Datasets:
christopher
/
oeis

Dataset card Data Studio Files
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Community
2
sequence_id
stringlengths
7
7
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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
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cross_references
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1
128
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listlengths
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author
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231
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timestamp
timestamp[us]date
1999-12-11 03:00:00
2025-07-14 02:38:35
filename
stringlengths
29
29
hash
stringlengths
32
32
A009701
Expansion of e.g.f. tan(tan(x))/cos(x), odd powers only.
[ "1", "7", "137", "5535", "386481", "41604055", "6390472441", "1326107352879", "357130810766305", "121056393177867303", "50420813008501457897", "25307979564532627724095", "15065045963101006722139793" ]
[ "nonn" ]
25
0
2
null
null
R. H. Hardin
2014-04-20T09:25:13
oeisdata/seq/A009/A009701.seq
91c69b3ff680ced3f71af5ca431ef0f1
A009702
Expansion of tan(tan(x))/cosh(x) (odd powers only).
[ "1", "1", "57", "1657", "136977", "14004945", "2219125001", "457176874377", "123849671844513", "41945147421378337", "17490738249607542873", "8778749876346904238105", "5226971507061600220653233", "3640737476966979742943568113" ]
[ "nonn" ]
11
1
3
null
null
R. H. Hardin
2015-01-23T14:41:52
oeisdata/seq/A009/A009702.seq
ca70c66698352fbfcfb239b3188a7082
A009703
Expansion of tan(tan(x)*cosh(x)).
[ "1", "7", "157", "8979", "886713", "134445023", "29022793685", "8445323514091", "3184918775268209", "1510646771277811895", "880054493816590384397", "617711163636251375413699", "514133191574202261159610153" ]
[ "nonn" ]
12
0
2
null
null
R. H. Hardin
2021-06-06T11:25:53
oeisdata/seq/A009/A009703.seq
e061349a647cda606eaf55a8cb827526
A009704
Expansion of tan(tan(x).exp(x)).
[ "0", "1", "2", "7", "36", "277", "2422", "24939", "292488", "3893577", "57581162", "937884143", "16663799724", "320906530973", "6656135961438", "147944310556051", "3507720648511504", "88369892016844561", "2357319985504634066" ]
[ "nonn", "easy" ]
8
0
3
null
null
R. H. Hardin
2014-01-27T09:13:00
oeisdata/seq/A009/A009704.seq
a357c853837b270554ca3744d971fe9f
A009705
E.g.f. tan(tan(x)*sin(x)), even powers only.
[ "0", "2", "4", "302", "8104", "947642", "86855404", "16203909542", "3130092938704", "896924477276402", "290713861720990804", "121467176505314129822", "58492863120535523766904", "33925794100542844193202602" ]
[ "nonn" ]
16
0
2
null
null
R. H. Hardin
2014-01-27T09:13:00
oeisdata/seq/A009/A009705.seq
6bb753336f6b2776dae2878ac4218d1e
A009706
tan(sinh(x)*tan(x))=2/2!*x^2+12/4!*x^4+382/6!*x^6+23352/8!*x^8...
[ "0", "2", "12", "382", "23352", "2223002", "318236292", "63069898582", "16506522005232", "5516152886719922", "2290713333669640572", "1156963264109505327022", "698325697094916345135912", "496389417580098665436907082" ]
[ "nonn" ]
12
0
2
null
null
R. H. Hardin
2017-05-22T10:40:52
oeisdata/seq/A009/A009706.seq
0d3ff2ee414b02dd23dd58efd1ea8280
A009707
Expansion of e.g.f. tan(tan(x)*x) (even powers only).
[ "0", "2", "8", "336", "15616", "1450240", "185032704", "33566984192", "7971973332992", "2424984197529600", "915532582868746240", "420569934453637906432", "230845747512083447021568", "149228982402223336708898816" ]
[ "nonn" ]
17
0
2
[ "A000182", "A003718", "A009707", "A009752", "A024265" ]
null
R. H. Hardin
2017-12-21T17:37:07
oeisdata/seq/A009/A009707.seq
770672f64423604166270416148934cd
A009708
Expansion of tan(tan(x)/cos(x)).
[ "1", "7", "177", "10519", "1108833", "180134183", "41643888145", "12982974409271", "5247381641852609", "2667871676330509895", "1666128949779524612977", "1253728661849677130856279", "1118729647152655182634160673" ]
[ "nonn" ]
15
0
2
null
null
R. H. Hardin
2022-08-28T23:15:42
oeisdata/seq/A009/A009708.seq
e330ced62d381801d08ee55cd268527a
A009709
E.g.f. tan(tan(x)/cosh(x)), odd powers only.
[ "1", "1", "17", "593", "19425", "1598177", "158823537", "20206883505", "3739345763009", "800168319488705", "218377697922437073", "71589148444259595281", "27561852243967184213153", "12547454880768646146119585" ]
[ "nonn" ]
22
1
3
null
null
R. H. Hardin
2014-01-27T09:13:00
oeisdata/seq/A009/A009709.seq
22b0f6798618e5eb3b1093d720a006fb
A009710
E.g.f. tan(tan(x)^2) (even powers only).
[ "0", "2", "16", "512", "34816", "3821312", "618121216", "138682959872", "41171702972416", "15610723195092992", "7357121913006063616", "4217775794187229724672", "2889975739296119171055616", "2332177121915783600628826112", "2189206131249303252650023714816", "2365042784256046151642765393395712" ]
[ "nonn" ]
26
0
2
[ "A009710", "A024290" ]
null
R. H. Hardin
2025-01-04T14:51:10
oeisdata/seq/A009/A009710.seq
89e05fea7433644f8e19b885464f0ee3
A009711
Expansion of e.g.f.: tan(tanh(log(1+x))).
[ "0", "1", "-1", "2", "-6", "16", "0", "-568", "7504", "-78248", "739080", "-6314848", "44072688", "-125928464", "-3754236304", "114500663552", "-2264653307520", "37495468333696", "-536284797406848", "6159440282136320", "-34551694794080000", "-931439976890484224" ]
[ "sign", "easy" ]
12
0
4
null
null
R. H. Hardin
2020-08-30T15:27:32
oeisdata/seq/A009/A009711.seq
3c2445aff1831bc050db9d5f00dfe4ec
A009712
Expansion of tan(tanh(sin(x))).
[ "1", "-1", "-7", "391", "-17263", "680239", "1450569", "-7957325193", "2085950965153", "-451440698199841", "87302333394141977", "-12244874410272223257", "-1227047210877649641679", "2438662572717698729224975" ]
[ "sign" ]
14
0
3
null
null
R. H. Hardin
2017-04-02T12:12:00
oeisdata/seq/A009/A009712.seq
8638c17bba9ffcda157d60ba5d9970cf
A009713
Expansion of tan(tanh(tan(x))).
[ "1", "2", "8", "-176", "-16384", "-969728", "-32455680", "4303626240", "1468506210304", "269552004300800", "24649152071991296", "-7396863878894714880", "-5630959968640999358464", "-2114449853843696991076352" ]
[ "sign" ]
13
0
2
null
null
R. H. Hardin
2017-04-02T12:12:28
oeisdata/seq/A009/A009713.seq
61aa7cc4f4e9acbdcb4a2a7441ffb68b
A009714
a(n) = Product_{i=0..8} floor((n+i)/9).
[ "0", "0", "0", "0", "0", "0", "0", "0", "0", "1", "2", "4", "8", "16", "32", "64", "128", "256", "512", "768", "1152", "1728", "2592", "3888", "5832", "8748", "13122", "19683", "26244", "34992", "46656", "62208", "82944", "110592", "147456", "196608", "262144", "327680", "409600", "512000", "640000", "800000", "1000000", "1250000", "1562500" ]
[ "nonn", "easy" ]
42
0
11
[ "A001017", "A002620", "A006501", "A008233", "A008382", "A008881", "A009641", "A009694", "A009714", "A013667", "A354600" ]
null
N. J. A. Sloane
2024-08-21T12:26:49
oeisdata/seq/A009/A009714.seq
19d62da74529c141a4c78d845b8434b2
A009715
Expansion of tan(tanh(x))*cos(x).
[ "1", "-3", "-3", "273", "-5159", "-62139", "16414101", "-1357293927", "59192332081", "5204089208589", "-1943937262679379", "331586038355507361", "-32236263434125968887", "-1484274347735103183531", "1139055571050751311941445" ]
[ "sign" ]
12
0
2
null
null
R. H. Hardin
2017-04-02T12:13:02
oeisdata/seq/A009/A009715.seq
dd34dfb7194c1bcd58d0b4fcb46e2204
A009716
Expansion of e.g.f. tan(tanh(x))*exp(x).
[ "0", "1", "2", "3", "4", "-3", "-42", "-49", "456", "2905", "10154", "-83589", "-1263668", "-334059", "74121726", "351159815", "-1582556016", "-39776495567", "-396499390126", "2339943411315", "87145255604884", "181395497796525", "-10528569148387290", "-87834301596283969" ]
[ "sign", "easy" ]
14
0
3
null
null
R. H. Hardin
2014-02-09T08:38:46
oeisdata/seq/A009/A009716.seq
0a5688b43119174609d221767896ab66
A009717
Expansion of e.g.f. tan(tanh(x))*sin(x) (even powers only).
[ "0", "2", "-4", "-42", "1336", "-16726", "-1194700", "153304830", "-10698400400", "188012481362", "107922523124588", "-26275693823306202", "3726087789656495272", "-203071274271083537926", "-64313415452872137435484" ]
[ "sign" ]
19
0
2
null
null
R. H. Hardin
2025-03-10T04:50:46
oeisdata/seq/A009/A009717.seq
b2c844f457cc99b63a1b00b1c36d7099
A009718
Expansion of tan(tanh(x))*x.
[ "0", "2", "0", "-48", "896", "-1280", "-1317888", "113985536", "-5662048256", "-173996310528", "103038851481600", "-18151624725757952", "1834297840675848192", "53334014587534573568", "-66117477689491873333248" ]
[ "sign" ]
11
0
2
null
null
R. H. Hardin
2017-04-02T12:10:28
oeisdata/seq/A009/A009718.seq
f645eb46829dab4bde217b009f78574b
A009719
Expansion of tan(tanh(x))/cos(x).
[ "1", "3", "17", "371", "11329", "398211", "31717649", "2487281075", "257775723265", "40422383525763", "6249491749613201", "1324448178268807283", "327217658581539104833", "91010297536273890164739", "29953128179590939779490961", "11561544419017955546723388851" ]
[ "nonn" ]
12
0
2
null
null
R. H. Hardin
2014-01-27T09:13:00
oeisdata/seq/A009/A009719.seq
f1db9be5625e41868591d1ebca8e778f
A009720
Expansion of tan(tanh(x)*cos(x)).
[ "1", "-3", "-43", "2009", "6313", "-9872907", "760322045", "105243758801", "-41122814903471", "1873399639193325", "3032918686052577317", "-1060046322104258754871", "-196239553045718536023047", "335369132729230015620066021" ]
[ "sign" ]
14
0
2
null
null
R. H. Hardin
2020-03-20T18:48:11
oeisdata/seq/A009/A009720.seq
11c84f2a2b9c31abf49621ebbf924b77
A009721
Expansion of e.g.f.: tan(tanh(x)*exp(x)).
[ "0", "1", "2", "3", "20", "157", "902", "6895", "77352", "837145", "9239882", "124480059", "1864519868", "28461793141", "470175087566", "8596601614567", "165789417707088", "3347308657310641", "72262366126097810", "1655981959056540147", "39676337445225379172", "996780437366905850317" ]
[ "nonn", "easy" ]
12
0
3
null
null
R. H. Hardin
2016-09-26T11:38:18
oeisdata/seq/A009/A009721.seq
b30e2e4592accdbcf3d489392b16a497
A009722
Expansion of tan(tanh(x)*tan(x))/2.
[ "1", "176", "570496", "9223556096", "460993706622976", "55266063875773300736", "13556412676746128524312576", "6098119622978353294582319415296", "4642750780653941150969313976486199296" ]
[ "nonn" ]
12
0
2
[ "A009722", "A012669" ]
null
R. H. Hardin
2017-10-24T18:15:35
oeisdata/seq/A009/A009722.seq
5a33b4e92a9e2f9d7b193b781e77c9c3
A009723
Expansion of tan(tanh(x)/cos(x)).
[ "1", "3", "57", "1995", "128881", "12775059", "1796958633", "342118793307", "84276974508769", "26141579246291235", "9956883572644073241", "4570240365824839488747", "2487549038143714062879313", "1584207614996350912703688627" ]
[ "nonn" ]
14
0
2
null
null
R. H. Hardin
2024-11-28T03:31:54
oeisdata/seq/A009/A009723.seq
d163d6e7fbb22100bd21c9dfdafea3aa
A009724
Denominators of Taylor series for 1/(sin x + tan x).
[ "2", "24", "720", "120960", "1209600", "95800320", "1307674368000", "597793996800", "10670622842880000", "10218188434341888000", "802857662698291200000", "56404400157567221760000", "1693824136731743669452800000" ]
[ "nonn", "frac", "changed" ]
5
0
1
[ "A008961", "A009724" ]
null
N. J. A. Sloane
2025-07-08T01:26:09
oeisdata/seq/A009/A009724.seq
695efe9412fc522fb4a3b7a15759882a
A009725
Expansion of e.g.f.: tan(x)*(1+x).
[ "0", "1", "2", "2", "8", "16", "96", "272", "2176", "7936", "79360", "353792", "4245504", "22368256", "313155584", "1903757312", "30460116992", "209865342976", "3777576173568", "29088885112832", "581777702256640", "4951498053124096", "108932957168730112", "1015423886506852352", "24370173276164456448" ]
[ "nonn", "easy" ]
15
0
3
[ "A000182", "A009725", "A009752" ]
null
R. H. Hardin
2020-10-29T17:30:02
oeisdata/seq/A009/A009725.seq
e5e1688eadc0653d2123bf5c7f150e3a
A009726
Expansion of tan(x)*cos(log(1+x)).
[ "0", "1", "0", "-1", "12", "-54", "360", "-2094", "15568", "-113516", "979200", "-8587668", "84989520", "-863430840", "9562970144", "-108058865368", "1285366485120", "-15130564865136", "174638241040896", "-1701739763904144", "7392841627579840", "326394843481495456" ]
[ "sign", "easy" ]
13
0
5
null
null
R. H. Hardin
2015-06-22T22:51:23
oeisdata/seq/A009/A009726.seq
1d132073cc93669598a07e30472b7eaa
A009727
Expansion of tan(x)*cos(sin(x)).
[ "1", "-1", "21", "27", "6121", "153559", "13064637", "996722035", "114653539281", "15657589156655", "2678537704263781", "548432789294290763", "133426766351448919481", "37955932970963263679495", "12491453691407386059683341" ]
[ "sign" ]
12
0
3
null
null
R. H. Hardin
2017-04-02T12:06:53
oeisdata/seq/A009/A009727.seq
327f2e5ad10534dc1b0a87bbd1051f6d
A009728
Expansion of tan(x)*cos(sinh(x)).
[ "1", "-1", "-19", "-253", "-5447", "-225721", "-14615899", "-1266041845", "-140130487823", "-19419956236657", "-3304321034706211", "-677542297845085165", "-164755897732586842199", "-46874838119958767992105" ]
[ "sign" ]
12
0
3
null
null
R. H. Hardin
2017-04-02T12:14:25
oeisdata/seq/A009/A009728.seq
cbbcb6b404f93feb36cd950c90a09200
A009729
Expansion of tan(x)*cos(tan(x)).
[ "1", "-1", "-39", "-1233", "-50831", "-2696321", "-173033847", "-12037460945", "-631883857695", "72323545938047", "51175586766916153", "20871009809650906031", "8144386597628284974161", "3320626270273875548979455" ]
[ "sign" ]
12
0
3
null
null
R. H. Hardin
2017-04-02T12:08:01
oeisdata/seq/A009/A009729.seq
3993c8311f72375fab323e3c53a6bde7
A009730
Expansion of tan(x)*cos(tanh(x)).
[ "1", "-1", "41", "-673", "41425", "-2148961", "225227705", "-23880701185", "3905967813793", "-689701934465089", "163751563593866057", "-42927084558629732833", "14006383316589639761521", "-5072190213708628462141345" ]
[ "sign" ]
12
0
3
null
null
R. H. Hardin
2017-04-02T12:07:15
oeisdata/seq/A009/A009730.seq
b9aacea8476fb64b0932758316e5d206
A009731
Expansion of tan(x)*cosh(log(1+x)).
[ "0", "1", "0", "5", "-12", "96", "-480", "3968", "-29568", "283840", "-2759040", "31139712", "-369431040", "4852567552", "-67622790144", "1018594276352", "-16267048304640", "277008597516288", "-4982377179119616", "94730142262034432", "-1894021067538432000" ]
[ "sign", "easy" ]
16
0
4
null
null
R. H. Hardin
2018-05-05T15:27:12
oeisdata/seq/A009/A009731.seq
71b0889da00e95c931f886a865436705
A009732
Expansion of tan(x)*cosh(sin(x)) (odd powers only).
[ "1", "5", "21", "377", "13129", "537965", "34399197", "2946509729", "323564702737", "44888950379477", "7640931012615717", "1566846818139059657", "381021443277747203161", "108403869650402266171709" ]
[ "nonn" ]
12
1
2
null
null
R. H. Hardin
2015-01-23T14:55:43
oeisdata/seq/A009/A009732.seq
19923eeee6b9cedb338140fa381436e4
A009733
Expansion of tan(x)*cosh(tan(x)).
[ "1", "5", "81", "2477", "120481", "8496245", "817734321", "102873611549", "16372688411713", "3213260867586149", "761792907575450385", "214507625428065409805", "70732793117238811066081", "26987583518243293948764629" ]
[ "nonn" ]
22
0
2
null
null
R. H. Hardin
2017-03-19T00:58:31
oeisdata/seq/A009/A009733.seq
55855cf877782e5924e8c495aa503173
A009734
Days in a one-month gym membership starting at n-th day of year [ days from Jan 01 to Feb 01, Jan 02 to Feb 02, ... ].
[ "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "31", "30", "29", "28", "28", "28", "28", "28", "28", "28", "28", "28", "28", "28", "28", "28", "28", "28", "28", "28" ]
[ "nonn" ]
6
1
1
null
null
N. J. A. Sloane
2021-12-27T21:36:11
oeisdata/seq/A009/A009734.seq
11e2550b02afd7692284588102f55f8c
A009735
Expansion of tan(x)*exp(sin(x)).
[ "0", "1", "2", "5", "8", "21", "48", "377", "1728", "13129", "61184", "537965", "3107840", "34399197", "235484928", "2946509729", "22794670080", "323564702737", "2824580218880", "44888950379477", "435346731352064", "7640931012615717", "81496599519363072" ]
[ "nonn", "easy" ]
12
0
3
null
null
R. H. Hardin
2015-01-23T14:59:30
oeisdata/seq/A009/A009735.seq
346b7fa74bcd14c80eb64a60a148c853
A009736
Expansion of e.g.f.: tan(x)*exp(sinh(x)).
[ "0", "1", "2", "5", "16", "61", "248", "1217", "6336", "38137", "242464", "1753245", "13219328", "112141173", "982066816", "9583252569", "95757641728", "1057866255601", "11884764271104", "146689651631285", "1830773338714112", "24972471277262509" ]
[ "nonn", "easy" ]
11
0
3
null
null
R. H. Hardin
2018-12-30T14:50:51
oeisdata/seq/A009/A009736.seq
e7813a7b32060bd17e0ba1b32502cb3e
A009737
Expansion of e.g.f. tan(x)*exp(tan(x)).
[ "0", "1", "2", "5", "20", "81", "438", "2477", "16680", "120481", "973034", "8496245", "80252732", "817734321", "8859646110", "102873611549", "1258403748432", "16372688411713", "223202277906386", "3213260867586149", "48295209177888356", "761792907575450385", "12510350648500199814", "214507625428065409805" ]
[ "nonn", "easy" ]
38
0
3
[ "A008277", "A009737", "A052852", "A059419" ]
null
R. H. Hardin
2025-04-16T09:01:29
oeisdata/seq/A009/A009737.seq
e9066533fb58240b97441facde7b03dd
A009738
Expansion of e.g.f.: tan(x)*exp(tanh(x)).
[ "0", "1", "2", "5", "4", "1", "38", "797", "3144", "1345", "-49526", "785685", "10349516", "33807489", "-460714706", "492925869", "91894143376", "846642059905", "-6277401116142", "-79077949115227", "1574511126111380", "36210294463841281", "-81923064774031562" ]
[ "sign", "easy" ]
13
0
3
null
null
R. H. Hardin
2020-02-20T19:02:43
oeisdata/seq/A009/A009738.seq
d92660fa7387d025413a21ef90a95c78
A009739
E.g.f. tan(x)*exp(x).
[ "0", "1", "2", "5", "12", "41", "142", "685", "3192", "19921", "116282", "887765", "6219972", "56126201", "458790022", "4776869245", "44625674352", "526589630881", "5534347077362", "72989204937125", "852334810990332", "12424192360405961", "159592488559874302", "2547879762929443405", "35703580441464231912" ]
[ "nonn", "easy" ]
36
0
3
[ "A003701", "A009739" ]
null
R. H. Hardin
2024-05-12T17:44:33
oeisdata/seq/A009/A009739.seq
ea9bd4149003ed5d7376ab86c05ff7d9
A009740
Expansion of tan(x)*sin(sin(x)).
[ "0", "2", "0", "88", "704", "50464", "2089216", "173223040", "16120801280", "2032098365952", "311227464130560", "58380271774087168", "13053338796582584320", "3439281363674203889664", "1053729213379599495528448" ]
[ "nonn" ]
9
0
2
null
null
R. H. Hardin
2014-01-27T09:13:00
oeisdata/seq/A009/A009740.seq
93cc8a60d862b18d1e819f42dcd777da
A009741
Expansion of tan(x)*sin(sinh(x)).
[ "0", "2", "8", "48", "832", "34304", "1992704", "149382912", "14491045888", "1792468533248", "275860960329728", "51650706246205440", "11555611726669152256", "3044203421408056377344", "932732257836665756450816" ]
[ "nonn" ]
14
0
2
null
null
R. H. Hardin
2025-06-08T10:34:41
oeisdata/seq/A009/A009741.seq
eff98eece2981dd0cbb3c92cfb0a4dff
A009742
Expansion of tan(x)*sin(tan(x)).
[ "0", "2", "12", "118", "536", "-116246", "-16364252", "-2126232482", "-306170653648", "-50385573229614", "-9466502482856388", "-2005520046878244794", "-469486134481963893176", "-117587958866855549958726" ]
[ "sign" ]
14
0
2
null
null
R. H. Hardin
2017-04-02T12:07:39
oeisdata/seq/A009/A009742.seq
b5efddc5ea62471eb221b53368408680
A009743
Expansion of e.g.f. tan(x)*sin(tanh(x)), even powers only.
[ "0", "2", "-4", "198", "-4040", "316874", "-19176268", "2374489614", "-282825044624", "52279148694674", "-10130169154611604", "2647521503418566742", "-750173159912329738328", "264926794785670147533914", "-102608322417098838227114716", "47204299500814419684790058910" ]
[ "sign" ]
22
0
2
null
null
R. H. Hardin
2018-03-05T04:57:10
oeisdata/seq/A009/A009743.seq
e837bbb14d5a60ed6b83772824693617
A009744
Expansion of e.g.f. tan(x)*sin(x) (even powers only).
[ "0", "2", "4", "62", "1384", "50522", "2702764", "199360982", "19391512144", "2404879675442", "370371188237524", "69348874393137902", "15514534163557086904", "4087072509293123892362", "1252259641403629865468284", "441543893249023104553682822", "177519391579539289436664789664" ]
[ "nonn", "easy" ]
42
0
2
[ "A009744", "A029582", "A099023" ]
null
R. H. Hardin
2021-06-13T16:17:00
oeisdata/seq/A009/A009744.seq
7b6fbe03ea815d12f3d8c9fea740b626
A009745
Expansion of e.g.f tan(x)*sinh(sin(x)), even powers only.
[ "0", "2", "8", "48", "1728", "61184", "3107840", "235484928", "22794670080", "2824580218880", "435346731352064", "81496599519363072", "18232624878580924416", "4803148337754795474944", "1471655716879344564174848" ]
[ "nonn" ]
19
0
2
null
null
R. H. Hardin
2018-02-13T07:30:09
oeisdata/seq/A009/A009745.seq
3083bc285c83f480d2ead1d36e9e1920
A009746
Expansion of e.g.f. tan(x)*sinh(tan(x)), even powers only.
[ "0", "2", "20", "438", "16680", "973034", "80252732", "8859646110", "1258403748432", "223202277906386", "48295209177888356", "12510350648500199814", "3820068667490198035320", "1357281805972469318509754" ]
[ "nonn" ]
17
0
2
null
null
R. H. Hardin
2018-02-13T05:58:01
oeisdata/seq/A009/A009746.seq
87f991c69882be36e22e384c521e7c22
A009747
E.g.f. tan(x)*sinh(x) (even powers only).
[ "0", "2", "12", "142", "3192", "116282", "6219972", "458790022", "44625674352", "5534347077362", "852334810990332", "159592488559874302", "35703580441464231912", "9405575479317650316842", "2881823738166957609703092", "1016124476854507687644180982", "408525180980254462140262747872", "185768439922172208338308590282722" ]
[ "nonn" ]
24
0
2
[ "A009739", "A009747", "A062161" ]
null
R. H. Hardin
2017-04-12T23:09:13
oeisdata/seq/A009/A009747.seq
ac2c37d01272d00fbad57266ab5b895a
A009748
Expansion of e.g.f. tan(x)*tan(sin(x)), even powers only.
[ "0", "2", "12", "118", "1880", "63274", "4010212", "332200222", "32100167600", "3749943333714", "559340287979196", "106082041802123974", "24279253761809428744", "6438550081937270152314", "1958379738778789723419028" ]
[ "nonn" ]
16
0
2
null
null
R. H. Hardin
2018-02-13T04:15:27
oeisdata/seq/A009/A009748.seq
f250bd92bad6b36f088f63feae84d955
A009749
Expansion of e.g.f. tan(x)*tan(sinh(x)), even powers only.
[ "0", "2", "20", "438", "17128", "1048874", "92901500", "11253292638", "1788824156368", "361485870772562", "90552477245862884", "27548125826770266630", "10006652421435397898680", "4278388540712731489923194", "2127009769120013449890941516", "1216712823253198094167750050990" ]
[ "nonn" ]
24
0
2
null
null
R. H. Hardin
2018-02-13T04:06:16
oeisdata/seq/A009/A009749.seq
6296719aa1eb66f323eb5cf7e9b11be2
A009750
Expansion of e.g.f. tan(x)*tan(tan(x)), even powers only.
[ "0", "2", "24", "688", "36992", "3234304", "418499584", "75077748736", "17816420974592", "5399699170000896", "2034070241589854208", "932012713402719797248", "510363278595553899839488", "329128604050609873851777024", "246881504912875480553409740800", "213119748914997017969817425018880" ]
[ "nonn" ]
21
0
2
null
null
R. H. Hardin
2018-02-13T04:10:20
oeisdata/seq/A009/A009750.seq
41be702e013a0c48b99b32defdf12686
A009751
Expansion of e.g.f. tan(x)*tan(tanh(x)), even powers only.
[ "0", "2", "8", "48", "2176", "72704", "2567168", "320538624", "23648567296", "2869964963840", "550752408829952", "81617924549246976", "20769854695130791936", "5449382125873097867264", "1599364150040158382587904", "573113440182309263706685440", "238664184536900397410937733120" ]
[ "nonn" ]
25
0
2
null
null
R. H. Hardin
2018-02-13T04:14:54
oeisdata/seq/A009/A009751.seq
c15243c7994372923661fb39232f369c
A009752
Expansion of e.g.f. tan(x)*x (even powers only).
[ "0", "2", "8", "96", "2176", "79360", "4245504", "313155584", "30460116992", "3777576173568", "581777702256640", "108932957168730112", "24370173276164456448", "6419958484945407574016", "1967044844910430876860416", "693575525634287935244206080", "278846808228005417477465964544", "126799861926498005417315327279104" ]
[ "nonn" ]
64
0
2
[ "A009725", "A009752", "A024255", "A065619", "A099028", "A110501", "A117513", "A232933" ]
null
R. H. Hardin
2024-08-04T01:26:20
oeisdata/seq/A009/A009752.seq
4fbae35893f53822b1a8fee1db1aa8b0
A009753
Expansion of tan(x)/(1+x).
[ "0", "1", "-2", "8", "-32", "176", "-1056", "7664", "-61312", "559744", "-5597440", "61925632", "-743107584", "9682766848", "-135558735872", "2035284795392", "-32564556726272", "553807329689600", "-9968531934412800", "189431195638956032", "-3788623912779120640" ]
[ "sign", "easy" ]
26
0
3
[ "A009753", "A049471" ]
null
R. H. Hardin
2018-02-13T03:12:34
oeisdata/seq/A009/A009753.seq
f37599df8e82187780fb3944a53b9756
A009754
Expansion of e.g.f. tan(x)/cos(log(1+x)).
[ "0", "1", "0", "5", "-12", "116", "-720", "7048", "-67648", "789124", "-9839520", "137625652", "-2079277200", "34199202272", "-604204537664", "11450703405872", "-231315430836480", "4966162863717008", "-112867805704455936", "2707812372195278800", "-68377223974957136320", "1812971997782789669056" ]
[ "sign", "easy" ]
19
0
4
null
null
R. H. Hardin
2018-02-13T02:55:27
oeisdata/seq/A009/A009754.seq
7cd849265480267a136662076299ebdf
A009755
Expansion of e.g.f. tan(x)/cos(sin(x)), odd powers only.
[ "1", "5", "41", "517", "12145", "582405", "42317081", "3759817029", "398983432289", "52888501801733", "8949712747169929", "1870731232726437509", "461089997723562652881", "130976488217164121240069", "42778996119131902973150329", "16067412656453434757397261253", "6888568425518076742074506305217" ]
[ "nonn" ]
20
0
2
null
null
R. H. Hardin
2018-02-15T15:38:13
oeisdata/seq/A009/A009755.seq
fefd5abba037ab651ea9e19aa69c5139
A009756
Expansion of e.g.f. tan(x)/cos(sinh(x)), odd powers only.
[ "1", "5", "81", "2477", "124513", "9330485", "977555697", "136714167389", "24639427576513", "5566295195214053", "1541371979776273041", "513628137925507217549", "202807061788804647209761", "93651309146079155756811029", "50008862201366935181522322225", "30579839563414166184921341412413" ]
[ "nonn" ]
17
1
2
null
null
R. H. Hardin
2018-02-13T02:53:46
oeisdata/seq/A009/A009756.seq
2cc4c8b1618d15c14d9d7a49ed762753
A009757
Expansion of e.g.f. tan(x)/cos(tan(x)), odd powers only.
[ "1", "5", "101", "4297", "311017", "34201485", "5316286925", "1110355789329", "300067100236625", "101902284312853013", "42484968788050104757", "21335944225303831614809", "12704193401200858575308601", "8850034105543023432746843549", "7130974518135579153768747620893" ]
[ "nonn" ]
16
0
2
null
null
R. H. Hardin
2018-02-13T03:13:07
oeisdata/seq/A009/A009757.seq
250d6229621f495d9566e2f6c0283d36
A009758
Expansion of e.g.f. tan(x)/cos(tanh(x)) (odd powers only).
[ "1", "5", "21", "377", "17161", "442925", "38819613", "3394928609", "307139569297", "50204583973973", "8330000263573413", "1585633516380134729", "416021432525199858841", "118441213090527475221629", "35638847609472720069131181", "15336745055032862739772925873" ]
[ "nonn" ]
20
1
2
null
null
R. H. Hardin
2018-02-13T02:54:13
oeisdata/seq/A009/A009758.seq
f49970e16357337534d92134072781da
A009759
Expansion of (3 - 21*x + 4*x^2)/((x-1)*(x^2 - 6*x + 1)).
[ "-3", "0", "17", "116", "693", "4056", "23657", "137900", "803757", "4684656", "27304193", "159140516", "927538917", "5406093000", "31509019097", "183648021596", "1070379110493", "6238626641376", "36361380737777", "211929657785300", "1235216565974037" ]
[ "sign" ]
41
0
1
[ "A001652", "A001653", "A001844", "A008844", "A009759" ]
null
N. J. A. Sloane, Nick Baxter (nick(AT)visigenic.com)
2022-09-08T08:44:37
oeisdata/seq/A009/A009759.seq
9d3cea20db60944100b977c9f855fde8
A009760
Expansion of e.g.f. tan(x)/cosh(log(1+x)).
[ "0", "1", "0", "-1", "12", "-34", "120", "146", "-2352", "23848", "-53280", "-371768", "12223200", "-107535440", "706340544", "2599870352", "-95898673920", "1486560431744", "-8308014488064", "-67260673442176", "3505513923832320", "-54539552924497664", "499029405102412800" ]
[ "sign", "easy" ]
27
0
5
null
null
R. H. Hardin
2018-02-13T02:53:59
oeisdata/seq/A009/A009760.seq
bd0c44ccee41af0b2dcfa438f27af239
A009761
Expansion of e.g.f. tan(x)/cosh(sin(x)), odd powers only.
[ "1", "-1", "41", "-673", "45457", "-2687521", "313663481", "-40066499905", "7520482865953", "-1641264931094209", "461539011599816393", "-151789031893211252065", "60285747097883123598001", "-27699643878162362856467425", "14824242336112602473956467353", "-9047638464118811277582522202369" ]
[ "sign" ]
18
1
3
null
null
R. H. Hardin
2018-02-13T02:52:27
oeisdata/seq/A009/A009761.seq
229164c5589736e73724069f4bf9fbf8
A009762
Expansion of tan(x)/cosh(tan(x)).
[ "1", "-1", "-19", "-253", "-1415", "164999", "15064037", "949320395", "44870780017", "1646995429391", "436144142262365", "216025221401835155", "72522443306062946281", "18012134571875515731095", "2730160186702754555432789" ]
[ "sign" ]
13
0
3
null
null
R. H. Hardin
2018-11-20T12:16:00
oeisdata/seq/A009/A009762.seq
3d50a0626572fc6c64519c97f78df45c
A009763
a(n) is (n+1)!*(n+2)! times coefficient of x^n in (log(1-x))^-1.
[ "1", "1", "6", "76", "1620", "51780", "2310000", "136898496", "10393064640", "982930939200", "113269208976000", "15619762139984640", "2539231615282602240", "480507998223110457600", "104704722014993388288000", "26027184253285000629043200", "7320192187611052189440000000", "2312657526289162442074933248000" ]
[ "nonn" ]
29
0
3
[ "A001620", "A002206", "A002207", "A009763", "A061444" ]
null
Philippe Deléham, Apr 14 1997
2025-06-23T05:33:48
oeisdata/seq/A009/A009763.seq
d9523f9739552d1134a9a99cda31ff45
A009764
Expansion of e.g.f. tan(x)^2 (even powers only).
[ "0", "2", "16", "272", "7936", "353792", "22368256", "1903757312", "209865342976", "29088885112832", "4951498053124096", "1015423886506852352", "246921480190207983616", "70251601603943959887872", "23119184187809597841473536", "8713962757125169296170811392", "3729407703720529571097509625856" ]
[ "nonn", "easy" ]
51
0
2
[ "A000182", "A009764", "A024283" ]
null
R. H. Hardin
2025-05-16T06:18:35
oeisdata/seq/A009/A009764.seq
e74b23653c7929b367c7445f2f2095ea
A009765
Expansion of tan(x/cos(x)).
[ "1", "5", "101", "4689", "381769", "47849053", "8532452397", "2051184222377", "639121206054545", "250473754883360181", "120568689462321176053", "69926680208791530760705", "48091629862193464534126041" ]
[ "nonn" ]
13
0
2
null
null
R. H. Hardin
2014-01-27T09:13:01
oeisdata/seq/A009/A009765.seq
45d627bc12c617cf55cada8924cdce40
A009766
Catalan's triangle T(n,k) (read by rows): each term is the sum of the entries above and to the left, i.e., T(n,k) = Sum_{j=0..k} T(n-1,j).
[ "1", "1", "1", "1", "2", "2", "1", "3", "5", "5", "1", "4", "9", "14", "14", "1", "5", "14", "28", "42", "42", "1", "6", "20", "48", "90", "132", "132", "1", "7", "27", "75", "165", "297", "429", "429", "1", "8", "35", "110", "275", "572", "1001", "1430", "1430", "1", "9", "44", "154", "429", "1001", "2002", "3432", "4862", "4862", "1", "10", "54", "208", "637", "1638", "3640", "7072", "11934" ]
[ "nonn", "tabl", "nice" ]
465
0
5
[ "A000108", "A000245", "A000344", "A000588", "A000957", "A000958", "A000984", "A001392", "A001405", "A002057", "A003517", "A003518", "A003519", "A008315", "A009766", "A014495", "A026726", "A028364", "A030237", "A030238", "A033184", "A047072", "A053121", "A059365", "A062103", "A062745", "A081696", "A099039", "A106566", "A130020", "A140344", "A165407", "A194124", "A214292" ]
null
Wouter Meeussen
2025-04-18T08:53:00
oeisdata/seq/A009/A009766.seq
119bd49c067c0d534ca2ed180d18f3f5
A009767
Expansion of e.g.f. tan(x^2)/2 in odd powers of x^2.
[ "1", "120", "241920", "2352430080", "70008319180800", "4981141593037209600", "724337282211580477440000", "193082117289145211195228160000", "87097726450270042926290105794560000", "62534967622066352401869341275560345600000", "68083350599600621793249530921443071413452800000" ]
[ "nonn" ]
16
0
2
[ "A000182", "A009767", "A024348" ]
null
R. H. Hardin
2025-01-12T12:11:02
oeisdata/seq/A009/A009767.seq
5ec6e1033a53d83616a4abac296410d0
A009768
Expansion of e.g.f. tanh(exp(x)*x).
[ "0", "1", "2", "1", "-20", "-159", "-594", "2465", "69560", "665665", "1593850", "-67177791", "-1413216540", "-12990964063", "64480265318", "4811655319393", "90259507840240", "540272971703937", "-20890652777843598", "-798235260367432831", "-12766815370452348580" ]
[ "sign", "easy" ]
20
0
3
[ "A009121", "A009565", "A009635", "A009768", "A216401" ]
null
R. H. Hardin
2023-06-03T11:17:45
oeisdata/seq/A009/A009768.seq
1fc2b52a0ec7207671d77ffab3c89c72
A009769
Expansion of tanh(log(1+1/x)).
[ "1", "0", "-4", "24", "-96", "0", "5760", "-80640", "645120", "0", "-116121600", "2554675200", "-30656102400", "0", "11158821273600", "-334764638208000", "5356234211328000", "0", "-3278015337332736000", "124564582818643968000", "-2491291656372879360000", "0" ]
[ "sign", "easy" ]
17
0
3
[ "A009014", "A009116", "A009769" ]
null
R. H. Hardin
2014-03-09T04:49:07
oeisdata/seq/A009/A009769.seq
fd330c91e74c40a85f2fba921b01826d
A009770
Expansion of tanh(log(1+log(1+x))).
[ "0", "1", "-2", "5", "-11", "-16", "656", "-9066", "107766", "-1222110", "13400544", "-137979810", "1199045706", "-4684987308", "-153270916044", "6326220565560", "-169975260810216", "3943603406845656", "-83676044951653392", "1624994111075924376" ]
[ "sign", "easy" ]
13
0
3
null
null
R. H. Hardin
2015-06-22T22:43:28
oeisdata/seq/A009/A009770.seq
5b24802adbabca9a477978541f296818
A009771
Expansion of tanh(log(1+sin(x))).
[ "0", "1", "-1", "-1", "10", "-29", "-46", "1049", "-5480", "-6299", "367784", "-2993101", "-433520", "302131831", "-3539197936", "4643279549", "477914976640", "-7698953963639", "24464869564544", "1282442213912999", "-27686771463968000", "150369505621009291" ]
[ "sign", "easy" ]
10
0
5
null
null
R. H. Hardin
2015-06-22T22:43:12
oeisdata/seq/A009/A009771.seq
04f731ed8977af0e5c5f12163c5ff017
A009772
Expansion of tanh(log(1+sinh(x))).
[ "0", "1", "-1", "1", "2", "-29", "194", "-1049", "4472", "-6299", "-171736", "2993101", "-34111408", "302131831", "-1763868016", "-4643279549", "370023946112", "-7698953963639", "115221639807104", "-1282442213912999", "6786946897932032", "150369505621009291" ]
[ "sign", "easy" ]
12
0
5
null
null
R. H. Hardin
2015-06-22T22:43:00
oeisdata/seq/A009/A009772.seq
ea827be79401c38a38b9eb00c9841666
A009773
Expansion of tanh(log(1+tan(x))).
[ "0", "1", "-1", "2", "-2", "-14", "194", "-1828", "15688", "-130664", "1037864", "-7421008", "36772528", "153779536", "-9259356016", "209102239712", "-3831278863232", "63200892286336", "-954398377549696", "12766540334296832", "-131022499047886592" ]
[ "sign", "easy" ]
12
0
4
null
null
R. H. Hardin
2015-06-22T22:42:50
oeisdata/seq/A009/A009773.seq
ca945254ee16bee93f5f483ab9067b8d
A009774
Expansion of e.g.f.: tanh(log(1+tanh(x))).
[ "0", "1", "-1", "-2", "14", "-14", "-286", "1828", "3464", "-130664", "619304", "7421008", "-128214736", "153779536", "18052524944", "-209102239712", "-1370716606336", "63200892286336", "-414519986847616", "-12766540334296832", "303340786629265664" ]
[ "sign", "easy" ]
14
0
4
null
null
R. H. Hardin
2015-06-22T22:42:35
oeisdata/seq/A009/A009774.seq
1471edddb6f9df6c8d086bcab2f66319
A009775
Exponential generating function is tanh(log(1+x)).
[ "0", "1", "-1", "0", "6", "-30", "90", "0", "-2520", "22680", "-113400", "0", "7484400", "-97297200", "681080400", "0", "-81729648000", "1389404016000", "-12504636144000", "0", "2375880867360000", "-49893498214560000", "548828480360160000", "0", "-151476660579404160000" ]
[ "sign", "easy" ]
35
0
5
[ "A007019", "A007415", "A007452", "A009775", "A046979", "A052277", "A092820", "A217260" ]
null
R. H. Hardin
2017-09-16T03:37:27
oeisdata/seq/A009/A009775.seq
a515b208b4e7bd30cda744732437ab36
A009776
E.g.f.: tanh(log(1+x))*cos(x).
[ "0", "1", "-1", "-3", "12", "-25", "-15", "623", "-4592", "18909", "17595", "-1233551", "13641276", "-81119597", "-105681667", "10102782675", "-148962722880", "1158387845177", "1940315387607", "-234950313889819", "4330346354150860", "-41597707520306049", "-85160442362115351" ]
[ "sign", "easy" ]
15
0
4
null
null
R. H. Hardin
2012-09-21T11:28:31
oeisdata/seq/A009/A009776.seq
01d151e82ba21205a309c6a5d4351cfd
A009777
E.g.f. tanh(log(1+x))*cosh(x).
[ "0", "1", "-1", "3", "0", "-25", "165", "-623", "392", "18909", "-206685", "1233551", "-1161336", "-81119597", "1241356025", "-10102782675", "12681799920", "1158387845177", "-22791296600793", "234950313889819", "-368659923645520", "-41597707520306049" ]
[ "sign", "easy" ]
15
0
4
null
null
R. H. Hardin
2017-04-02T12:23:31
oeisdata/seq/A009/A009777.seq
02f48b35b7a453726d9687d49c0cb90b
A009778
Expansion of e.g.f.: tanh(log(1+x))*exp(x).
[ "0", "1", "1", "0", "4", "-5", "-9", "196", "-1280", "4509", "12565", "-386144", "3804516", "-19339385", "-75459461", "3162527460", "-41545303904", "276166431961", "1385435722185", "-73547738586656", "1207721984518180", "-9917136571683789", "-60806773846655969" ]
[ "sign", "easy" ]
12
0
5
null
null
R. H. Hardin
2015-11-26T08:53:27
oeisdata/seq/A009/A009778.seq
d004ed3161b8d78e5ac80c27d77a12ba
A009779
Expansion of e.g.f.: tanh(log(1+x))*log(1+x).
[ "0", "0", "2", "-6", "14", "-20", "-36", "336", "720", "-38016", "524160", "-5448960", "50388480", "-465903360", "5010888960", "-69353625600", "1155961497600", "-20593469030400", "370356373094400", "-6695551947571200", "124010190839808000", "-2408196729028608000" ]
[ "sign", "easy" ]
17
0
3
null
null
R. H. Hardin
2020-08-26T15:31:53
oeisdata/seq/A009/A009779.seq
5b1381d900b333f73c17c7296a866d57
A009780
Expansion of tanh(log(1+x))/cos(x).
[ "0", "1", "-1", "3", "0", "-5", "105", "-203", "392", "16245", "-117765", "957671", "-385176", "-34555105", "764774101", "-4852910775", "9796998000", "823102605865", "-13347886241385", "158552006816779", "-178014612138640", "-21779819623624125", "605833151606624865" ]
[ "sign", "easy" ]
10
0
4
null
null
R. H. Hardin
2015-06-22T22:41:15
oeisdata/seq/A009/A009780.seq
4243d9247c58393dcb06e3f305d4c281
A009781
Expansion of e.g.f.: tanh(log(1+x))/cosh(x).
[ "0", "1", "-1", "-3", "12", "-5", "-75", "203", "-1232", "16245", "-44685", "-957671", "11106876", "-34555105", "-281002631", "4852910775", "-67849574400", "823102605865", "-1467960664185", "-158552006816779", "2993025524196940", "-21779819623624125" ]
[ "sign", "easy" ]
17
0
4
null
null
R. H. Hardin
2015-06-22T22:40:56
oeisdata/seq/A009/A009781.seq
51c488a74ca346eba66c9afc5821d2d0
A009782
E.g.f.: expansion of tanh(log(1+x))/exp(x).
[ "0", "1", "-3", "6", "-4", "-45", "339", "-1442", "2064", "33309", "-425935", "2853246", "-6127188", "-142899809", "2558171511", "-23368092810", "66908903744", "2040609258393", "-46968028923771", "543448366366294", "-1945041831809220", "-73278278468928309" ]
[ "sign", "easy" ]
14
0
3
null
null
R. H. Hardin
2015-06-22T22:39:54
oeisdata/seq/A009/A009782.seq
9eb16adc14939fe60eb08f89b35d6faf
A009783
Expansion of e.g.f.: tanh(log(1+x)*cos(x)).
[ "0", "1", "-1", "-3", "12", "15", "-375", "819", "13888", "-108483", "-551925", "13545961", "-22418484", "-1621656517", "14484838277", "186206989903", "-4523278283040", "-3719219044807", "1200472177117815", "-10141780669451755", "-290942811953148500" ]
[ "sign", "easy" ]
15
0
4
null
null
R. H. Hardin
2021-06-30T18:43:31
oeisdata/seq/A009/A009783.seq
8d0de0d2bbfb48e327ad362cd20a4b28
A009784
Expansion of tanh(log(1+x)*cosh(x)).
[ "0", "1", "-1", "3", "0", "-65", "525", "-3619", "15512", "51549", "-2308365", "37073399", "-417301896", "2878576779", "13832070161", "-1001340728543", "23330589314640", "-373263648419975", "3611687964249159", "21971926549737643", "-2211581913138852400" ]
[ "sign", "easy" ]
19
0
4
null
null
R. H. Hardin
2015-06-22T22:39:41
oeisdata/seq/A009/A009784.seq
b0e1df14d5065f435469d69c9fe5e897
A009785
Expansion of tanh(log(1+x)*exp(x)).
[ "0", "1", "1", "0", "-12", "-45", "-65", "1400", "12096", "52269", "-469307", "-8565656", "-73323052", "223125903", "11882866931", "176275489312", "328262199968", "-26579607201031", "-672646430878551", "-4665154122148880", "76898559105113236", "3784100596619704043" ]
[ "sign", "easy" ]
12
0
5
null
null
R. H. Hardin
2018-09-14T12:57:39
oeisdata/seq/A009/A009785.seq
56756b1bd2dd35a5965ef6196c7420fa
A009786
Expansion of tanh(log(1+x)/cos(x)).
[ "0", "1", "-1", "3", "0", "-45", "465", "-3759", "22232", "-70059", "-1060245", "28407599", "-453971496", "5589320503", "-48353999603", "7539772397", "12427981991760", "-374837737029719", "7794717166601847", "-122407621058565797", "1113301750728210320" ]
[ "sign", "easy" ]
12
0
4
null
null
R. H. Hardin
2024-12-22T10:48:52
oeisdata/seq/A009/A009786.seq
ad3e94ac185b04528d44aa52c0ae13b8
A009787
Expansion of tanh(log(1+x)/cosh(x)).
[ "0", "1", "-1", "-3", "12", "35", "-435", "-161", "23968", "-68811", "-1874205", "15189361", "177102156", "-3209424153", "-15134777567", "750725838563", "-828777844320", "-197682938738071", "1577204564247783", "55820827940141285", "-1005440186803008980" ]
[ "sign", "easy" ]
10
0
4
null
null
R. H. Hardin
2015-06-22T22:39:03
oeisdata/seq/A009/A009787.seq
f4f4377f0650d1a14322c9496c0e726f
A009788
Expansion of e.g.f.: tanh(log(1+x)/exp(x)).
[ "0", "1", "-3", "6", "12", "-325", "3275", "-21238", "2128", "2873229", "-59980543", "767451894", "-4032383300", "-119489497257", "4880007568319", "-104393287284518", "1240478290057792", "10284007879438201", "-1108679036024621403", "37101253954089817798" ]
[ "sign", "easy" ]
12
0
3
null
null
R. H. Hardin
2015-06-22T22:38:48
oeisdata/seq/A009/A009788.seq
d7d3645c5b9a03f7e9f60fff9455ce7f
A009789
Expansion of e.g.f.: tanh(log(1+x)^2).
[ "0", "0", "2", "-6", "22", "-100", "308", "1512", "-51144", "869472", "-12648528", "168624720", "-2029008720", "19500193440", "-52358834400", "-4526884091520", "184448883292800", "-5247799551052800", "128265498107293440", "-2787299439278250240" ]
[ "sign", "easy" ]
15
0
3
null
null
R. H. Hardin
2017-04-02T12:32:22
oeisdata/seq/A009/A009789.seq
6530d3606ca2882697354a15b946eddb
A009790
Expansion of tanh(sin(log(1+x))).
[ "0", "1", "-1", "-1", "12", "-44", "0", "1308", "-9744", "10252", "627300", "-8602012", "52192272", "175312944", "-7344669696", "47605119248", "1147983841920", "-39804749006384", "654853807745712", "-6275619074963280", "23531625959609280", "-369751741237644224" ]
[ "sign", "easy" ]
10
0
5
null
null
R. H. Hardin
2015-06-22T22:38:30
oeisdata/seq/A009/A009790.seq
db206af6f23c337b27bf359ca3b9c0cc
A009791
E.g.f. tanh(sin(sin(x))) (odd powers only).
[ "1", "-4", "68", "-2584", "171344", "-17464448", "2529148352", "-493428887168", "124730546544896", "-39649824402078720", "15479590269182063616", "-7280988095409621465088", "4060943278418110382329856", "-2650034901967494261760065536" ]
[ "sign" ]
19
0
2
null
null
R. H. Hardin
2014-04-18T18:57:15
oeisdata/seq/A009/A009791.seq
44732f5763858062f93ea1953e05dee7
A009792
Expansion of tanh(sin(tan(x))).
[ "1", "-1", "-7", "-1", "-271", "-160865", "-20526295", "-2612566625", "-428389803295", "-92209986037569", "-24470039135390631", "-7682773321370869825", "-2806605353653596949039", "-1180130871205583579484833", "-564761272710902075156873847" ]
[ "sign" ]
12
0
3
null
null
R. H. Hardin
2017-04-02T12:29:25
oeisdata/seq/A009/A009792.seq
27d09f81f1dd530f6cf27a7c49db9315
A009793
Expansion of tanh(sin(x))*cos(x).
[ "1", "-6", "72", "-1904", "89344", "-6445824", "660602880", "-91175548928", "16301080281088", "-3664597991424000", "1011727950085619712", "-336514395583207178240", "132722531082033166286848", "-61245140659205655654039552" ]
[ "sign" ]
17
0
2
null
null
R. H. Hardin
2014-02-08T14:53:57
oeisdata/seq/A009/A009793.seq
c02e768e974ffd11779b5670db5d1fe1
A009794
Expansion of tanh(sin(x))*exp(x).
[ "0", "1", "2", "0", "-8", "12", "168", "-336", "-6208", "15760", "365984", "-1144704", "-31759232", "117385920", "3799039104", "-16206548736", "-599327352832", "2897776619776", "120551382086144", "-651455951990784", "-30112348370954240", "179856295521635328" ]
[ "sign", "easy" ]
11
0
3
null
null
R. H. Hardin
2017-04-02T12:22:08
oeisdata/seq/A009/A009794.seq
a506d47685b778749468691dd5a2cdf3
A009795
Expansion of tanh(sin(x))*sin(x).
[ "0", "2", "-16", "288", "-10368", "610304", "-52885504", "6324756480", "-997700468736", "200677417680896", "-50126593037172736", "15222954297995034624", "-5523668414636262162432", "2360101997206034337234944", "-1172849951576110533537955840", "670735996458876867872135577600" ]
[ "sign" ]
17
0
2
null
null
R. H. Hardin
2018-02-05T15:36:34
oeisdata/seq/A009/A009795.seq
5e1df0f0f8b14c4fe2ff14b34cf6d9ad
A009796
Expansion of tanh(sin(x))*tan(x).
[ "0", "2", "-4", "198", "-4488", "365834", "-26333836", "3548101326", "-521011775760", "109600356362258", "-26637313430995732", "8227982193974569686", "-2954555247298219357848", "1270556471466981784144154" ]
[ "sign" ]
15
0
2
null
null
R. H. Hardin
2017-04-02T12:31:43
oeisdata/seq/A009/A009796.seq
f20ccc51e6a1d98e437c2e172e54caaa
A009797
Expansion of tanh(sin(x))/cos(x) (odd powers only).
[ "1", "0", "32", "-336", "31744", "-1588224", "207515648", "-24843657216", "4860991111168", "-1034712438669312", "295553381961826304", "-96277515461273321472", "38465285132060037480448", "-17609621553067367199670272" ]
[ "sign" ]
14
1
3
null
null
R. H. Hardin
2017-04-02T12:32:03
oeisdata/seq/A009/A009797.seq
4949130444b04017245bd5c8ae54ef1c
A009798
E.g.f. tanh(sin(x)*cos(x)) (odd powers only).
[ "1", "-6", "112", "-5488", "451840", "-57057792", "10262228992", "-2484525168640", "779280513040384", "-307370299649556480", "148889329569589362688", "-86890528715348714192896", "60129120979379216762011648" ]
[ "sign" ]
18
0
2
[ "A009798", "A101921" ]
null
R. H. Hardin
2017-04-02T12:28:23
oeisdata/seq/A009/A009798.seq
2f39725f66cb24d789829bdd5ddfa368
A009799
E.g.f. tanh(sin(x)*exp(x)).
[ "0", "1", "2", "0", "-24", "-148", "-248", "5488", "73024", "346768", "-3749728", "-100273536", "-922745472", "4147334336", "283697686144", "4362058183936", "4465927211008", "-1382047649378048", "-33554250522144256", "-226963355560685568", "10084981854738991104" ]
[ "sign", "easy" ]
14
0
3
null
null
R. H. Hardin
2017-04-02T12:25:16
oeisdata/seq/A009/A009799.seq
f365ac8493228000087bbf4882242559
A009800
Expansion of tanh(sin(x)*x).
[ "0", "2", "-4", "-234", "6712", "352810", "-51057612", "-1023950914", "1108394851184", "-71310362507694", "-51164568485366420", "13196238860000066662", "3757445119118639509416", "-2956206137979802134429574" ]
[ "sign" ]
12
0
2
[ "A009800", "A024243" ]
null
R. H. Hardin
2017-04-02T12:27:23
oeisdata/seq/A009/A009800.seq
6bbc7051ae6cd506a61860e49af0be38