)callisto.miel.mot.com)
2024-07-28T16:55:24
oeisdata/seq/A014/A014976.seq
f3bd1288e052e72a0d94b0afc6b1742a
A014977
Expansion of Molien series for automorphism group (2.Weyl(E6)) of E6 lattice.
[ "1", "1", "1", "2", "3", "4", "6", "8", "10", "14", "18", "22", "29", "36", "43", "54", "66", "78", "95", "113", "132", "157", "184", "212", "248", "287", "327", "377", "431", "487", "555", "628", "704", "794", "891", "992", "1110", "1236", "1367", "1518", "1680", "1848", "2039", "2243", "2455", "2694" ]
[ "nonn", "changed" ]
11
0
4
[ "A008584", "A014977" ]
null
N. J. A. Sloane
2025-07-08T05:42:42
oeisdata/seq/A014/A014977.seq
38ded3c951fe7cb691c5ffa87d62f4c0
A014978
Inverse of 969th cyclotomic polynomial.
[ "1", "-1", "0", "1", "-1", "0", "1", "-1", "0", "1", "-1", "0", "1", "-1", "0", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
11
0
1
null
null
Simon Plouffe
2017-04-07T10:35:18
oeisdata/seq/A014/A014978.seq
02034d0e2042c7a686ffd4b00fee7522
A014979
Numbers that are both triangular and pentagonal.
[ "0", "1", "210", "40755", "7906276", "1533776805", "297544793910", "57722156241751", "11197800766105800", "2172315626468283465", "421418033734080886426", "81752926228785223683195", "15859646270350599313653420" ]
[ "nonn", "easy" ]
31
1
3
[ "A014979", "A046174", "A046175", "A076139", "A108281" ]
null
Glenn Johnston (glennj(AT)sonic.net)
2025-02-16T08:32:33
oeisdata/seq/A014/A014979.seq
e4765cdc3fce965e9fc3179288462654
A014980
a(n+1) = floor(a(n)/2) * ceiling(a(n)/2), a(0) = 5.
[ "5", "6", "9", "20", "100", "2500", "1562500", "610351562500", "93132257461547851562500", "2168404344971008868014905601739883422851562500", "1175494350822287507968736537222245677818665556772087521508751706278417259454727172851562500" ]
[ "nonn", "nice", "easy" ]
37
0
1
[ "A002620", "A014980", "A194079" ]
null
Colin Sandon (sandon(AT)together.net)
2025-07-02T16:01:55
oeisdata/seq/A014/A014980.seq
cec47fa8f2644b3be710af058e96e303
A014981
a(n) = c(prime(n))/prime(n), where c = Perrin sequence A001608 (starting 0,2,3,...) and prime(n) is the n-th prime.
[ "1", "1", "1", "1", "2", "3", "7", "11", "28", "120", "197", "892", "2479", "4148", "11687", "56010", "271913", "461529", "2270882", "6599404", "11263855", "56250108", "164879269", "830987861", "7231032935", "21386730355", "36802336319", "109099442316", "187943217386" ]
[ "nonn", "easy", "nice" ]
25
1
5
[ "A000040", "A001608", "A014981", "A052338", "A064723" ]
null
Clark Kimberling, Robert G. Wilson v
2022-03-03T11:45:33
oeisdata/seq/A014/A014981.seq
3c955dff4fbd23f71d95440cdb9ff86d
A014982
Number of "coherent" reduced decompositions for the longest permutation n n-1 n-2 ... 3 2 1 in the symmetric group on n letters.
[ "1", "1", "2", "12", "272", "21666" ]
[ "nonn", "more" ]
8
1
3
null
null
Victor Reiner (reiner(AT)math.umn.edu)
2015-08-15T09:04:16
oeisdata/seq/A014/A014982.seq
665512ea7ebba3823e4fd2026e451b95
A014983
a(n) = (1 - (-3)^n)/4.
[ "0", "1", "-2", "7", "-20", "61", "-182", "547", "-1640", "4921", "-14762", "44287", "-132860", "398581", "-1195742", "3587227", "-10761680", "32285041", "-96855122", "290565367", "-871696100", "2615088301", "-7845264902", "23535794707", "-70607384120", "211822152361", "-635466457082", "1906399371247" ]
[ "sign", "easy" ]
63
0
3
[ "A014983", "A014985", "A014986", "A014987", "A014989", "A014990", "A014991", "A014992", "A014993", "A014994", "A077925" ]
null
Olivier Gérard
2022-09-08T08:44:39
oeisdata/seq/A014/A014983.seq
e9af97694c0fb32879fb3a66cede4d77
A014984
Inverse of 975th cyclotomic polynomial.
[ "1", "0", "0", "0", "0", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "0", "0", "0", "0", "-1", "0", "0", "0", "0", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "0", "0", "0", "0", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "0", "0", "0", "0", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1" ]
[ "sign" ]
11
0
1
null
null
Simon Plouffe
2017-04-07T10:36:04
oeisdata/seq/A014/A014984.seq
0922b8a53c432c2a17e0e5aec1b999d1
A014985
a(n) = (1 - (-4)^n)/5.
[ "1", "-3", "13", "-51", "205", "-819", "3277", "-13107", "52429", "-209715", "838861", "-3355443", "13421773", "-53687091", "214748365", "-858993459", "3435973837", "-13743895347", "54975581389", "-219902325555", "879609302221", "-3518437208883", "14073748835533" ]
[ "sign", "easy" ]
47
1
2
[ "A014983", "A014985", "A014986", "A014987", "A014989", "A014994", "A077925" ]
null
Olivier Gérard
2025-04-27T14:53:27
oeisdata/seq/A014/A014985.seq
609c60fa01cb5c8a6ead99c5a03aad42
A014986
a(n) = (1 - (-5)^n)/6.
[ "1", "-4", "21", "-104", "521", "-2604", "13021", "-65104", "325521", "-1627604", "8138021", "-40690104", "203450521", "-1017252604", "5086263021", "-25431315104", "127156575521", "-635782877604", "3178914388021", "-15894571940104", "79472859700521" ]
[ "sign", "easy" ]
40
1
2
[ "A014983", "A014985", "A014986", "A014987", "A014989", "A014990", "A014991", "A014992", "A014993", "A014994", "A077925" ]
null
Olivier Gérard
2024-02-07T12:30:02
oeisdata/seq/A014/A014986.seq
690baff94556dcf670dba4370ef658ba
A014987
a(n) = (1 - (-6)^n)/7.
[ "1", "-5", "31", "-185", "1111", "-6665", "39991", "-239945", "1439671", "-8638025", "51828151", "-310968905", "1865813431", "-11194880585", "67169283511", "-403015701065", "2418094206391", "-14508565238345", "87051391430071", "-522308348580425", "3133850091482551" ]
[ "sign", "easy" ]
37
1
2
[ "A014983", "A014985", "A014986", "A014987", "A014989", "A014994", "A015540", "A077925" ]
null
Olivier Gérard
2022-09-08T08:44:39
oeisdata/seq/A014/A014987.seq
a4bb1a886d7fca1c65358e227fa7b792
A014988
Inverse of 979th cyclotomic polynomial.
[ "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
13
0
1
null
null
Simon Plouffe
2024-01-12T07:41:41
oeisdata/seq/A014/A014988.seq
9567d25614377c79b2faef0dc4109478
A014989
a(n) = (1 - (-7)^n)/8.
[ "1", "-6", "43", "-300", "2101", "-14706", "102943", "-720600", "5044201", "-35309406", "247165843", "-1730160900", "12111126301", "-84777884106", "593445188743", "-4154116321200", "29078814248401", "-203551699738806", "1424861898171643", "-9974033287201500" ]
[ "sign", "easy" ]
34
1
2
[ "A014983", "A014985", "A014987", "A014989", "A014990", "A014994", "A077925" ]
null
Olivier Gérard
2022-09-08T08:44:39
oeisdata/seq/A014/A014989.seq
6861d7b6a3b280e89bcb95a2afd80ee1
A014990
a(n) = (1 - (-8)^n)/9.
[ "1", "-7", "57", "-455", "3641", "-29127", "233017", "-1864135", "14913081", "-119304647", "954437177", "-7635497415", "61083979321", "-488671834567", "3909374676537", "-31274997412295", "250199979298361", "-2001599834386887", "16012798675095097" ]
[ "sign", "easy" ]
40
1
2
[ "A014983", "A014985", "A014986", "A014987", "A014989", "A014990", "A014991", "A014992", "A014993", "A014994", "A015565", "A077925" ]
null
Olivier Gérard
2024-02-10T11:34:54
oeisdata/seq/A014/A014990.seq
8252534d151818dfa752caffa8e2b88c
A014991
a(n) = (1 - (-9)^n)/10.
[ "1", "-8", "73", "-656", "5905", "-53144", "478297", "-4304672", "38742049", "-348678440", "3138105961", "-28242953648", "254186582833", "-2287679245496", "20589113209465", "-185302018885184", "1667718169966657", "-15009463529699912" ]
[ "sign", "easy" ]
40
1
2
[ "A014983", "A014985", "A014987", "A014989", "A014991", "A014994", "A077925" ]
null
Olivier Gérard
2024-02-07T12:29:40
oeisdata/seq/A014/A014991.seq
c8000bffeea8c23cdd6cd93c87715a7b
A014992
a(n) = (1 - (-10)^n)/11.
[ "1", "-9", "91", "-909", "9091", "-90909", "909091", "-9090909", "90909091", "-909090909", "9090909091", "-90909090909", "909090909091", "-9090909090909", "90909090909091", "-909090909090909", "9090909090909091", "-90909090909090909" ]
[ "sign", "easy" ]
30
1
2
[ "A014983", "A014985", "A014986", "A014987", "A014989", "A014990", "A014991", "A014992", "A014993", "A014994", "A077925" ]
null
Olivier Gérard
2022-09-08T08:44:39
oeisdata/seq/A014/A014992.seq
6d8c35391a21d5032a8603fa58745be0
A014993
a(n) = (1 - (-11)^n)/12.
[ "1", "-10", "111", "-1220", "13421", "-147630", "1623931", "-17863240", "196495641", "-2161452050", "23775972551", "-261535698060", "2876892678661", "-31645819465270", "348104014117971", "-3829144155297680", "42120585708274481" ]
[ "sign", "easy" ]
31
1
2
[ "A014983", "A014985", "A014986", "A014987", "A014989", "A014990", "A014991", "A014992", "A014993", "A014994", "A077925" ]
null
Olivier Gérard
2024-08-04T16:38:02
oeisdata/seq/A014/A014993.seq
d51ee49ba15ec360468ecbccb3a504f3
A014994
a(n) = (1 - (-12)^n)/13.
[ "1", "-11", "133", "-1595", "19141", "-229691", "2756293", "-33075515", "396906181", "-4762874171", "57154490053", "-685853880635", "8230246567621", "-98762958811451", "1185155505737413", "-14221866068848955", "170662392826187461" ]
[ "sign", "easy" ]
33
1
2
[ "A014983", "A014985", "A014987", "A014989", "A014993", "A014994", "A077925" ]
null
Olivier Gérard
2022-09-08T08:44:39
oeisdata/seq/A014/A014994.seq
fe89bdbf0f89f302c32a46f8fbb222b9
A014995
Inverse of 986th cyclotomic polynomial.
[ "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
11
0
1
null
null
Simon Plouffe
2017-04-07T10:37:21
oeisdata/seq/A014/A014995.seq
1331b8c6afc1c385d10406a12b5cbdae
A014996
Inverse of 987th cyclotomic polynomial.
[ "1", "-1", "0", "1", "-1", "0", "1", "0", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "-1", "0", "1", "-1", "0", "1", "0", "-1", "1", "0", "-1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
13
0
1
null
null
Simon Plouffe
2017-09-30T16:53:08
oeisdata/seq/A014/A014996.seq
6efbd3a104593d074045f1af92175bfe
A014997
Inverse of 988th cyclotomic polynomial.
[ "1", "0", "-1", "0", "1", "0", "-1", "0", "1", "0", "-1", "0", "1", "0", "-1", "0", "1", "0", "-1", "0", "1", "0", "-1", "0", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "0", "-1", "0", "1", "0", "-1", "0", "1", "0", "-1", "0", "1", "0", "-1", "0", "1", "0", "-1", "0", "1", "0", "-1", "0", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
13
0
1
null
null
Simon Plouffe
2018-06-06T15:44:36
oeisdata/seq/A014/A014997.seq
d9bd58b594e15eb818379bc0e5656142
A014998
Inverse of 989th cyclotomic polynomial.
[ "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0" ]
[ "sign" ]
13
0
1
null
null
Simon Plouffe
2017-04-07T10:39:20
oeisdata/seq/A014/A014998.seq
82f88b5b091335ec228bcc69ecbc9c4f
A014999
Inverse of 990th cyclotomic polynomial.
[ "1", "0", "0", "1", "0", "0", "0", "0", "0", "-1", "0", "0", "-1", "0", "0", "-1", "0", "0", "0", "0", "0", "1", "0", "0", "1", "0", "0", "0", "0", "0", "0", "0", "0", "-1", "0", "0", "-1", "0", "0", "0", "0", "0", "1", "0", "0", "1", "0", "0", "1", "0", "0", "0", "0", "0", "-1", "0", "0", "-1", "0", "0", "0", "0", "0", "0", "0", "0", "1", "0", "0", "1", "0", "0", "0", "0", "0", "-1", "0", "0", "-1", "0", "0" ]
[ "sign" ]
11
0
1
null
null
Simon Plouffe
2017-04-07T10:40:00
oeisdata/seq/A014/A014999.seq
cdf51f935d0a21f2edb56f34dccfd7ff
A015000
q-integers for q=-13.
[ "1", "-12", "157", "-2040", "26521", "-344772", "4482037", "-58266480", "757464241", "-9847035132", "128011456717", "-1664148937320", "21633936185161", "-281241170407092", "3656135215292197", "-47529757798798560", "617886851384381281" ]
[ "sign", "easy" ]
40
1
2
[ "A014983", "A014985", "A014987", "A014989", "A014994", "A015000", "A077925" ]
null
Olivier Gérard
2022-09-08T08:44:39
oeisdata/seq/A015/A015000.seq
4720d16a1da0d6ab7703aff6a31bf6c7