id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A171969
[ 2, 3, 5, 7, 13, 19, 31, 47, 79, 127, 211, 331, 523, 853, 1367, 2207, 3581, 5779, 9371, 15131, 24481, 39607, 64081, 103687, 167771, 271451, 439217, 710663, 1149857, 1860503, 3010363, 4870861, 7881221, 12752053, 20633279 ]
[ "nonn" ]
A341364
[ 1, 6, 24, 77, 216, 552, 1315, 2964, 6387, 13255, 26640, 52074, 99336, 185430, 339483, 610709, 1081227, 1886484, 3247502, 5521365, 9279624, 15429149, 25397088, 41412030, 66928700, 107265576, 170556654, 269164346, 421765920, 656419080, 1015044526, 15599501...
[ "nonn" ]
A296683
[ 4, 43, 210, 1162, 6959, 39608, 226599, 1305725, 7497482, 43051551, 247361324, 1420935204, 8162170909, 46887717710, 269343435641, 1547219822419, 8887903925214, 51055949141455, 293287243303968, 1684768052870030 ]
[ "nonn" ]
A369445
[ 1, 1, 2, 7, 1, 12, 4, 1, 13, 2, 2, 28, 7, 8, 4, 31, 1, 39, 2, 14, 16, 4, 4, 12, 31, 14, 4, 56, 1, 72, 16, 3, 8, 6, 8, 13, 19, 4, 4, 2, 1, 96, 22, 4, 13, 8, 8, 124, 57, 31, 12, 14, 3, 24, 36, 8, 8, 2, ...
[ "nonn", "frac" ]
A220911
[ 1, 1, 3, 14, 84, 595, 4750, 41541, 390566, 3895957, 40835749, 446475634, 5063092427, 59282989982, 714081785678, 8821809194321, 111497133471808, 1438600278753167, 18914553873419636, 253017056507051870, 3438813481812083000, 47430059072002670000, 663174089700143800000 ]
[ "nonn" ]
A203280
[ 0, 4, 28, 64, 372, 1444, 6528, 28900, 127412, 565504, 2499460, 11062276, 48938240, 216501796, 957836180, 4237489216, 18747036420, 82938240100, 366925158784, 1623305328100, 7181627028276, 31772071235584, 140562083391108 ]
[ "nonn" ]
A276434
[ 0, 0, 1, 0, 1, 1, 3, 3, 5, 6, 10, 12, 19, 23, 34, 41, 58, 72, 98, 121, 162, 200, 262, 323, 415, 511, 650, 796, 1000, 1222, 1522, 1851, 2287, 2771, 3399, 4103, 5000, 6015, 7289, 8735, 10530, 12579, 15094, 17968, 21468, 25477, ...
[ "nonn" ]
A162987
[ 1, 11, 110, 1100, 10945, 108900, 1083555, 10781100, 107269470, 1067306625, 10619454780, 105661128375, 1051303881870, 10460231387100, 104076892111005, 1035541095642900, 10303395297584896, 102516409155629700, 1020014649794722200, 10148910738927501000 ]
[ "nonn", "easy" ]
A277427
[ 1, 2, 1, 3, 1, 2, 3, 2, 1, 4, 1, 2, 3, 4, 1, 3, 2, 4, 2, 1, 3, 4, 2, 3, 1, 4, 3, 1, 2, 4, 3, 2, 1, 5, 1, 2, 3, 4, 5, 1, 2, 4, 3, 5, 1, 3, 2, 4, 5, 1, 3, 4, 2, 5, 1, 4, 2, 3, 5, 1, 4, 3, 2, 5...
[ "nonn", "tabf" ]
A002187
[ 0, 1, 1, 2, 0, 3, 1, 1, 0, 3, 3, 2, 2, 4, 0, 5, 2, 2, 3, 3, 0, 1, 1, 3, 0, 2, 1, 1, 0, 4, 5, 2, 7, 4, 0, 1, 1, 2, 0, 3, 1, 1, 0, 3, 3, 2, 2, 4, 4, 5, 5, 2, 3, 3, 0, 1, 1, 3, 0, 2, 1, 1, 0, 4...
[ "nonn", "nice", "easy" ]
A274550
[ 12, 15, 23, 24, 28, 33, 34, 35, 38, 39, 40, 42, 45, 47, 50, 52, 53, 56, 57, 58, 59, 60, 61, 62, 63, 63, 64, 66, 69, 71, 72, 72, 73, 76, 77, 77, 79, 80, 81, 82, 82, 83, 84, 84, 85, 86, 87, 87, 88, 90, 91, 91, 94, ...
[ "nonn" ]
A388953
[ 1, 2, 0, 2, 6, 3, 1, 9, 2, 7, 2, 0, 9, 1, 1, 3, 7, 1, 5, 6, 2, 8, 4, 1, 0, 2, 2, 5, 4, 8, 1, 3, 1, 7, 5, 5, 9, 5, 4, 5, 5, 5, 8, 9, 9, 1, 0, 5, 0, 0, 0, 2, 0, 5, 7, 2, 2, 3, 4, 2, 9, 2, 8, 4...
[ "nonn", "cons" ]
A350553
[ 0, 2, 6, 22, 27, 110, 175, 502, 894, 2037, 3775, 8182, 24558, 49142, 98286, 196598, 655323, 524278, 2088950, 2097142, 6291438, 16515062, 15728575, 62914175, 100663278, 134217718, 528482294, 939524086, 2145386486, 3221225454, 11811159998, 8589934582, 47...
[ "nonn", "base" ]
A124550
[ 1, 1, 0, 1, 1, 0, 1, 2, 2, 0, 1, 3, 7, 5, 0, 1, 4, 15, 30, 16, 0, 1, 5, 26, 91, 159, 66, 0, 1, 6, 40, 204, 666, 1056, 348, 0, 1, 7, 57, 385, 1899, 5955, 8812, 2321, 0, 1, 8, 77, 650, 4345, 21180, 65794, 92062, ...
[ "nonn", "tabl" ]
A317601
[ 16, 192, 1959, 20805, 218043, 2349106, 25248997, 271168201, 2915768974, 31351577334, 337064977236, 3623995204338, 38964386368829, 418932571293710, 4504230776452201, 48428144869176300, 520684753076157200 ]
[ "nonn" ]
A033555
[ 2, 4, 8, 248, 17608, 90148, 106978, 253828, 364808 ]
[ "dead" ]
A196114
[ 11, 31, 22, 61, 19, 33, 101, 62, 29, 151, 44, 41, 211, 122, 55, 93, 281, 38, 79, 71, 361, 66, 202, 89, 451, 124, 59, 77, 109, 183, 551, 58, 302, 131, 661, 57, 88, 179, 155, 781, 82, 422, 99, 181, 303, 911, 244, 209, 110,...
[ "nonn" ]
A354445
[ 1, 0, 1, 0, 1, 0, 1, 2, 3, 4, 5, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 20, 21, 22, 23, 24, 25, 26, 29, 28, 29, 28, 29, 30, 31, 32, 33, 32, 33,...
[ "nonn" ]
A051873
[ 0, 1, 21, 60, 118, 195, 291, 406, 540, 693, 865, 1056, 1266, 1495, 1743, 2010, 2296, 2601, 2925, 3268, 3630, 4011, 4411, 4830, 5268, 5725, 6201, 6696, 7210, 7743, 8295, 8866, 9456, 10065, 10693, 11340, 12006, 12691, 13395, 14118 ]
[ "nonn", "easy" ]
A134472
[ 1, 1, 2, 5, 7, 12, 103, 115, 678, 793, 1471, 2264, 28639, 145459, 174098, 319557, 1771883, 2091440, 26869163, 28960603, 55829766, 84790369, 140620135, 366030639, 506650774, 872681413, 1379332187, 2252013600, 5883359387, 19902091761, 45687542909, 11127717...
[ "frac", "nonn" ]
A344692
[ 0, 1, 0, 0, 0, 2, 8, 8, 0, 0, 0, 0, 0, 384, 2304, 7488, 14592, 18072, 13104, 4380, 0, 0, 0, 0, 0, 0, 0, 40310784, 322486272, 1397440512, 4299816960, 10080681984, 18632540160, 27586068480, 32664453120, 30544625664, 21941452800, 11480334336, ...
[ "nonn", "tabf" ]
A210614
[ 69, 78, 87, 96, 98, 169, 178, 187, 196, 619, 696, 718, 787, 817, 872, 873, 878, 916, 961, 962, 969, 1169, 1178, 1691, 1781, 2987, 6911, 6916, 6961, 6962, 6969, 7817, 7872, 7873, 7878, 8117, 8787, 9116, 9696, 9878 ]
[ "nonn", "base" ]
A127212
[ 5, 75, 500, 4375, 34375, 281250, 2265625, 18359375, 148437500, 1201171875, 9716796875, 78613281250, 635986328125, 5145263671875, 41625976562500, 336761474609375, 2724456787109375, 22041320800781250, 178318023681640640 ]
[ "nonn", "easy" ]
A176399
[ 6, 1, 3, 9, 6, 0, 8, 7, 1, 0, 8, 3, 3, 7, 0, 1, 5, 0, 9, 6, 0, 0, 2, 3, 3, 6, 9, 4, 4, 1, 3, 6, 5, 0, 1, 3, 0, 9, 3, 0, 8, 4, 6, 5, 3, 8, 5, 9, 9, 9, 0, 2, 3, 6, 5, 9, 7, 1, 1, 5, 5, 4, 2, 6...
[ "cons", "nonn" ]
A042016
[ 23, 346, 715, 1061, 4959, 10979, 48875, 59854, 168583, 2588599, 119244137, 1791250654, 3701745445, 5492996099, 25673729841, 56840455781, 253035552965, 309876008746, 872787570457, 13401689565601, 617350507588103, 9273659303387146, 19164669114362396 ]
[ "nonn", "cofr", "frac", "easy", "less" ]
A094356
[ 4, 16, 121, 841, 1681, 5041 ]
[ "dead" ]
A036360
[ 0, 1, 12, 153, 2272, 39225, 776736, 17398969, 435538944, 12058401393, 366021568000, 12090393761721, 431832459644928, 16585599200808936, 681703972229640200, 29858718555221586000, 1.3884519670461953e+21, 6.831664761016884e+22, 3.5461790631311987e+24, 1.936709184420596e+26 ]
[ "nonn", "easy" ]
A291784
[ 1, 2, 3, 4, 5, 7, 7, 8, 9, 11, 11, 14, 13, 15, 16, 16, 17, 21, 19, 22, 22, 23, 23, 28, 25, 27, 27, 30, 29, 40, 31, 32, 34, 35, 36, 42, 37, 39, 40, 44, 41, 54, 43, 46, 48, 47, 47, 56, 49, 55, 52, 54, 53, 63, 5...
[ "nonn", "easy" ]
A358437
[ 1, 2, 10, 75, 714, 7896, 96492, 1265550, 17496050, 251958564, 3748716036, 57282665622, 895001791740, 14249639190000, 230568513719400, 3783394404776475, 62848104088770450, 1055378592304360400, 17894108081334292000, 306026774743629040000, 5.274529871824081e+21 ]
[ "nonn" ]
A380722
[ 1, 3, 33, 679, 20905, 863601, 44912347, 2820755183, 207815625073, 17578781394913, 1679410405425571, 178871724214036770, 21017369600310686000, 2.700840226820242e+21, 3.768267638177252e+23, 5.673056913967556e+25, 9.166624006966363e+27, 1.582356756863532e+30 ]
[ "nonn" ]
A348853
[ 1, 1, 1, 4, 1, 6, 4, 1, 9, 6, 4, 12, 1, 14, 9, 6, 17, 4, 19, 12, 1, 22, 14, 9, 25, 6, 27, 17, 4, 30, 19, 12, 33, 1, 35, 22, 14, 38, 9, 40, 25, 6, 43, 27, 17, 46, 4, 48, 30, 19, 51, 12, 53, 33, 1, 56, 35, ...
[ "base", "easy", "nonn" ]
A330201
[ 1, 0, 1, 2, 21, 44, 1045, 2694, 74473, 421784, 8776521, 52518410, 1843753021, 11476952772, 387068115421, 4277646186254, 125796357803985, 1343857519264304, 53205974734877710, 621203524858308100, 25357790175078683000, 388778926109137200000 ]
[ "nonn" ]
A065025
[ 9, 63, 513, 3423, 18589, 73035, 225479, 617215, 1622001, 4300263, 12128763, 37076783, 122411649, 427600575, 1550703157, 5759666431, 21738733961, 82999762711, 319722139579, 1240393764207, 4840363237201, 18979321319087, 74713018378209, 295061102101311 ]
[ "nonn", "base", "easy" ]
A237193
[ 9, 0, 9, 6, 6, 4, 8, 4, 5, 6, 5, 3, 2, 1, 9, 5, 1, 0, 0, 5, 5, 1, 3, 0, 2, 8, 7, 1, 9, 0, 0, 8, 4, 9, 6, 8, 1, 7, 6, 3, 8, 0, 3, 3, 8, 5, 4, 9, 1, 3, 9, 6, 6, 3, 0, 2, 2, 5, 2, 0, 4, 2, 2, 8...
[ "nonn", "cons", "easy" ]
A217539
[ 0, 0, 0, 1, 4, 17, 66, 252, 946, 3523, 13054, 48248, 178146, 657813, 2430962, 8995521, 33342588, 123822171, 460772982, 1718304786, 6421729878, 24051429321, 90272123682, 339522804129, 1279556832780, 4831639423695, 18278491474726, 69272752632502, 262981858878706...
[ "nonn" ]
A220236
[ 9, 51, 231, 975, 3999, 16191, 65151, 261375, 1047039, 4191231, 16771071, 67096575, 268410879, 1073692671, 4294868991, 17179672575, 68719083519, 274877120511, 1099510054911, 4398043365375, 17592179752959, 70368731594751, 281474951544831, 1125899856510975 ]
[ "base", "easy", "nonn" ]
A070945
[ 1, 1, 2, 6, 24, 96, 456, 2472, 14736, 92304, 632736, 4661856, 36364032, 297668736, 2583425664, 23550535296, 224086162176, 2221083839232, 22976670905856, 246829966447104, 2745834333566976, 31605782067081216, 376290722808502300 ]
[ "nonn" ]
A388033
[ 2, 1, 3, 5, 5, 25, 15, 25, 50, 1, 1, 5, 15, 25, 25, 7, 125, 35, 375, 7, 21, 35, 5, 49, 14, 175, 105, 4375, 7, 49, 21, 49, 35, 175, 175, 343, 105, 49, 13125, 343, 7, 1715, 105, 1225, 1225, 1225, 875, 2401, 26250, 343, ...
[ "nonn" ]
A198755
[ 1, 3, 2, 5, 6, 2, 2, 5, 1, 8, 1, 4, 7, 5, 3, 6, 6, 2, 3, 4, 8, 3, 2, 2, 9, 0, 2, 9, 3, 8, 7, 9, 8, 7, 4, 4, 3, 3, 0, 4, 5, 4, 6, 7, 2, 5, 6, 5, 7, 6, 6, 4, 9, 5, 2, 6, 2, 7, 4, 0, 1, 8, 5, 3...
[ "nonn", "cons" ]
A098264
[ 1, 1, 11, 31, 211, 851, 4901, 22961, 124531, 623011, 3313201, 17086301, 90453661, 473616781, 2509264811, 13250049551, 70368250451, 373539254611, 1989045489281, 10597110956861, 56566637447401, 302196871378601, 1616570627763311, 8654955238504531, 46384344189261660 ]
[ "easy", "nonn" ]
A343432
[ 6000, 331776, 32400000, 101154816, 301056000000, 89904012853248, 208971104256000, 12418325780889600, 4982259375000000000, 375291866372898800000, 2.0155086491915078e+29, 4.382012953869665e+35, 2.178926270368513e+40 ]
[ "nonn", "fini", "full" ]
A351980
[ 1, 6, 84, 126, 140, 210, 490, 525, 686, 875, 1404, 1456, 2106, 2184, 2288, 2340, 3432, 3510, 5460, 6760, 7644, 8190, 8580, 8775, 9100, 9464, 11466, 12012, 12740, 12870, 13650, 14300, 14625, 15808, 18018, 18468, 19110, 19152, 20020, 20672,...
[ "nonn" ]
A239436
[ 1288, 1485, 5775, 6128, 8008, 11685, 16744, 19305, 21896, 25245, 24472, 28215, 26488, 35505, 32620, 45441, 37352, 43065, 39928, 46035, 47656, 54945, 50260, 65637, 52808, 60885, 55384, 63855, 62744, 75495, 72772, 79365, 68264, 78705, 75075, 79664,...
[ "nonn" ]
A357999
[ 1, 0, 5, 12, 14, 41, 74, 87, 128, 185, 185, 162, 167, 159, 119, 67, 26, 7, 1 ]
[ "nonn", "base", "easy", "fini", "full" ]
A171841
[ 1, 3, 8, 22, 68, 241, 974, 4410, 21969, 118698, 688301, 4250788, 27795353, 191545796, 1385868437, 10493852359, 82932266786, 682421525516, 5834572402059, 51734224244654, 474927065933637, 4507051910145879, 44154041028202660, 445971555581890000, 4638671662416764000 ]
[ "nonn" ]
A301100
[ 1, 4, 12, 24, 32, 40, 66, 108, 136, 168, 196, 240, 298, 368, 418, 474, 544, 594, 644, 774, 854, 938, 1036, 1098, 1172, 1286, 1420, 1572, 1672, 1756, 1840, 2006, 2184, 2312, 2420, 2546, 2698, 2878, 3056, 3226, 3336, 3506, 3694, 388...
[ "nonn" ]
A321524
[ 0, 1, 2, 3, 4, 7, 6, 5, 8, 9, 10, 19, 12, 13, 22, 21, 14, 23, 18, 11, 20, 15, 16, 25, 24, 17, 26, 27, 28, 55, 30, 31, 58, 57, 32, 59, 36, 37, 64, 39, 40, 67, 66, 41, 68, 63, 38, 65, 42, 43, 70, 69, 44, 71, 54...
[ "nonn", "base" ]
A177433
[ 3, 5, 7, 5, 11, 17, 19, 13, 71, 107, 109, 73, 179, 269, 271, 181, 347, 521, 523, 349, 1427, 2141, 2143, 1429, 2111, 3167, 3169, 2113, 3767, 5651, 5653, 3769, 5879, 8819, 8821, 5881, 10091, 15137, 15139, 10093, 10427, 15641, 15643, ...
[ "nonn", "tabf" ]
A343720
[ 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 4, 4, 1, 0, 1, 4, 3, 4, 1, 0, 1, 4, 2, 2, 4, 1, 0, 1, 4, 1, 0, 1, 4, 1, 0, 1, 4, 0, 7, 7, 0, 4, 1, 0, 1, 4, 9, 6, 5, 6, 9, 4, 1, 0, 1, 4, 9, 5, 3, 3, 5, 9...
[ "nonn", "tabl" ]
A378965
[ 1, 91, 3321, 114003, 3879505, 131828203, 4478506761, 152138726691, 5168245923361, 175568267678203, 5964153117476505, 202605639255558000, 6882627590483365000, 233806732489121040000, 7.942546277342373e+21, 2.6981276669891605e+23, 9.165691521496088e+24, 3.11363698964228e+26 ]
[ "nonn", "easy", "changed" ]
A253757
[ 512, 2992, 16544, 82064, 423232, 2154496, 11244672, 58351744, 305405312, 1594118656, 8346515200, 43652413696, 228566467584, 1196268052480, 6263749533696, 32791986405376, 171701217935360, 898982481903616 ]
[ "nonn" ]
A171357
[ 0, 3, 122, 1678, 8708, 31888, 87237, 211421, 446696, 870716, 1576708, 2718854, 4439585, 7025582, 10718165, 15900659, 23007806, 32631672, 45287113, 61897265, 83153605, 110234586, 144275841, 186746768, 238863948, 302821142, 380334101 ]
[ "nonn" ]
A032931
[ 1, 2, 12, 13, 23, 24, 133, 134, 144, 145, 254, 255, 265, 266, 1464, 1465, 1475, 1476, 1585, 1586, 1596, 1597, 2795, 2796, 2806, 2807, 2916, 2917, 2927, 2928, 16105, 16106, 16116, 16117, 16226, 16227, 16237, 16238, 17436, 17437 ]
[ "nonn", "base" ]
A031799
[ 7303, 9487, 15311, 16219, 23363, 24231, 28487, 28779, 29503, 29987, 32287, 32431, 35800, 38311, 38363, 38776, 39976, 40003, 41567, 42136, 47759, 50200, 53679, 54863, 57187, 59944, 59987, 68375, 68696, 68735, 69459, 72847, 76235, 77031, 77063, 774...
[ "nonn" ]
A319450
[ 1, 2, 3, 4, 5, 6, 9, 10, 13, 17, 18, 22, 25, 26, 37, 46, 49, 53, 58, 61, 73, 81, 82, 97, 106, 121, 157, 162, 166, 178, 193, 226, 241, 242, 250, 262, 277, 313, 337, 346, 358, 361, 382, 397, 421, 457, 466, 478, 486, 502,...
[ "nonn" ]
A198113
[ 4, 6, 3, 9, 0, 2, 3, 8, 2, 5, 9, 7, 4, 1, 1, 9, 0, 9, 7, 5, 6, 7, 0, 3, 1, 6, 9, 5, 3, 5, 3, 5, 0, 5, 8, 9, 7, 2, 0, 7, 5, 7, 5, 8, 2, 7, 1, 2, 0, 1, 4, 2, 0, 1, 5, 3, 6, 2, 2, 5, 6, 8, 9, 2...
[ "nonn", "cons" ]
A098784
[ 1, 9, 2, 8, 3, 7, 4, 6, 5, 51, 91, 92, 81, 93, 71, 94, 61, 95, 52, 82, 83, 72, 84, 62, 85, 53, 73, 74, 63, 75, 54, 64, 65, 55, 56, 41, 96, 42, 86, 43, 76, 44, 66, 45, 57, 31, 97, 32, 87, 33, 77, 34, 67, 35, 5...
[ "base", "easy", "nonn" ]
A000910
[ 0, 0, 0, 0, 0, 0, 5, 35, 140, 420, 1050, 2310, 4620, 8580, 15015, 25025, 40040, 61880, 92820, 135660, 193800, 271320, 373065, 504735, 672980, 885500, 1151150, 1480050, 1883700, 2375100, 2968875, 3681405, 4530960, 5537840, 6724520, 8115800, 9738...
[ "nonn", "easy" ]
A034336
[ 0, 0, 0, 0, 0, 1, 6, 25, 95, 334, 1123, 3621 ]
[ "nonn" ]
A318098
[ 0, 1, 1, 1, 5, 1, 2, 16, 16, 2, 3, 50, 45, 50, 3, 5, 160, 220, 220, 160, 5, 8, 511, 795, 1563, 795, 511, 8, 13, 1634, 3310, 9193, 9193, 3310, 1634, 13, 21, 5226, 12774, 57744, 73788, 57744, 12774, 5226, 21, 34, 16716, 5129...
[ "nonn", "tabl" ]
A228595
[ 12, 34, 56, 78, 910, 1, 11, 2, 131, 4, 151, 6, 171, 8, 1920, 212, 22, 3, 242, 5, 262, 7, 282, 9, 303, 13, 23, 33, 43, 53, 63, 73, 83, 940, 414, 24, 344, 454, 64, 74, 84, 950, 515, 25, 35, 45, 55, 65, 75, 85, 960, 6...
[ "nonn", "base" ]
A271161
[ 1, 4, 32, 200, 860, 3448, 14048, 57108, 227420, 904432, 3618540, 14438616, 57738456, 230833880, 923143832, 3692116492 ]
[ "nonn", "more" ]
A385146
[ 0, 5, 11310, 55089888425, 121583358792810, 592213938425857800000, 1.3070158937714504e+24, 6.36627444512872e+30, 1.40503648158156e+34, 6.843717731201809e+40, 1.5104081931847513e+44 ]
[ "nonn" ]
A148292
[ 1, 1, 2, 5, 13, 35, 109, 330, 1066, 3545, 12002, 41340, 146669, 520408, 1892267, 6920385, 25633619, 95666879, 361061450, 1367616912, 5237966081, 20117499658, 77914834275, 302809077698, 1184609064244, 4647630453801, 18345208193807, 72570711986662, 2886158075657...
[ "nonn", "walk" ]
A288558
[ 1, 1, 1, 2, 1, 1, 0, 0, 0, 0, 3, 3, 6, 7, 9, 7, 5, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 4, 6, 15, 18, 28, 35, 44, 47, 49, 42, 31, 18, 9, 3, 1 ]
[ "nonn", "tabf", "more" ]
A123012
[ 1, 2, 25, 92, 709, 3350, 21589, 113528, 680425, 3744938, 21778801, 122201300, 701757421, 3969742142, 22676390125, 128717365232, 733638923089, 4170342516050, 23747102416969, 135071397670988, 768831946098325, 4374163243287398, 24893797354639620, 141645022818314600 ]
[ "nonn", "easy" ]
A260680
[ 1, 1, 1, 10, 3, 35, 19, 71, 18, 380 ]
[ "hard", "nonn", "more" ]
A134174
[ 1, 1, 4, 44, 1546, 180096, 69656776, 90247564712, 398349418563148, 6107204301234263000, 3.311557046625519e+23, 6.449401224441627e+28, 4.567997043000842e+34, 1.188417462713308e+41, 1.1446927207833636e+48 ]
[ "easy", "nonn" ]
A109265
[ 1, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2, 2, 0, -2, -2, 0, 2...
[ "sign", "easy" ]
A028154
[ 1, 34, 743, 13316, 213453, 3189558, 45453091, 626299192, 8418437225, 111046371722, 1443490546719, 18546769677228, 236067224376517, 2981598548144926, 37417475152222424, 467041996357853060 ]
[ "nonn", "easy" ]
A348180
[ 1, 1, 4, 1, 9, 40, 1, 19, 56, 279, 1428, 1, 33, 289, 1561, 6345, 35689, 202421, 1, 55, 1358, 4836, 7652, 129505, 615395, 757560, 3620918, 21341449, 125952538, 1, 85, 5771, 80605, 33435, 2362185, 10691648, 53822709, 14039541, 321134138, 16...
[ "nonn", "tabf" ]
A121897
[ 1, 1, 1, 1, 1, 3, 11, 131, 17291, 298995971, 29799530324409600, 8.072836432321886e+31, 4.9748616842002716e+61 ]
[ "nonn" ]
A158640
[ 51, 207, 467, 831, 1299, 1871, 2547, 3327, 4211, 5199, 6291, 7487, 8787, 10191, 11699, 13311, 15027, 16847, 18771, 20799, 22931, 25167, 27507, 29951, 32499, 35151, 37907, 40767, 43731, 46799, 49971, 53247, 56627, 60111, 63699, 67391, 71187, 7...
[ "nonn", "easy" ]
A263829
[ 1, 3, 5, 13, 7, 19, 9, 43, 18, 33, 13, 93, 15, 51, 35, 137, 19, 110, 21, 175, 45, 99, 25, 355, 38, 129, 58, 285, 31, 289, 33, 455, 65, 201, 63, 626, 39, 243, 75, 721, 43, 483, 45, 589, 126, 339, 49, 1305, 66, 498, 95...
[ "nonn" ]
A360529
[ 12, 20, 18, 28, 45, 24, 40, 63, 44, 36, 52, 56, 60, 99, 68, 175, 48, 76, 117, 50, 84, 88, 75, 92, 54, 80, 153, 104, 72, 275, 98, 171, 116, 90, 124, 147, 325, 132, 136, 207, 140, 96, 148, 135, 152, 539, 156, 100, 164, 1...
[ "nonn" ]
A183144
[ 0, 0, 1, 2, 4, 6, 8, 11, 14, 18, 22, 27, 32, 37, 43, 49, 56, 63, 71, 79, 87, 96, 105, 115, 125, 135, 146, 157, 169, 181, 194, 207, 220, 234, 248, 263, 278, 294, 310, 326, 343, 360, 378, 396, 415, 434, 453, 473, 493, 51...
[ "nonn" ]
A219722
[ 1459, 3391, 8317, 18523, 79939, 593209, 942199, 1229257, 1953811, 3254443, 4248091, 5902063, 7699213, 9678007, 11459953, 11901709, 15060403, 18203203, 18782947, 19344499, 20177737, 30866599, 33623353, 34476301, 37032643, 43528897, 48480517, 50183083, 55243009 ...
[ "nonn" ]
A225053
[ 1, 6, 9, 4 ]
[ "nonn", "hard", "more" ]
A325980
[ 1, 2, 3, 4, 2, 5, 2, 6, 7, 8, 9, 10, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 14, 28, 23, 29, 30, 31, 26, 32, 33, 34, 35, 36, 26, 37, 15, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, ...
[ "nonn" ]
A334810
[ 0, 0, 0, 0, 1, 0, 1, 0, 1, 4, 1, 3, 2, 1, 1, 4, 7, 2, 4, 3, 1, 4, 3, 4, 6, 5, 2, 2, 0, 1, 8, 7, 8, 3, 8, 5, 5, 7, 5, 6, 7, 2, 8, 4, 3, 1, 7, 14, 10, 7, 4, 6, 3, 7, 8, 11, 14, 8, 6, 5, 3, 8, 14...
[ "nonn" ]
A016959
[ 64, 1000, 4096, 10648, 21952, 39304, 64000, 97336, 140608, 195112, 262144, 343000, 438976, 551368, 681472, 830584, 1000000, 1191016, 1404928, 1643032, 1906624, 2197000, 2515456, 2863288, 3241792 ]
[ "nonn", "easy" ]
A176410
[ 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 1, -191, 2113, -191, 1, 1, 1, 1, 1, 1, 1, 1, 7681, -337919, 7681, -337919, 7681, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -430079, 47738881, -430079, 180203521, -430079, 47738881, -430079, 1, 1, 1, 1, ...
[ "less", "sign", "tabl" ]
A119440
[ 1, 2, 3, 1, 6, 2, 12, 3, 1, 24, 6, 2, 48, 12, 3, 1, 96, 24, 6, 2, 192, 48, 12, 3, 1, 384, 96, 24, 6, 2, 768, 192, 48, 12, 3, 1, 1536, 384, 96, 24, 6, 2, 3072, 768, 192, 48, 12, 3, 1, 6144, 1536, 384, 96, 24, ...
[ "nonn", "tabf" ]
A333604
[ 1, 1, 64, 264, 6820, 52387, 909009, 8934966, 130373192, 1440623260, 19338414411, 226336038320, 2916455246831, 35119270968805, 443497762883269, 5416278334971240, 67721300861621624, 832844111255909500, 10362230473284966000 ]
[ "nonn" ]
A340768
[ 4, 3, 4, 9, 5, 3, 7, 5, 4, 3, 4, 7, 11, 3, 25, 13, 9, 4, 3, 4, 11, 17, 7, 3, 19, 13, 4, 3, 4, 5, 23, 3, 49, 5, 17, 4, 3, 11, 4, 19, 29, 3, 31, 7, 4, 13, 3, 4, 23, 5, 3, 37, 5, 4, 11, 3, 4, 9, 41, 3,...
[ "nonn", "easy" ]
A267322
[ 1, 1, 1, 3, 4, 5, 6, 9, 12, 10, 16, 22, 15, 25, 35, 21, 36, 51, 28, 49, 70, 36, 64, 92, 45, 81, 117, 55, 100, 145, 66, 121, 176, 78, 144, 210, 91, 169, 247, 105, 196, 287, 120, 225, 330, 136, 256, 376, 153, 289, 425,...
[ "nonn", "easy" ]
A176057
[ 2, 0, 9, 5, 4, 4, 5, 1, 1, 5, 0, 1, 0, 3, 3, 2, 2, 2, 6, 9, 1, 3, 9, 3, 9, 5, 6, 5, 6, 0, 1, 6, 0, 4, 2, 6, 7, 9, 0, 5, 4, 8, 9, 3, 8, 9, 9, 9, 5, 9, 6, 6, 5, 0, 8, 4, 5, 3, 7, 8, 8, 8, 9, 9...
[ "cons", "nonn" ]
A244237
[ -1, 3, -11, 2, -61, 2, -83, 2, -61, 2, -127, 2, -6151, 2, -5, 2, -4637, 2, 42271, 2, -175241, 2, 854237, 2, -236369551, 2, 8553091, 2, -23749462769, 2, 8615841247361, 2, -7709321042237, 2, 2577687858355, 2, -26315271553057317000, 2 ]
[ "sign", "frac" ]
A292720
[ 1, 1, 4, 14, 67, 343, 1431, 6620, 31539, 151680, 769374, 3586756, 17500630, 85727012, 420986605, 2116435479, 10254063794, 50697425138, 251055167912, 1244053731675, 6246442090103, 30737278735067, 152890117563022, 761050222982081, 3790169351183134 ]
[ "nonn" ]
A295149
[ 5, 11, 23, 33, 45, 47, 49, 61, 73, 85, 95, 105, 117, 153, 163, 165, 187, 191, 195, 217, 219, 229, 257, 259, 269, 271, 273, 283, 285, 313, 325, 339, 353, 363, 365, 367, 369, 381, 383, 385, 397, 399, 401, 403, 413, 427, 441, ...
[ "nonn" ]
A202245
[ 4, 8, 8, 2, 9, 2, 4, 4, 4, 7, 8, 7, 8, 1, 8, 0, 4, 1, 9, 2, 9, 7, 6, 3, 3, 3, 4, 5, 8, 5, 0, 3, 5, 4, 5, 9, 2, 0, 9, 8, 3, 1, 6, 4, 6, 0, 5, 6, 4, 9, 6, 7, 0, 2, 0, 1, 6, 4, 1, 5, 2, 1, 9, 0...
[ "nonn", "cons" ]
A186203
[ 3, 5, 3, 9, 3, 2, 4, 17, 3, 2, 7, 3, 5, 32, 3, 2, 6, 3, 3, 10, 3, 4, 6, 58, 3, 2, 6, 3, 3, 13, 4, 3, 4, 16, 2, 4, 5, 7, 103, 3, 2, 6, 3, 3, 12, 3, 4, 3, 4, 22, 3, 7, 2, 4, 5, 25, 3, 5, 6, 8, 178, ...
[ "nonn", "look" ]
A212817
[ 1, 8, 56, 168, 536, 624, 2328, 1600, 4184, 4872, 7824, 6432, 19320, 10672, 21568, 22320, 33752, 23184, 62904, 32992, 66000, 61248, 83040, 58944, 155832, 75320, 136912, 130728, 179776, 117168, 291024, 142720, 269528, 236448, 307440, 207744, 5280...
[ "nonn" ]
A349256
[ 1, 2, 19, 206, 2563, 34415, 486370, 7128488, 107364421, 1651615568, 25840137724, 409898503763, 6577319627506, 106571487893024, 1741193467526782, 28653852176675324, 474521786894159600, 7902112425718228000, 132243695376774530000, 2.2229256646527783e+21 ]
[ "nonn" ]
A320513
[ 3, 97, 217, 241, 337, 577, 889, 1249, 1393, 1501, 3361, 3697, 3937, 4039, 4801, 5587, 6961, 7471, 8191, 9481, 10657, 14449, 16177, 16561, 17887, 18049, 18157, 22459, 23527, 23761, 24301, 25273, 25537, 29617, 29977, 30607, 31249, 32257, 3360...
[ "nonn" ]
A051129
[ 1, 1, 2, 1, 4, 3, 1, 8, 9, 4, 1, 16, 27, 16, 5, 1, 32, 81, 64, 25, 6, 1, 64, 243, 256, 125, 36, 7, 1, 128, 729, 1024, 625, 216, 49, 8, 1, 256, 2187, 4096, 3125, 1296, 343, 64, 9, 1, 512, 6561, 16384, 15625, 7776, 2...
[ "nonn", "tabl", "easy", "nice" ]
A112078
[ 361, 5711, 8399, 9239, 10391, 10799, 13439, 14951, 17111, 18001, 19631, 21479, 27719, 28681, 32471, 32639, 33049, 34319, 36599, 37129, 37489, 40031, 41159, 42719, 44641, 45049, 45239, 47519, 48551, 49009, 49921, 51769, 53089, 54911 ]
[ "nonn" ]
A268684
[ 0, 2, 14, 44, 100, 190, 322, 504, 744, 1050, 1430, 1892, 2444, 3094, 3850, 4720, 5712, 6834, 8094, 9500, 11060, 12782, 14674, 16744, 19000, 21450, 24102, 26964, 30044, 33350, 36890, 40672, 44704, 48994, 53550, 58380, 63492, 68894, 74594, ...
[ "nonn", "easy" ]
A033739
[ 1, 2, 0, 2, 6, 0, 0, 4, 0, 4, 4, 0, 10, 16, 0, 0, 14, 0, 4, 4, 0, 16, 8, 0, 0, 14, 0, 4, 24, 0, 12, 16, 0, 0, 12, 0, 20, 40, 0, 28, 52, 0, 0, 40, 0, 24, 16, 0, 58, 30, 0, 0, 60, 0, 4, 48, 0, 40, 20, ...
[ "nonn" ]
A134259
[ 6, 14, 40, 42, 44, 49, 53, 56, 68, 71, 100, 115, 128, 132, 142, 152, 153, 162, 163, 182, 185, 203, 209, 248, 249, 259, 274, 280, 305, 306, 308, 317, 323, 328, 330, 335, 341, 348, 355, 358, 363, 365, 368, 381, 388, 397, 398, ...
[ "nonn", "base" ]