id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A072105
[ 3, 5, 8, 7, 10, 10, 11, 15, 22, 20, 20, 21, 30, 28, 28, 29, 42, 38, 37, 55, 90, 66, 55, 87, 150, 100, 76, 65, 102, 80, 70, 66, 65, 97, 160, 115, 194, 134, 105, 171, 302, 192, 138, 112, 100, 95, 144, 119, 190, 144, 122, 112, 108, 107, 160, 135, 214, 164, 140 ]
[ "easy", "nonn" ]
A359625
[ 2, 1, 8, 95, 4, 143, 6, 63, 26, 9, 10, 16415, 12, 111, 44, 255, 16, 273023, 18, 159, 62, 175, 22, 575, 74, 25, 80, 671, 28, 3599, 30, 511, 395, 441, 34, 5183, 36, 303, 116, 8639, 40, 163295, 42, 1055, 134, 101567, 46, 19191876318719, 48, 49, 152, 415, 52, 3887 ]
[ "nonn" ]
A181952
[ 1, 1, 2, 6, 24, 12, 27, 45, 234, 23688, 23688, 136899, 14679, 222678, 112277889, 133466778, 2227888899, 23455667889, 22334567778, 111223445688, 122234466789, 1112444577999, 11224667777778, 122344556667788900, 122333334444667900, 11112333445558900 ]
[ "nonn", "easy", "base" ]
A364450
[ 1, 1, 1, 1, 2, 6, 17, 43, 135, 536, 2262, 9109, 40119, 198069, 1057149, 5656915, 31937212, 191032078, 1218669125, 7948119483, 54117500635, 381631039690, 2828205076600, 21507011811289, 169880627954541, 1377653319819302, 11620433411120652, 100417638302823220 ]
[ "nonn" ]
A152248
[ 1, 2, 5, 8, 3, 13, 18, 4, 11, 14, 17, 6, 28, 23, 20, 7, 33, 38, 26, 9, 43, 48, 10, 29, 32, 25, 39, 46, 53, 35, 12, 58, 63, 68, 41, 44, 15, 73, 78, 16, 47, 50, 56, 19, 93, 83, 59, 62, 21, 103, 88, 60, 67, 74, 65, 22, 108, 98, 71, 24, 118, 113, 77, 80, 27, 133, 123, 81, 95, 86 ]
[ "nonn" ]
A130202
[ 1, 21, 28, 55, 91, 171, 253, 276, 351, 406, 465, 496, 595, 666, 820, 861, 1081, 1225, 1378, 1431, 1485, 1540, 1653, 1770, 1891, 2211, 2346, 2485, 2850, 3003, 3160, 3240, 3403, 3655, 3916, 4186, 4371, 4560, 4753, 4950 ]
[ "nonn" ]
A140347
[ 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100, 102, 104 ]
[ "nonn" ]
A095076
[ 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0 ]
[ "nonn" ]
A356088
[ 1, 4, 7, 8, 11, 14, 16, 18, 21, 24, 26, 28, 31, 33, 35, 38, 41, 43, 45, 48, 50, 53, 55, 57, 60, 63, 65, 67, 70, 72, 74, 77, 80, 82, 84, 87, 90, 91, 94, 97, 100, 101, 104, 107, 108, 111, 114, 117, 118, 121, 124, 127, 128, 131, 134, 135, 138, 141, 144, 145 ]
[ "nonn", "easy" ]
A058455
[ 3, 283, 301345331969667, 2.9983160090457258e+26 ]
[ "nonn", "base", "hard", "more" ]
A130089
[ 1, 1, 2, 3, 12, 20, 45, 14, 70, 864, 525, 880, 6237, 3328, 3003, 900, 25025, 60928, 53703, 19456, 3997125, 1209600, 3556553, 30912, 67643667, 11264000, 244375, 26687232, 52055003, 2702336, 351469125, 90272000, 47453715, 1284636672 ]
[ "frac", "nonn" ]
A279348
[ 1, 2, 3, 5, 4, 6, 7, 9, 10, 15, 11, 8, 12, 14, 25, 27, 18, 35, 13, 20, 30, 21, 33, 22, 39, 49, 16, 24, 28, 50, 65, 51, 54, 77, 17, 36, 70, 57, 87, 26, 55, 85, 40, 60, 42, 63, 95, 66, 121, 45, 44, 78, 69, 81, 98, 147, 119, 32, 48, 56, 100, 130, 125, 159, 102, 143, 19, 108, 154, 105, 207, 34, 145, 215, 72, 140, 114, 75, 91, 174, 133, 117, 52 ]
[ "nonn" ]
A243089
[ 25, 325, 1825, 4525, 4825, 10225, 12025, 16725, 20425, 30025, 35425, 58825, 177025, 216525, 265525, 352225, 526825, 611425, 675925, 710425, 717025, 746425, 772525, 784225, 834025, 877825, 1125825, 1126225, 1439425, 1491025, 1579225, 1935025, 1973425, 2176525 ]
[ "nonn" ]
A312514
[ 1, 4, 8, 14, 18, 23, 25, 34, 34, 40, 46, 46, 54, 60, 58, 74, 67, 77, 82, 86, 84, 102, 86, 110, 104, 110, 122, 119, 121, 138, 130, 136, 150, 134, 158, 156, 154, 178, 163, 173, 186, 182, 180, 206, 174, 214, 200, 206, 226, 215 ]
[ "nonn" ]
A352889
[ 1, 2, 2, 1, 2, 3, 4, 2, 2, 3, 4, 2, 3, 2, 2, 1, 2, 3, 4, 3, 4, 3, 4, 5, 4, 3, 2, 1, 2, 4, 5, 4, 3, 4, 3, 4, 5, 4, 3, 2, 3, 4, 3, 2, 3, 4, 4, 3, 4, 2, 3, 4, 3, 2, 3, 4, 5, 6, 4, 6, 5, 4, 5, 4, 6, 3, 4, 2, 3, 4, 3, 4, 3, 2, 2, 1, 4, 5, 4, 5, 6, 5, 4, 3, 4, 5, 4, 3, 4, 5, 6, 7, 6, 5, 6, 4, 5, 2, 5, 4, 4, 3, 2, 3, 4 ]
[ "nonn", "base" ]
A309503
[ 1, 2, 1, 2, 4, 5, 2, 4, 5, 2, 8, 4, 5, 2, 8, 11, 8, 4, 13, 14, 15, 16, 4, 13, 4, 14, 8, 11, 16, 4, 8, 13, 22, 23, 24, 4, 8, 13, 4, 14, 8, 13, 14, 24, 4, 14, 15, 30, 15, 16, 24, 8, 33, 34, 13, 22, 36, 37, 14, 24, 8, 13, 4, 14, 24, 16, 41, 42, 8, 13, 22, 44 ]
[ "nonn", "easy" ]
A179489
[ 1, 1, 2, 8, 44, 288, 2172, 18516, 175352, 1819868, 20491844, 248417128, 3221797252, 44464876996, 650076797232, 10028658649668, 162695157490644, 2767333692834768, 49221196196394260, 913310582666986600 ]
[ "nonn" ]
A350710
[ 1, -1, 1, -3, -2, 1, -16, -16, -2, 1, 0, 100, -10, -10, 1, -1296, 0, 324, -24, -13, 1, 0, 0, 4116, 392, -175, -14, 1, 0, -131072, 16384, 12288, -512, -352, -12, 1, 0, 0, -708588, 0, 44469, 2592, -459, -24, 1, 0, 0, 16000000, 800000, -760000, -12000, 11000, -100, -45, 1 ]
[ "sign", "tabl" ]
A004495
[ 6, 7, 8, 0, 1, 2, 3, 4, 5, 15, 16, 17, 9, 10, 11, 12, 13, 14, 24, 25, 26, 18, 19, 20, 21, 22, 23, 33, 34, 35, 27, 28, 29, 30, 31, 32, 42, 43, 44, 36, 37, 38, 39, 40, 41, 51, 52, 53, 45, 46, 47, 48, 49, 50, 60, 61, 62, 54, 55, 56, 57, 58, 59, 69, 70, 71, 63, 64 ]
[ "nonn", "base" ]
A249871
[ 0, 0, 0, 0, 1, 0, 1, 2, 2, 3, 2, 3, 4, 4, 3, 4, 5, 4, 4, 6, 6, 6, 6, 8, 7, 8, 8, 9, 8, 8, 8, 10, 10, 11, 9, 10, 12, 10, 12, 12, 10, 12, 13, 13, 12, 14, 12, 15, 16, 15, 15, 15, 16, 18, 18, 16, 19, 18, 17, 18, 18, 20, 20, 18, 20, 18, 21, 19, 22 ]
[ "nonn", "easy" ]
A205768
[ 192, 1262, 1262, 8659, 17674, 8659, 62607, 274013, 274013, 62607, 462040, 4570761, 9909258, 4570761, 462040, 3490700, 77757894, 375857889, 375857889, 77757894, 3490700, 26672819, 1336717872, 14312320196, 31592825608, 14312320196 ]
[ "nonn", "tabl" ]
A023033
[ 1, 8, 36, 120, 330, 792, 1716, 3432, 6434, 11440, 19440, 31824, 50352, 77520, 116160, 170544, 244826, 346104, 479908, 657792, 886314, 1184040, 1557312, 2035800, 2623140, 3365736, 4260608, 5379616, 6704742, 8347680, 10263648, 12619464 ]
[ "nonn" ]
A303939
[ 1, 1, 2, 2, 4, 5, 8, 10, 14, 18, 25, 32, 43, 54, 71, 88, 114, 141, 180, 221, 278, 340, 423, 515, 634, 768, 938, 1131, 1372, 1646, 1985, 2371, 2844, 3383, 4037, 4783, 5682, 6709, 7936, 9339, 11004, 12908, 15155, 17724, 20740, 24186, 28214, 32812, 38165, 44271, 51354 ]
[ "nonn" ]
A139924
[ 41, 89, 137, 281, 353, 401, 449, 593, 617, 761, 929, 977, 1097, 1217, 1289, 1409, 1553, 1601, 1697, 1721, 1913, 2153, 2273, 2633, 2657, 2777, 2801, 2897, 2969, 3089, 3209, 3257, 3593, 3833, 3881, 4049, 4217, 4337, 4409, 4457, 4649, 4673 ]
[ "nonn", "easy" ]
A216303
[ 28, 52, 115, 172, 193, 211, 214, 259, 280, 337, 358, 382, 385, 424, 427, 442, 448, 502, 613, 655, 676, 679, 733, 901, 928, 1027, 1030, 1135, 1207, 1216, 1225, 1393, 1456, 1459, 1558, 1597, 1645, 1663, 1690, 1768, 1813, 1831, 1852, 1918, 1954, 1984, 1996, 2023 ]
[ "nonn" ]
A330485
[ 1024, 24151040, 61938212890624, 9.226967798833574e+21, 1.3279660499584033e+31 ]
[ "nonn", "hard", "more" ]
A000817
[ 16, 80, 1056, 320416, 1858620869536, 1.6880173675358e+28, 7.066957231258091e+62 ]
[ "nonn" ]
A251187
[ 512, 1728, 5832, 19683, 46656, 110592, 262144, 512000, 1000000, 1953125, 3375000, 5832000, 10077696, 16003008, 25412184, 40353607, 60236288, 89915392, 134217728, 191102976, 272097792, 387420489, 531441000, 729000000, 1000000000, 1331000000 ]
[ "nonn" ]
A170219
[ 1, 18, 306, 5202, 88434, 1503378, 25557426, 434476242, 7386096114, 125563633938, 2134581776946, 36287890208082, 616894133537394, 10487200270135698, 178282404592306880, 3030800878069217000, 51523614927176690000 ]
[ "nonn" ]
A306793
[ 2, 6, 28, 370, 13403, 1535679 ]
[ "nonn", "more", "hard" ]
A164637
[ 1, 24, 552, 12696, 292008, 6716184, 154472232, 3552861060, 81715798032, 1879463209008, 43227650455440, 994235883385008, 22867423544782610, 525950700749330750, 12096865179279290000, 278227877550453060000 ]
[ "nonn" ]
A117045
[ 2, 3, 5, 6, 8, 10, 11, 15, 17, 18, 20, 24, 26, 27, 30, 35, 37, 38, 39, 40, 42, 48, 50, 51, 56, 63, 65, 66, 68, 72, 80, 82, 83, 84, 87, 90 ]
[ "nonn" ]
A345184
[ 4392, 4915, 5139, 5256, 5321, 5624, 5643, 5678, 5741, 5769, 5797, 5832, 5914, 6075, 6202, 6499, 6560, 6616, 6642, 6677, 6833, 6884, 7008, 7111, 7128, 7155, 7218, 7344, 7395, 7641, 7696, 7729, 7785, 7813, 7820, 7849, 7883, 8037, 8100, 8243, 8282, 8308, 8315 ]
[ "nonn" ]
A097986
[ 1, 1, 2, 2, 2, 4, 3, 5, 5, 7, 6, 12, 9, 13, 15, 20, 18, 28, 26, 37, 39, 47, 49, 71, 68, 85, 94, 117, 120, 159, 160, 201, 216, 257, 277, 348, 357, 430, 470, 562, 592, 720, 758, 901, 981, 1134, 1220, 1457, 1542, 1798, 1952, 2250, 2419, 2819, 3023, 3482, 3773, 4291 ]
[ "easy", "nonn" ]
A094330
[ 1, 3, 40, 1260, 72072, 6511680, 852508800, 152512113600, 35730097603200, 10613749905158400, 3897631650008678400, 1.7336251895410768e+21, 9.183816250860378e+23, 5.7132054962415474e+26 ]
[ "nonn" ]
A144736
[ 1, 2, 1, 2, 0, 2, 3, 0, 2, 2, 2, -2, 1, 1, 4, 4, -2, 3, 0, 5, 2, 2, -4, 0, -1, 4, 1, 6, 4, -5, 2, -1, 4, 1, 6, 4, 3, -6, 1, -3, 4, -2, 6, 4, 6, 4, -8, 0, -4, 8, -3, 7, 3, 7, 4, 2, -8, -2, -6, 3, -4, 6, 2, 6, 3, 10 ]
[ "tabl", "sign" ]
A321942
[ 1, 2, 8, 44, 300, 2420, 22460, 235260, 2741660, 35152820, 491459820, 7436765660, 121046445260, 2108118579060, 39104985755420, 769549656815420, 16009942093608060, 351030466622487900, 8089084984387984000, 195421894806240560000, 4.938445392988428e+21 ]
[ "nonn", "easy" ]
A336032
[ 1, 0, 2, 2, 2, 4, 6, 6, 14, 34, 79, 159, 227, 429, 727, 1146, 1999, 3238, 5018, 8976, 14977, 24768, 38400, 70678, 152535, 295493, 617675, 1404099, 3023086, 6685876, 14230031, 30218806, 62175519, 127820798, 257285277, 516574751, 1021334631, 2009999405, 3917878730 ]
[ "nonn" ]
A191347
[ 1, 0, 1, 0, 1, 1, 0, 2, 1, 1, 0, 4, 3, 1, 1, 0, 8, 7, 4, 2, 1, 0, 16, 17, 10, 8, 2, 1, 0, 32, 41, 28, 32, 9, 2, 1, 0, 64, 99, 76, 128, 38, 10, 2, 1, 0, 128, 239, 208, 512, 161, 44, 11, 2, 1, 0, 256, 577, 568, 2048, 682, 196, 50, 12, 3, 1 ]
[ "nonn", "tabl" ]
A184992
[ 1, 10, 11, 12, 2, 20, 21, 13, 3, 23, 22, 24, 4, 14, 15, 5, 25, 26, 6, 16, 17, 7, 27, 28, 8, 18, 19, 9, 29, 32, 30, 31, 33, 34, 35, 36, 37, 38, 39, 43, 40, 41, 42, 44, 45, 46, 47, 48, 49, 54, 50, 51, 52, 53, 55, 56, 57, 58, 59, 65, 60, 61, 62, 63, 64, 66, 67, 68, 69, 76, 70, 71, 72, 73 ]
[ "nonn", "base" ]
A075421
[ 290, 318, 719, 795, 799, 1210, 3903, 4199, 4207, 4219, 4236, 4278, 4279, 4294, 4326, 4333, 4334, 4338, 4402, 4598, 4662, 4726, 5046, 5357, 6157, 6174, 7246, 7247, 7295, 7407, 7549, 8063, 8191, 9211, 12319, 12431, 12463, 12539, 15487, 16519, 16587 ]
[ "base", "nonn" ]
A152374
[ 1, 2, 6, 24, 120, 720, 5040, 36864, 300864, 2655936, 25669872, 262292320, 3057469072, 37397021616, 490976440820, 6788575069128 ]
[ "nonn" ]
A254570
[ 0, 3, 57, 1284, 34220, 1098720, 41579328, 1832244288, 92830006368, 5353120671120, 348383876993900, 25409389391925264, 2064511110000765200, 185885772163424300000, 1.8458953746901625e+22, 2.0125892359305435e+24, 2.39897773975844e+26, 3.113254731800272e+28, 4.380969784826873e+30, 6.658966018253938e+32 ]
[ "nonn" ]
A272733
[ 7, 12, 17, 23, 24, 45, 20, 75, 13, 92, 15, 129, 19, 132, -19, 239, -28, 153, 55, 264, -39, 156, 140, 255, 0, 137, 159, 424, -87, 163, 152, 417, -1, 96, 305, 451, -35, 23, 500, 365, -81, 172, 517, 348, 28, 35, 588, 393, 167, -280, 1101, 103, 36, 161, 875 ]
[ "sign", "easy" ]
A151293
[ 1, 2, 7, 24, 88, 328, 1246, 4779, 18485, 71918, 281102, 1102653, 4337842, 17104951, 67577658, 267410057, 1059581561, 4203221319, 16689714274, 66324649355, 263761185264, 1049579758069, 4178825351781, 16645543692333, 66331807758634, 264426232745902, 1054454512710944, 4206064951123326 ]
[ "nonn", "walk" ]
A089162
[ 3, 7, 31, 127, 23, 89, 8191, 131071, 524287, 47, 178481, 233, 1103, 2089, 2147483647, 223, 616318177, 13367, 164511353, 431, 9719, 2099863, 2351, 4513, 13264529, 6361, 69431, 20394401, 179951, 3203431780337, 2305843009213694000, 193707721, 761838257287 ]
[ "nonn", "tabf" ]
A386710
[ 1, 8, 5, 7, 5, 1, 7, 7, 8, 0, 2, 2, 9, 2, 1, 9, 1, 0, 8, 7, 7, 0, 5, 9, 8, 1, 8, 7, 6, 5, 3, 1, 3, 7, 1, 5, 0, 1, 3, 9, 0, 4, 9, 0, 9, 1, 1, 3, 5, 7, 0, 5, 0, 9, 1, 7, 2, 0, 6, 3, 4, 6, 3, 6, 1, 1, 2, 0, 8, 2, 2, 2, 1, 6, 4, 7, 0, 8, 7, 1, 8, 0, 7, 3, 4, 5, 8, 2, 7, 2, 2, 8, 3, 0, 6, 6, 5, 7, 7, 3, 9, 3, 8, 5, 8 ]
[ "nonn", "cons", "easy" ]
A361518
[ 3, 2, 9, 7, 6, 5, 3, 1, 4, 9, 5, 6, 6, 9, 9, 1, 0, 7, 6, 1, 7, 8, 6, 3, 4, 1, 7, 5, 5, 5, 2, 1, 8, 6, 0, 4, 2, 7, 0, 1, 3, 7, 3, 9, 1, 1, 4, 0, 6, 9, 2, 4, 1, 4, 4, 0, 2, 9, 0, 8, 3, 5, 4, 7, 6, 2, 0, 0, 6, 2, 8, 3, 7, 3, 1, 5, 6, 7, 1, 7, 2, 8, 6, 1, 1, 8, 2, 6, 3, 6, 4, 8, 6, 3, 6, 2, 7, 1, 4, 0, 8, 0, 1, 6, 5 ]
[ "cons", "nonn" ]
A110184
[ 0, 1, 8, 55, 354, 2205, 13484, 81523, 489158, 2919481, 17356752, 102884271, 608460330, 3591886293, 21172419444, 124649246955, 733107494286, 4307974826097, 25296523200920, 148448166035239, 870665283937010 ]
[ "nonn" ]
A333817
[ 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 2, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1 ]
[ "nonn" ]
A171230
[ 0, 1, 11, 11, 111, 111, 111, 111, 1111, 1111, 1111, 1111, 1111, 1111, 1111, 1111, 11111, 11111, 11111, 11111, 11111, 11111, 11111, 11111, 11111, 11111, 11111, 11111, 11111, 11111, 11111, 11111, 111111, 111111, 111111, 111111, 111111 ]
[ "nonn", "base" ]
A107802
[ 3, 13, 11, 17, 7, 37, 23, 2, 29, 19, 31, 41, 43, 47, 67, 61, 71, 73, 53, 5, 59, 79, 89, 83, 103, 101, 107, 97, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277 ]
[ "nonn", "base" ]
A313271
[ 1, 4, 9, 15, 20, 26, 31, 36, 39, 45, 48, 55, 61, 66, 72, 77, 82, 83, 91, 91, 101, 107, 112, 118, 123, 128, 126, 137, 134, 147, 153, 158, 164, 169, 174, 169, 183, 177, 193, 199, 204, 210, 215, 220, 212, 229, 220, 239, 245, 250 ]
[ "nonn" ]
A088511
[ 5, 13, 17, 25, 29, 41, 37, 61, 65, 53, 85, 65, 113, 73, 101, 85, 89, 145, 97, 145, 109, 181, 125, 221, 149, 197, 137, 173, 265, 157, 185, 257, 169, 313, 185, 229, 193, 205, 365, 325, 205, 269, 233, 421, 221, 293, 241, 265, 401, 481, 317, 277, 545, 365, 485, 281 ]
[ "nonn" ]
A049056
[ 1, 1, 3, 19, 207, 3691, 103263, 4415419, 283796607, 27094905451, 3813398797023, 786844659227419, 237151202183603000, 104128385332221920000, 6.647889908908016e+22, 6.162404112132949e+25 ]
[ "nonn", "easy", "nice" ]
A072166
[ 1, 3, 5, 7, 10, 13, 17, 21, 25, 29, 31, 36, 41, 46, 51, 55, 61, 67, 73, 79, 85, 92, 99, 106, 113, 120, 127, 134, 137, 145, 153, 161, 169, 177, 185, 193, 199, 208, 217, 226, 235, 244, 253, 262, 271, 281, 291, 301, 311, 321, 331, 341, 351, 361, 371, 375, 386, 397 ]
[ "nonn" ]
A271153
[ 1, 5, 32, 164, 768, 3353, 13981, 56229, 226333, 911157, 3656509, 14652789, 58664893, 234770037, 939301309, 3757650549 ]
[ "nonn", "more" ]
A386422
[ 3, 33, 99, 135, 855, 2295, 19575, 38745, 63855, 121485, 371925, 3870195, 8109585, 28306005, 36340395, 113215095, 463084245, 672363615, 675916395, 686574735, 1208140395 ]
[ "nonn", "more" ]
A075779
[ 2, 6, 6, 12, 16, 12, 20, 35, 35, 20, 30, 66, 84, 66, 30, 42, 112, 175, 175, 112, 42, 56, 176, 328, 400, 328, 176, 56, 72, 261, 567, 819, 819, 567, 261, 72, 90, 370, 920, 1540, 1820, 1540, 920, 370, 90, 110, 506, 1419, 2706, 3696, 3696, 2706, 1419, 506, 110, 132, 672 ]
[ "nonn", "tabl" ]
A361137
[ 1, 10, 98, 983, 10062, 105024, 1112757, 11934910, 129307100, 1412855500, 15548498902, 172168201088, 1916619748084, 21436209373224, 240741065193282, 2713584138389838 ]
[ "nonn", "more" ]
A341071
[ 1, 1, 3, 7, 23, 76, 267, 932, 3263, 11410, 40028, 140955, 498467, 1769249, 6299282, 22485487, 80435919, 288275461, 1034862558, 3720499175, 13393720428, 48275699654, 174194970601, 629187941167, 2274710068067, 8230764250326, 29805342037721, 108009638665648 ]
[ "nonn" ]
A086759
[ 0, 1, 9, 164, 5050, 227508, 14064519, 1146668608, 119249333028, 15400125776000, 2417814003691405, 453536611741073660, 100178077459552490000, 2.573574969625139e+22, 7.60841598149979e+24, 2.56472441313166e+27, 9.778347105699172e+29 ]
[ "nonn" ]
A297190
[ 4, 9, 20, 30, 42, 56, 80, 99, 120, 143, 168, 195, 224, 255, 288, 323, 378, 418, 460, 504, 550, 598, 648, 700, 754, 837, 896, 957, 1020, 1085, 1152, 1221, 1292, 1365, 1440, 1517, 1634, 1716, 1800, 1886, 1974, 2064, 2156, 2250, 2346, 2444, 2544, 2646, 2750, 2907, 3016, 3127, 3240, 3355, 3472, 3591, 3712, 3835, 3960, 4087, 4216 ]
[ "nonn" ]
A244259
[ 1, 0, 0, 0, 2, 1, 2, 1, 1, 2, 2, 1, 2, 2, 1, 2, 2, 3, 2, 2, 2, 2, 2, 2, 3, 2, 2, 3, 2, 3, 2, 3, 2, 2, 2, 4, 2, 2, 2, 2, 2, 3, 2, 3, 3, 2, 2, 4, 3, 4, 2, 3, 2, 5, 4, 3, 2, 2, 2, 4, 2, 2, 2, 4, 4, 5, 2, 3, 2, 4, 2, 5, 2, 2, 3, 3, 4, 5, 2, 4, 3, 2, 2, 4, 4, 2, 2, 5, 2, 5, 4, 3, 2, 2, 4, 6 ]
[ "nonn", "easy" ]
A305512
[ 2, 1, 6, 10, 13, 38, 73, 164, 351, 749, 1719, 3710, 8182, 18453, 40666, 90453, 201921, 448575, 999776, 2226884, 4957665, 11048840, 24608791, 54816139, 122135777, 272069268, 606114434, 1350348321, 3008242832, 6701882069, 14930628603 ]
[ "nonn" ]
A289381
[ 1, 4, 7, 148, 1333, 4888, 190633, 2859496, 1246447, 923617228, 19395961789, 11438644132, 1013879820791, 301122306774928, 171226409734763, 270708953790660300, 525493851475987650, 104222947209404220000, 1.1568747140243868e+22, 4.5118113846951085e+23 ]
[ "nonn", "frac" ]
A218458
[ -11927, -9311, -7009, -5009, -3299, -1867, -701, 211, 881, 1321, 1543, 1559, 1381, 1021, 491, -197, -1031, -1999, -3089, -4289, -5587, -6971, -8429, -9949, -11519, -13127, -14761, -16409, -18059, -19699, -21317, -22901, -24439, -25919 ]
[ "sign", "easy" ]
A231490
[ 1, 1, 7, 177, 13887 ]
[ "nonn", "more" ]
A330172
[ 1, 3, 4, 6, 7, 10, 12, 13, 15, 16, 18, 21, 22, 24, 25, 27, 28, 31, 33, 34, 36, 37, 39, 42, 43, 45, 46, 48, 49, 52, 54, 55, 57, 58, 61, 63, 64, 66, 67, 69, 72, 73, 75, 76, 78, 79, 82, 84, 85, 87, 88, 90, 93, 94, 96, 97, 99, 100, 103, 105, 106, 108, 109, 111 ]
[ "nonn", "easy" ]
A091268
[ 1, 4, 99, 6272, 876725, 232419936, 105471170140, 76095730062464, 82555139387847310, 128928209221144670000, 2.7986060803777183e+23, 8.203600895988493e+26, 3.169977309466844e+30 ]
[ "nonn" ]
A217575
[ 2, 6, 7, 12, 13, 14, 20, 21, 22, 23, 30, 31, 32, 33, 34, 42, 43, 44, 45, 46, 47, 56, 57, 58, 59, 60, 61, 62, 72, 73, 74, 75, 76, 77, 78, 79, 90, 91, 92, 93, 94, 95, 96, 97, 98, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 132, 133, 134, 135, 136 ]
[ "nonn" ]
A197450
[ 1, 2, 2, 3, 5, 3, 4, 12, 12, 4, 7, 36, 81, 36, 7, 11, 107, 474, 474, 107, 11, 16, 321, 2678, 4837, 2678, 321, 16, 26, 957, 15410, 52117, 52117, 15410, 957, 26, 41, 2868, 88767, 585194, 1108699, 585194, 88767, 2868, 41, 62, 8581, 510482, 6455759, 23829080 ]
[ "nonn", "tabl" ]
A102109
[ 23, 79, 41, 53, 163, 283, 307, 151, 101, 199, 367, 149, 2027, 1783, 1621, 2999, 5303, 2699, 2381, 7129, 3019, 4159, 2503, 41647, 2971, 9413, 8369, 5801, 7247, 18517, 15887, 9293, 2699, 4211, 157, 3821 ]
[ "base", "nonn", "less" ]
A239915
[ 1, 2, 3, 5, 7, 12, 18, 29, 44, 68, 104, 156, 249, 374, 566, 876, 1314, 2082, 3141, 4712, 7376, 11064, 17208, 26225, 39338, 62292, 93438, 142590, 219645, 329468, 526076, 790008, 1185012, 1845737, 2768606, 4341470, 6585788, 9878682, 15563061, 23344592, 35927504 ]
[ "nonn" ]
A185118
[ 1, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
[ "nonn", "easy" ]
A340381
[ 1, 2, 1, 1, 3, 2, 2, 3, 4, 1, 1, 1, 1, 1, 2, 4, 5, 3, 3, 5, 5, 2, 1, 3, 1, 2, 1, 5, 5, 1, 1, 6, 1, 1, 4, 7, 1, 1, 7, 7, 3, 1, 2, 1, 5, 3, 1, 4, 1, 2, 5, 1, 5, 2, 5, 7, 3, 1, 7, 5, 5, 2, 5, 8, 2, 5, 3, 5, 1, 3, 7, 9, 6, 2, 4, 5, 2, 3, 3, 10, 11, 1, 1, 5, 4, 1, 2, 3, 7, 1, 10, 7, 7, 2, 1, 6, 1, 2, 1, 1, 5, 1, 2, 3, 7 ]
[ "nonn" ]
A161955
[ 1, 1, 3, 1, 5, 3, 7, 1, 9, 5, 11, 3, 13, 7, 15, 1, 17, 9, 19, 5, 21, 11, 23, 3, 19, 13, 27, 7, 29, 15, 31, 1, 57, 17, 49, 9, 37, 19, 33, 5, 41, 21, 43, 11, 45, 23, 47, 3, 35, 19, 51, 13, 53, 27, 65, 7, 105, 29, 59, 15, 61, 31, 63, 1, 59, 57, 67, 17, 117, 49, 71, 9, 73, 37, 105, 19, 109 ]
[ "base", "nonn" ]
A318760
[ 50, 1150, 917990, 27921250, 27658786250, 890883616630, 953780917514270, 35292771610455204000, 1.1885694630780582e+21, 4.646137296752579e+25, 5.433940869458556e+28, 1.8652317961185785e+30, 2.2116093092351453e+33, 9.150354084506767e+37 ]
[ "nonn" ]
A302869
[ 1, 6, 11, 21, 51, 71, 101, 136, 161, 216, 256, 321, 371, 421, 491, 571, 651, 741, 821, 891, 1001, 1106, 1211, 1291, 1421, 1541, 1681, 1811, 1951, 2051, 2216, 2361, 2531, 2696, 2811, 2991, 3171, 3371, 3551, 3691, 3891, 4106, 4316, 4541, 4751, 4911, 5151, 5391 ]
[ "nonn" ]
A075893
[ 65, 113, 193, 273, 393, 577, 777, 1057, 1337, 1633, 1913, 2289, 2833, 3337, 3897, 4417, 4953, 5537, 6153, 7017, 8073, 9177, 10073, 10753, 11313, 12033, 13593, 15353, 17353, 18417, 20097, 21441, 23217, 24673, 26369, 28129, 29953, 31577, 33761 ]
[ "easy", "nonn" ]
A065376
[ 3, 7, 11, 17, 19, 23, 29, 41, 43, 47, 53, 59, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307 ]
[ "nonn" ]
A000130
[ 0, 0, 1, 2, 5, 20, 115, 790, 6217, 55160, 545135, 5938490, 70686805, 912660508, 12702694075, 189579135710, 3019908731105, 51139445487680, 917345570926087, 17376071107513090, 346563420097249660, 7259714390232227000, 159352909727731220000, 3.657569576966075e+21 ]
[ "nonn" ]
A202046
[ 393, 37311, 1067983, 49553277, 2229078023, 108356007319 ]
[ "nonn" ]
A000689
[ 1, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6, 2, 4, 8, 6 ]
[ "nonn", "base", "easy" ]
A202720
[ 556481, 14089479, 355151781, 8918220179, 223234807263, 5600930157675, 140489794603235, 3523493349159927, 88367125801501060, 2216306606578269700, 55585876235174035000, 1.3941121836466346e+21, 3.4964807560646013e+22 ]
[ "nonn" ]
A199037
[ 0, 12, 127, 3916, 86544, 674064, 35902575, 750625102, 5442674205, 326415070048, 6891880687104, 50123775833686, 3107281380843015, 66459989877060600, 486615013344919100, 30688654869734908000, 662760542913624100000 ]
[ "nonn" ]
A181117
[ 1, 2, 1, 2, 0, 1, 8, 2, 0, 1, 2, 0, 0, 0, 1, 4, 2, 2, 0, 0, 1, 2, 0, 0, 0, 0, 0, 1, 16, 8, 0, 2, 0, 0, 0, 1, 8, 0, 2, 0, 0, 0, 0, 0, 1, 4, 2, 0, 0, 2, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 16, 4, 8, 2, 0, 2, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 4, 2, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 1 ]
[ "nonn", "tabl" ]
A267008
[ 1, 2, 3, 10, 13, 28, 58, 90, 146, 260, 481, 688, 1168, 1748, 2863, 4726, 6938, 10412, 16140, 23746, 35702, 55812, 79032, 116758, 168779, 247006, 350310, 513410, 744286, 1045466, 1485685, 2098780, 2935416, 4137878, 5746618, 8027612, 11343706, 15487222, 21418682 ]
[ "nonn" ]
A023461
[ -19, -18, -17, -16, -15, -14, -13, -12, -11, -10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41 ]
[ "sign" ]
A005967
[ 2, 5, 17, 71, 388, 2592, 21096, 204638, 2317172, 30024276, 437469859, 7067109598, 125184509147, 2410455693765, 50101933643655, 1117669367609605, 26629298567576332, 674793598023809900, 18119844622209999000 ]
[ "nonn" ]
A326403
[ 1, 20, 35, 143, 194, 208, 740, 1220, 1299, 1419, 1803, 1892, 3705, 3716, 3843, 5186, 5635, 7868, 10659, 13634, 13905, 17948, 18507, 18914, 18980, 21007, 25388, 25545, 30380, 31599, 32304, 34595, 37820, 47067, 70394, 73059, 78064, 87856, 94874, 105908, 116963 ]
[ "nonn" ]
A201551
[ 1, 1, 15, 169, 2255, 30381, 418503, 5832765, 82073295, 1163205475, 16581420835, 237481736823, 3414582082055, 49258226347903, 712601187601395, 10334165623697260, 150186639579545280, 2186774434431445500, 31893473567409734000, 465851764737061400000 ]
[ "nonn" ]
A060206
[ 1, 2, 10, 66, 504, 4210, 37378, 346846, 3328188, 32786630, 329903058, 3377919260, 35095839848, 369192702554, 3925446804750, 42126805350798, 455792943581400, 4967158911871358, 54480174340453576, 600994488311709000, 6664356253639466000 ]
[ "nonn", "nice" ]
A184107
[ 1, 2, 3, 4, 5, 6, 8, 9, 11, 12, 14, 15, 17, 19, 21, 23, 25, 26, 29, 31, 33, 35, 37, 39, 42, 44, 47, 49, 52, 54, 57, 60, 63, 66, 69, 71, 75, 78, 81, 84, 87, 90, 94, 97, 101, 104, 108, 111, 115, 119, 123, 127, 131, 134, 139, 143, 147, 151, 155, 159, 164, 168, 173, 177, 182, 186, 191, 196, 201, 206 ]
[ "nonn", "easy" ]
A071530
[ 3, 6, 7, 9, 10, 13, 15, 17, 18, 19, 23, 24, 25, 26, 32, 33, 35, 38, 41, 44, 47, 54, 60, 62, 68, 69, 74, 80, 83, 89, 95, 99, 110, 113, 119, 128, 179, 194 ]
[ "nonn" ]
A041018
[ 3, 4, 7, 11, 18, 119, 137, 256, 393, 649, 4287, 4936, 9223, 14159, 23382, 154451, 177833, 332284, 510117, 842401, 5564523, 6406924, 11971447, 18378371, 30349818, 200477279, 230827097, 431304376, 662131473 ]
[ "nonn", "frac", "easy" ]
A218575
[ 1, 1, 2, 5, 11, 26, 56, 125, 269, 578, 1228, 2600, 5447, 11366, 23575, 48664, 99950, 204383, 416196, 844299, 1706368, 3436555, 6898255, 13803732, 27539833, 54788703, 108703105, 215112006, 424628345, 836218453, 1643005834, 3221104945, 6301628342, 12303151494 ]
[ "nonn" ]
A198577
[ 2, 1, 8, 6, 6, 5, 0, 7, 8, 3, 2, 6, 6, 9, 0, 6, 1, 7, 9, 5, 8, 5, 5, 4, 5, 2, 7, 5, 4, 8, 1, 7, 9, 4, 6, 4, 2, 1, 0, 4, 2, 1, 1, 2, 2, 2, 7, 3, 1, 3, 3, 9, 8, 1, 8, 5, 6, 6, 8, 7, 2, 1, 7, 5, 8, 6, 4, 9, 2, 6, 3, 6, 0, 0, 2, 0, 8, 3, 0, 9, 4, 5, 2, 3, 6, 8, 9, 8, 9, 8, 5, 0, 9, 6, 8, 5, 8, 2, 5 ]
[ "nonn", "cons" ]
A164428
[ 1, 2, 4, 8, 13, 22, 37, 62, 104, 175, 294, 494, 830, 1395, 2344, 3939, 6619, 11123, 18691, 31409, 52780, 88693, 149041, 250452, 420864, 707229, 1188441, 1997081, 3355934, 5639380, 9476526, 15924546, 26759925, 44967917, 75564988, 126980925, 213381292 ]
[ "nonn" ]
A083650
[ 1, -1, 2, -1, 0, 2, -1, 0, 0, -2, -1, 2, -2, 0, -2, 1, 0, 2, 0, -2, 0, 1, 0, 0, -2, 0, 0, 0, -1, -2, 2, 0, 2, 0, 0, 2, 3, 0, 0, -2, 0, 0, -2, 0, 2, -1, 2, 0, 0, 0, 2, -2, 0, -2, 2, 1, -2, 2, 0, 0, 0, 0, 0, 0, 0, 2, -1, 0, 0, 0, 0, -2, 2, 0, -2, 2, 0, -2, -1, 0, -2, 0, -2, 0, -2, 0, 0, 4, 0, 0, 0, 1, 0, 0, 0, -2, -2, 0, 0, 0, 2, 2, 0, 0, -2 ]
[ "sign" ]