id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A040414
[ 20, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 40, 1, 5, 1, 4...
[ "nonn", "cofr", "easy", "mult" ]
A364150
[ 1, 6, 12, 16, 21, 22, 27, 33, 31, 32, 36, 37, 41, -1, 42, 43, 47, -1, 49, 48, -1, 54, 52, -1, 60, 59, 57, -1, 58, 61, 62, 63, 65, 64, -1, -1, 69, 67, 70, -1, 68, 72, -1, 75, -1, 73, 76, 74, -1, -1, -1, 77, 80, ...
[ "sign" ]
A085615
[ 1, 1, 2, 8, 48, 352, 2880, 25216, 231168, 2190848, 21292032, 211044352 ]
[ "dead" ]
A201744
[ 2, 3, 5, 6, 3, 5, 3, 4, 8, 9, 8, 5, 7, 1, 5, 4, 3, 6, 2, 4, 2, 0, 2, 5, 9, 2, 3, 5, 5, 6, 8, 1, 4, 8, 9, 7, 8, 8, 6, 9, 7, 2, 1, 5, 1, 5, 0, 5, 4, 4, 6, 8, 0, 3, 2, 0, 4, 3, 9, 2, 1, 8, 0, 9...
[ "nonn", "cons" ]
A017386
[ 3486784401, 6131066257801, 420707233300201, 8140406085191601, 79792266297612000, 511116753300641400, 2446194060654760000, 9468276082626847000, 31181719929966182000, 90438207500880450000 ]
[ "nonn", "easy" ]
A288583
[ 1, 2, 3, 6, 11, 19, 28, 42, 56 ]
[ "nonn", "more" ]
A044363
[ 31, 131, 231, 310, 331, 431, 531, 631, 731, 831, 931, 1031, 1131, 1231, 1310, 1331, 1431, 1531, 1631, 1731, 1831, 1931, 2031, 2131, 2231, 2310, 2331, 2431, 2531, 2631, 2731, 2831, 2931, 3031, 3100, 3231, 3310, 3331, 3431 ]
[ "nonn", "base" ]
A143854
[ 1, 20, 71, 154, 269, 416, 595, 806, 1049, 1324, 1631, 1970, 2341, 2744, 3179, 3646, 4145, 4676, 5239, 5834, 6461, 7120, 7811, 8534, 9289, 10076, 10895, 11746, 12629, 13544, 14491, 15470, 16481, 17524, 18599, 19706, 20845, 22016, 23219, 24...
[ "nonn", "easy" ]
A154706
[ 1, 13, 13, 118, 228, 118, 846, 3234, 3234, 846, 5279, 38932, 63258, 38932, 5279, 30339, 405927, 1082454, 1082454, 405927, 30339, 165820, 3796728, 16512132, 24852880, 16512132, 3796728, 165820, 878188, 32837380, 226681452, 509876260, 509876260, 226681...
[ "nonn", "tabl" ]
A226005
[ 0, 0, 1, 1, 0, 2, 1, 2, 2, 0, 3, 1, 3, 2, 3, 3, 0, 4, 1, 4, 2, 4, 3, 4, 4, 0, 5, 1, 5, 2, 5, 3, 5, 4, 5, 5, 0, 6, 1, 6, 2, 6, 3, 6, 4, 6, 5, 6, 6, 0, 7, 1, 7, 2, 7, 3, 7, 4, 7, 5, 7, 6, 7, 7...
[ "nonn" ]
A344647
[ 292965218, 779888018, 1010431058, 1110995522, 1500533762, 1665914642, 2158376402, 2373191618, 2636686962, 2689817858, 3019732898, 3205282178, 3642994082, 3831800882, 4324686002, 4687443488, 5064808658, 5175310322, 5745705602, 6317554418, 6450435362, 6720346178, 7018992162...
[ "nonn" ]
A186334
[ 1, 1, 3, 5, 12, 24, 56, 123, 291, 677, 1637, 3954, 9757, 24171, 60648, 152929, 388822, 993216, 2551808, 6582899, 17055507, 44341141, 115671498, 302627130, 793951897, 2088103609, 5504504961, 14541271283, 38489869502, 102066761622, 271122837895 ]
[ "nonn", "easy" ]
A170939
[ 2, 4, 14, 58, 242, 994, 4034, 16258, 65282, 261634, 1047554, 4192258, 16773122, 67100674, 268419074, 1073709058, 4294901762, 17179738114, 68719214594, 274877382658, 1099510579202, 4398044413954, 17592181850114, 70368735789058, 281474959933442, 1125899873288194 ]
[ "nonn" ]
A270101
[ 3, 1, 35, -31, 91, -79, 175, -167, 291, -279, 435, -423, 587, -551, 755, -727, 979, -967, 1251, -1239, 1531, -1495, 1827, -1807, 2171, -2151, 2547, -2519, 2883, -2807, 3211, -3127, 3651, -3687, 4283, -4311, 4875, -4867, 5475, -5463, 605...
[ "sign", "easy" ]
A352227
[ 0, 2, 2, 4, 4, 6, 8, 8, 8, 10, 12, 14, 16, 16, 16, 16, 16, 18, 20, 22, 24, 26, 28, 30, 32, 32, 32, 32, 32, 32, 32, 32, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 64, 64, 64, 64, 64, 6...
[ "nonn" ]
A089909
[ 0, 36, 748, 11460, 154572, 1945684, 23456796, 274567908, 3145679020, 35456790132, 394567901244, 4345679012356, 47456790123468, 514567901234580, 5545679012345692, 59456790123456800, 634567901234568000 ]
[ "nonn", "base", "easy" ]
A162942
[ 0, 49, 147, 294, 490, 735, 1029, 1372, 1764, 2205, 2695, 3234, 3822, 4459, 5145, 5880, 6664, 7497, 8379, 9310, 10290, 11319, 12397, 13524, 14700, 15925, 17199, 18522, 19894, 21315, 22785, 24304, 25872, 27489, 29155, 30870, 32634, 34447, 363...
[ "nonn", "easy" ]
A359803
[ 1, 1, 2, 1, 4, 2, 1, 7, 22, 11, 34, 17, 52, 26, 13, 40, 20, 10, 5, 16, 8, 4, 2, 1, 24, 12, 6, 3, 10, 5, 16, 8, 4, 2, 1, 35, 106, 53, 160, 80, 40, 20, 10, 5, 16, 8, 4, 2, 1, 49, 148, 74, 37, 112, 56, 28, 1...
[ "nonn", "look", "easy" ]
A067342
[ 1, 3, 4, 7, 6, 3, 8, 6, 4, 9, 3, 10, 5, 6, 6, 4, 9, 12, 2, 6, 5, 9, 6, 6, 4, 6, 4, 11, 3, 9, 5, 9, 12, 9, 12, 10, 11, 6, 11, 9, 6, 15, 8, 12, 15, 9, 12, 7, 12, 12, 9, 17, 9, 3, 9, 3, 8, 9, 6, 15, ...
[ "nonn", "base" ]
A136508
[ 1, 1, 3, 7, 23, 81, 361, 1923, 13113, 114433, 1315783, 20286135, 420198791, 12003852369, 464295025509, 25153926114307, 1847231277588405, 191568316434991870, 26902669460380226000, 5.357197471644243e+21 ]
[ "nonn" ]
A283556
[ 0, 2, 5, 1, 8, 1, 5, 4, 5, 1, 3, 7, 8, 4, 2, 4, 3, 8, 6, 1, 9, 1, 8, 1, 9, 7, 9, 4, 3, 4, 9, 1, 6, 8, 3, 8, 6, 1, 2, 7, 9, 8, 9, 2, 6, 5, 6, 1, 8, 1, 5, 4, 9, 7, 6, 2, 4, 3, 4, 2, 4, 8, 4, 5...
[ "nonn", "base" ]
A132219
[ 1, 2, 8, 66, 774, 11885, 230858, 5512821, 157926273, 5323010347, 207833183972, 9280406921629, 468879370270319, 26561064972285450, 1673867356632729300, 116555375609273660000, 8.914259769349445e+21, 7.448768857213669e+23 ]
[ "nonn" ]
A237102
[ 385, 3787, 39235, 435113, 4975145, 58074637, 685334343, 8138935643, 96985032775, 1157886143543, 13837852902565, 165468874704391, 1979225480289719, 23678093331580256, 283293856876960540, 3389604656842347000 ]
[ "nonn" ]
A246104
[ 2, 3, 5, 5, 8, 8, 8, 13, 13, 13, 13, 13, 21, 21, 21, 21, 21, 21, 21, 21, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, ...
[ "nonn", "easy" ]
A024113
[ 1, 8, -4015, -530712, -16770655, -244081576, -2176250895, -13836504232, -68676430015, -282042115992, -996513215599, -3107047317112, -8633670911775, -20756219294152, -33817119920335, 76144794204024, 1571545212141185, 16094559462436808, 148937803915572960 ]
[ "sign", "easy" ]
A369715
[ 1, 0, 1, 2, 2, 2, 3, 3, 3, 4, 3, 5, 5, 6, 6, 6, 7, 6, 8, 8, 9, 8, 10, 10, 10, 11, 11, 11, 12, 11, 13, 13, 14, 13, 14, 15, 16, 15, 16, 17, 17, 17, 18, 18, 18, 19, 19, 20, 19, 21, 21, 22, 22, 22, 23, 23, 24...
[ "nonn", "base" ]
A072605
[ 1, 1, 2, 4, 13, 50, 270, 1641, 11945, 96784, 887982, 8939051, 99298354, 1195617443, 15619182139, 219049941201, 3293800835940, 52746930894774, 897802366250126, 16167544246362568, 307372573011579200, 6148811682561391000, 129164845357784000000 ]
[ "easy", "nonn" ]
A261691
[ 0, 1, 2, 6, 7, 8, 21, 22, 23, 63, 64, 65, 69, 70, 71, 192, 193, 194, 207, 208, 209, 213, 214, 215, 579, 580, 581, 621, 622, 623, 627, 628, 629, 642, 643, 644, 1737, 1738, 1739, 1743, 1744, 1745, 1866, 1867, 1868, 1881, 1882,...
[ "nonn", "base", "easy" ]
A352582
[ 3, 3, 11, 76, 49, 2432, 113, 9980, 55, 748, 166, 9420, 384, 39780, 130, 2388, 271, 10640, 867, 82592, 1054, 103040, 548, 11828, 578, 12332, 4874, 1113600, 2461, 196380, 1137, 27932, 2426, 128944, 1393, 35708, 16086, 5861020, 2052, 54268, ...
[ "nonn", "tabf" ]
A247763
[ 1, 1, 1, 1, 1, 0, 1, 2, 1, 0, 0, 1, 0, 1, 1, 1, 4, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 2, 2, 1, 1, 1, 0, 0, 0, 0, 2, 0, 0, 0, 1, 0, 1, 2, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1...
[ "nonn" ]
A282469
[ 1, 0, 0, 5, 3, 3, 0, 0, 9, 3, 9, 4, 6, 8, 9, 1, 3, 4, 6, 5, 7, 3, 3, 8, 4, 4, 0, 0, 6, 0, 8, 0, 1, 0, 0, 3, 2, 6, 1, 2, 7, 0, 9, 8, 9, 2, 2, 0, 3, 8, 8, 3, 7, 1, 7, 4, 1, 8, 0, 3, 8, 2, 0, 6...
[ "nonn", "cons" ]
A163589
[ 1427, 2857, 5717, 11437, 22877, 45757, 183037, 366077, 732157, 23429117, 1499463677, 191931351037, 98268851732477, 393075406929917, 6289206510878717, 50313652087029760, 100627304174059520, 201254608348119040, 12880294934279619000, 4.2206150440647454e+23 ]
[ "nonn", "easy" ]
A028991
[ 1, 9, 75, 111, 261, 325, 559, 651, 969, 1089, 1491, 1639, 2125, 2301, 2871, 3075, 3729, 3961, 4699, 4959, 5781, 6069, 6975, 7291, 8281, 8625, 9699, 10071, 11229, 11629, 12871, 13299, 14625, 15081, 16491, 16975, 18469, 18981, 20559, 21099,...
[ "nonn", "easy" ]
A216097
[ 1, 3, 9, 27, 81, 243, 729, 2187, 6561, 9683, 9049, 7147, 1441, 4323, 2969, 8907, 6721, 163, 489, 1467, 4401, 3203, 9609, 8827, 6481, 9443, 8329, 4987, 4961, 4883, 4649, 3947, 1841, 5523, 6569, 9707, 9121, 7363, 2089, 6267, 8801, 6403,...
[ "nonn", "easy" ]
A342321
[ 1, 0, 1, 0, -1, 2, 0, 1, -4, 3, 0, -3, 22, -33, 12, 0, 1, -13, 33, -26, 5, 0, -5, 114, -453, 604, -285, 30, 0, 5, -200, 1191, -2416, 1985, -600, 35, 0, -35, 2470, -21465, 62476, -78095, 42930, -8645, 280, 0, 14, -1757, 2...
[ "sign", "tabl", "frac" ]
A069734
[ 1, 3, 3, 6, 4, 9, 5, 11, 8, 12, 7, 19, 8, 15, 14, 20, 10, 24, 11, 26, 18, 21, 13, 37, 17, 24, 22, 33, 16, 42, 17, 37, 26, 30, 26, 53, 20, 33, 30, 52, 22, 54, 23, 47, 42, 39, 25, 71, 30, 51, 38, 54, 28, 66, 38...
[ "easy", "nonn" ]
A183255
[ 2, 5, 39, 1899, 526941, 553836104, 2209503331909, 33131995796175560, 1.8555643628507494e+21, 3.865004675559381e+26 ]
[ "nonn" ]
A371562
[ 1, 2, -2, 30, -166, 1514, -12474, 114006, -1050830, 10005138, -96772786, 951500686, -9469982966, 95267209850, -966979784554, 9891522355270, -101866781649310, 1055294818173474, -10989809960251490, 114983445265899780, -1208092406024272600 ]
[ "sign" ]
A169260
[ 1, 7, 42, 252, 1512, 9072, 54432, 326592, 1959552, 11757312, 70543872, 423263232, 2539579392, 15237476352, 91424858112, 548549148672, 3291294892032, 19747769352192, 118486616113152, 710919696678912, 4265518180073472 ]
[ "nonn" ]
A316217
[ 64, 752, 2116, 25093, 242149, 1906841, 17524746, 162191532, 1448194529, 13126514111, 119451232239, 1082554697786, 9818802875496, 89141819392079, 808963524412425, 7341516688308799, 66636867454589760, 604841083740133100 ]
[ "nonn" ]
A309318
[ 1, 2, 24, 180, 2700, 74184, 2062800, 81067840, 3912595776 ]
[ "nonn", "more" ]
A365119
[ 1, 3, 6, 19, 69, 267, 1093, 4629, 20142, 89473, 404076, 1849746, 8563558, 40025574, 188612388, 895115942, 4274453904, 20523807009, 99025615998, 479874362583, 2334582421497, 11398055887003, 55828060595832, 274254002718255, 1350907899813921, 6670789629569022 ]
[ "nonn" ]
A311556
[ 1, 4, 8, 12, 18, 20, 22, 36, 30, 40, 44, 44, 50, 62, 54, 68, 68, 70, 76, 88, 80, 94, 92, 100, 100, 112, 108, 118, 118, 128, 122, 142, 132, 144, 146, 150, 150, 168, 154, 176, 168, 176, 178, 192, 182, 200, 192, 206, 200, ...
[ "nonn" ]
A372674
[ 1, 8, 23, 54, 89, 162, 221, 326, 439, 596, 707, 964, 1107, 1352, 1645, 1976, 2179, 2630, 2865, 3390, 3859, 4316, 4615, 5406, 5883, 6444, 7059, 7892, 8299, 9430, 9877, 10794, 11635, 12424, 13361, 14852, 15415, 16324, 17349, 18952, 19587,...
[ "nonn" ]
A217781
[ 1, 1, 1, 2, 1, 1, 4, 3, 1, 1, 9, 6, 3, 1, 1, 20, 16, 7, 4, 1, 1, 48, 37, 18, 9, 4, 1, 1, 115, 96, 44, 28, 10, 5, 1, 1, 286, 239, 117, 71, 32, 13, 5, 1, 1, 719, 622, 299, 202, 89, 45, 14, 6, 1, 1, 1842, 16...
[ "nonn", "tabl" ]
A153806
[ 0, 101, 609, 808, 906, 11011, 16091, 18081, 19061, 61019, 66099, 68089, 69069, 81018, 86098, 88088, 89068, 91016, 96096, 98086, 99066, 1110111, 1160911, 1180811, 1190611, 1610191, 1660991, 1680891, 1690691, 1810181, 1860981 ]
[ "base", "easy", "nonn" ]
A038356
[ 23, 33, 59, 69, 95, 105, 113, 119, 125, 137, 138, 139, 140, 142, 167, 177, 183, 189, 195, 198, 199, 200, 202, 207, 239, 249, 275, 285, 311, 321, 329, 335, 341, 353, 354, 355, 356, 358, 383, 393, 399, 405, 411, 414, 415, 416, ...
[ "nonn", "base", "easy" ]
A365966
[ 2, 7, 3, 11, 41, 3, 61, 7, 3, 11, 113, 3, 53, 7, 3, 11, 29, 3, 17, 7, 3, 11, 1.1111111111111111e+22, 3, 41, 7, 3, 11, 53, 3, 661, 7, 3, 11, 17, 3, 2028119, 7, 3, 11, 83, 3, 173, 7, 3, 11, 40697, 3, 239, 7, 3, 11, ...
[ "nonn" ]
A088575
[ 1, 1, 2, 4, 6, 9, 13, 18, 24, 31, 40, 50, 63, 77, 95, 114, 138, 163, 194, 226, 266, 307, 357, 408, 471, 535, 612, 690, 785, 881, 995, 1110, 1248, 1387, 1550, 1714, 1908, 2103, 2329, 2556, 2822, 3089, 3396, 3704, 4061, 4419, ...
[ "nonn" ]
A109253
[ 1, 1, 5, 35, 309, 3287, 41005, 588487, 9571125, 174230863, 3513016445, 77760961991, 1875249535941, 48946667107295, 1374949148971597, 41361812577803384, 1326708910645563600, 45201102932347560000, 1.6301933080273218e+21, 6.204717105504854e+22 ]
[ "nonn" ]
A127250
[ 1, 3, 5, 1, 3, 1, 1, 3, 5, 1, 1, 3, 1, 3, 5, 1, 3, 1, 1, 3, 1, 3, 5, 1, 1, 3, 5, 1, 3, 1, 1, 3, 5, 1, 1, 3, 1, 3, 5, 1, 1, 3, 5, 1, 3, 1, 1, 3, 1, 3, 5, 1, 3, 1, 1, 3, 5, 1, 1, 3, 1, 3, 5, 1...
[ "nonn", "base" ]
A386240
[ 4007, 6007, 9007, 10007, 10079, 12007, 13007, 16007, 20071, 24007, 30071, 36007, 45007, 50077, 60077, 61007, 64007, 70079, 78007, 80071, 80077, 82007, 88007, 90007, 90071, 90073, 94007, 97007, 100703, 100733, 100741, 100747, 100769, 100787, 100799,...
[ "nonn", "base", "dumb", "less" ]
A159432
[ 112, 381262, 3527172416, 35511908077121, 314770975060776800, 2.1714135623552944e+21, 1.0539948819901728e+25 ]
[ "nonn" ]
A156210
[ 3, 7, 11, 29, 41, 43, 47, 59, 67, 71, 101, 103, 127, 131, 139, 151, 163, 179, 191, 199, 223, 239, 251, 263, 281, 283, 307, 311, 331, 347, 359, 367, 401, 419, 431, 449, 461, 463, 479, 487, 491, 509, 521, 523, 547, 563, 569, ...
[ "nonn" ]
A140820
[ 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0...
[ "nonn", "tabl", "less", "changed" ]
A218397
[ 70007020020, 27272070272700, 2.07202722272277e+28, 2.2200020770272006e+37 ]
[ "base", "nonn", "more" ]
A253088
[ 1, 9, 12, 40, 24, 88, 48, 148, 80, 164, 172, 296, 236, 380, 324, 500, 436, 552, 552, 644, 688, 936, 788, 1168, 928, 1296, 1044, 1444, 1352, 1768, 1576, 2136, 1728, 2116, 1992, 2264, 2288, 2604, 2536, 3056, 2812, 3380, 3112, 3864, ...
[ "nonn", "look" ]
A216032
[ 2, 6, 8, 10, 12, 14, 18, 26, 28, 44, 48, 52, 54, 60, 66, 68, 70, 74, 76, 80, 82, 88, 90, 92, 94, 96, 104, 108, 110, 118, 122, 126, 130, 134, 136, 138, 142, 146, 150, 152, 162, 164, 170, 182, 188, 206, 210, 218, 220, 23...
[ "nonn" ]
A294164
[ 1060, 93188, 4823178, 204846125, 8022471066, 305667271592, 11651731789016, 451346936260628, 17927636436397970, 734017001257665000, 31071283511443878000, 1.3620009909867997e+21, 6.186921214839939e+22, 2.912865281703457e+24, 1.4211090610597696e+26 ]
[ "nonn" ]
A063951
[ 1, 3, 5, 7, 9, 13, 15, 17, 21, 25, 33, 41, 45, 49, 57, 65, 73, 81, 89, 97, 105, 129, 145, 153, 169, 177, 185, 201, 209, 217, 225, 257, 273, 297, 305, 313, 329, 345, 353, 385, 425, 433, 441, 481, 513, 561, 585, 609, 689, ...
[ "nonn", "easy", "nice", "fini", "full" ]
A275454
[ 1, 48, 15912, 7205484, 3731294385, 2082701917296, 1219626159039288, 738421413473848000, 458174434421099400000, 2.8968111249780734e+23, 1.858943632921705e+26, 1.2073896507715924e+29, 7.920619845924834e+31, 5.239774933589152e+34 ]
[ "nonn" ]
A298293
[ 64, 301, 115, 448, 1084, 1798, 4679, 10688, 22503, 53875, 123435, 278930, 642076, 1469878, 3378674, 7738804, 17769468, 40807932, 93610115, 214883906, 493564409, 1132812315, 2601500535, 5974070555, 13717158924, 31501633865, 72344724752 ]
[ "nonn" ]
A337474
[ 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 2, 1, 2, 2, 2, 0, 2, 1, 2, 2, 2, 2, 3, 1, 2, 2, 1, 2, 3, 2, 3, 0, 2, 2, 2, 1, 3, 3, 2, 2, 3, 2, 3, 2, 2, 3, 3, 1, 2, 2, 2, 2, 3, 1, 2, 2, 3, 3, 3, 2, 4, 3, 2, 0...
[ "nonn" ]
A203566
[ 126, 153, 1025, 1052, 1126, 1153, 1260, 1261, 1262, 1530, 1531, 1535, 2045, 2054, 2126, 2137, 2153, 2173, 2204, 2214, 2306, 2316, 2408, 2418, 2510, 2612, 2714, 2816, 2918, 3056, 3065, 3126, 3153, 3206, 3216, 3309, 3319, 3412, 3515, 3618, ...
[ "nonn", "base" ]
A072520
[ 7, 7, 8, 9, 10, 11, 31, 32, 76, 77, 78, 79, 525, 1416, 1417, 1863, 1864, 6004, 6005, 6006, 6007, 6008, 6009, 70009, 70010, 70011, 3853341, 8668488, 11420001, 13139697, 14515454, 15203333, 15547273, 15891213, 15891214, 15891215, 15891216, 6390...
[ "base", "nonn" ]
A198581
[ 1, 8, 5, 2, 0, 5, 7, 1, 8, 2, 2, 3, 6, 2, 6, 4, 6, 5, 3, 6, 0, 7, 1, 9, 5, 4, 0, 2, 2, 6, 4, 9, 4, 1, 4, 1, 5, 6, 9, 4, 5, 8, 0, 0, 1, 2, 4, 2, 6, 3, 5, 2, 6, 5, 8, 1, 3, 0, 1, 4, 7, 9, 7, 9...
[ "nonn", "cons" ]
A285737
[ 1, 1, 8, 35, 107, 421, 1312, 4474, 13622, 43977, 130473, 388025, 1146640, 3265446, 9352424, 26033637, 72144351, 196664848, 532768901, 1422725368, 3768251677, 9893857617, 25709347054, 66367179293, 169754459790, 431237516979, 1086813719408, 2722241654623 ]
[ "nonn" ]
A326756
[ 1, 1, 2, 6, 30, 150, 900, 7020, 58680, 528120, 5644080, 63510480, 769610160, 10483933680, 150733677600, 2272680828000, 37752297264000, 653710445308800, 11839468023187200, 231623795388268800, 4723930089495302000, 99779582243860370000, 2.2494316770714654e+21 ]
[ "nonn" ]
A210634
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 9, 20, 42, 78, 139, 231, 372, 573, 861, 1254, 1791, 2499, 3432, 4629, 6162, 8085, 10492, 13455, 17094, 21503, 26832, 33201, 40795, 49764, 60333, 72687, 87096, 103785, 123075, 145236, 170...
[ "nonn", "easy" ]
A156697
[ 1, 1, 1, 1, -2, 1, 1, 16, 16, 1, 1, -224, 1792, -224, 1, 1, 4480, 501760, 501760, 4480, 1, 1, -116480, 260915200, -3652812800, 260915200, -116480, 1, 1, 3727360, 217081446400, 60782804992000, 60782804992000, 217081446400, 3727360, 1 ]
[ "sign", "tabl" ]
A084725
[ 3, 13, 97, 1153, 18433, 331777, 6635521, 145981441, 3795517441, 136638627841, 5738822369281, 252508184248321, 25250818424832000, 3030098210979840000, 375732178161500160000, 6.086861286216303e+22 ]
[ "nonn" ]
A319271
[ 1, 1, 0, 1, 1, 3, 3, 9, 12, 27, 42, 91, 151, 312, 550, 1099, 2026, 3999, 7527, 14804, 28336, 55641, 107737, 211851, 413508, 814971, 1600512, 3162761, 6241234 ]
[ "nonn", "more" ]
A286355
[ 1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 19, 20, 21, 23, 24, 26, 27, 29, 30, 32, 33, 35, 36, 38, 39, 40, 42, 43, 45, 46, 48, 49, 51, 52, 54, 55, 57, 58, 59, 61, 62, 64, 65, 67, 68, 70, 71, 73, 74, 76, 77, 78, ...
[ "nonn", "easy" ]
A238671
[ 101, 191, 233, 311, 881, 1103, 1291, 1733, 1831, 1931, 2011, 2029, 2113, 2129, 2269, 2543, 2843, 3023, 3089, 3163, 3299, 3491, 3701, 3761, 3943, 4051, 4391, 4583, 4951, 5333, 5441, 5743, 5801, 6211, 6421, 6491, 7019, 7069, 7121, 7253, 7...
[ "nonn" ]
A092238
[ 1, 1, 1, 2, 64, 59712, 3580519776 ]
[ "more", "nonn" ]
A222864
[ 1, 1, 2, 1, 6, 6, 1, 50, 36, 24, 1, 510, 510, 240, 120, 1, 7682, 7380, 4800, 1800, 720, 1, 161406, 141246, 91560, 47040, 15120, 5040, 1, 4747010, 3444756, 2162664, 1134000, 493920, 141120, 40320, 1, 194342910, 110729310, 61286400, 32253...
[ "nonn", "tabl" ]
A274854
[ 4, 27, 43, 118, 330, 923, 2585, 7253, 20368, 57205, 160656, 451182, 1267101, 3558565, 9994005, 28067514, 78825751, 221376890, 621722366, 1746066251, 4903711869, 13771751157, 38677054168, 108621953977, 305057588980, 856734105714 ]
[ "nonn" ]
A285032
[ 1, 2, 5, 6, 7, 10, 12, 14, 15, 16, 19, 21, 22, 23, 25, 26, 29, 30, 31, 34, 35, 36, 39, 41, 43, 44, 45, 48, 50, 51, 52, 54, 55, 58, 60, 62, 63, 64, 66, 67, 70, 72, 74, 75, 76, 78, 79, 82, 83, 84, 87, 88, 89, 92,...
[ "nonn", "easy" ]
A260048
[ 25, 637, 722, 1135, 1243, 1519, 1639, 1734, 1863, 2167, 4735, 4855, 4939, 5311, 5746, 5886, 5967, 6381, 6589, 6713, 7003, 7339, 7407, 7774, 8154, 8503, 8667, 8703, 9457, 11123, 11221, 11711, 15471, 16735, 17779, 17965, 18079, 18283, 18477, ...
[ "base", "easy", "nonn" ]
A357251
[ 4, 19, 69, 188, 496, 1029, 2015, 3478, 5778, 9519, 14479, 21768, 31526, 43609, 59025, 79218, 105178, 135739, 173795, 219164, 271140, 333629, 406171, 491878, 594698, 711959, 842151, 988848, 1150168, 1330177, 1548617, 1791098, 2063454, 2359107, 26982...
[ "nonn" ]
A071187
[ 1, 2, 2, 3, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 7...
[ "nonn", "easy" ]
A015531
[ 0, 1, 4, 21, 104, 521, 2604, 13021, 65104, 325521, 1627604, 8138021, 40690104, 203450521, 1017252604, 5086263021, 25431315104, 127156575521, 635782877604, 3178914388021, 15894571940104, 79472859700521, 397364298502604, 1986821492513021, 9934107462565104 ]
[ "nonn", "easy" ]
A045154
[ 683, 686, 698, 746, 938, 1707, 1710, 1722, 1770, 1962, 2219, 2222, 2234, 2282, 2475, 2478, 2490, 2538, 2603, 2606, 2618, 2667, 2670, 2682, 2699, 2702, 2715, 2718, 2723, 2727, 2732, 2733, 2738, 2742, 2744, 2745, 2762 ]
[ "nonn", "base" ]
A115627
[ 1, 1, 1, 3, 1, 3, 1, 1, 4, 2, 1, 4, 2, 1, 1, 7, 2, 1, 1, 7, 4, 1, 1, 8, 4, 2, 1, 8, 4, 2, 1, 1, 10, 5, 2, 1, 1, 10, 5, 2, 1, 1, 1, 11, 5, 2, 2, 1, 1, 11, 6, 3, 2, 1, 1, 15, 6, 3, 2, 1, 1, 15, ...
[ "nonn", "tabf" ]
A215939
[ 2, 5, 11, 29, 41, 89, 131, 179, 331, 359, 401, 421, 431, 449, 509, 569, 571, 601, 631, 659, 691, 911 ]
[ "nonn", "more" ]
A386206
[ 0, 1, 0, 4, 3, 2, 9, 8, 7, 6, 16, 15, 14, 13, 12, 25, 24, 23, 22, 21, 20, 36, 35, 34, 33, 32, 31, 30, 49, 48, 47, 46, 45, 44, 43, 42, 64, 63, 62, 61, 60, 59, 58, 57, 56, 81, 80, 79, 78, 77, 76, 75, 74, 73, 72...
[ "nonn", "easy", "tabl" ]
A355942
[ 1, 2, 5, 6, 10, 14, 24, 29, 30, 38, 55, 58, 70, 86, 102, 110, 113, 120, 145, 168, 174, 190, 220, 226, 261, 290, 312, 330, 362, 370, 406, 430, 438, 456, 510, 522, 565, 574, 660, 678, 696, 758, 770, 790, 840, 870, 1032, 1055...
[ "nonn" ]
A278915
[ 1, 1, 1, 1111, 100, 110111, 0, 11111111, 10000, 1111010111, 10000, 111111110111, 1000000, 11111101011111, 1000000, 1111111111111111, 101010000, 111111110101010110, 101010000, 11111111111111010000, 10000010000, 1.111111111010111e+21, 10001000000, 1.1111111111111111e+23, ...
[ "nonn", "easy" ]
A120544
[ 2, 2, 8, 8, 24, 24, 64, 60, 156, 134, 360, 274, 800, 512, 1742, 866, 3736, 1226, 8018, 1092, 17236, -1304, 37564, -11178, 82990, -43222, 187006, -136760, 429010, -395302, 1002868, -1085836, 2381208, -2892438, 5732666, -7551904 ]
[ "sign" ]
A191324
[ 1, 2, 4, 5, 7, 8, 11, 13, 14, 17, 20, 22, 23, 26, 31, 34, 35, 40, 41, 44, 47, 52, 53, 61, 62, 67, 68, 71, 79, 80, 92, 94, 95, 101, 103, 104, 107, 119, 121, 122, 125, 134, 139, 142, 143, 152, 155, 157, 158, 161, 179, ...
[ "nonn" ]
A389308
[ 0, 0, 1, 0, 2, 5, 0, 4, 1, 6, 0, 7, 3, 1, 9, 2, 8, 0, 10, 19, 3, 14, 1, 13, 4, 17, 5, 20, 2, 16, 32, 0, 18, 7, 24, 3, 22, 12, 33, 6, 26, 0, 23, 4, 28, 8, 30, 1, 27, 5, 32, 7, 35, 0, 25, 2, 31, 14, 44,...
[ "nonn" ]
A175147
[ 0, 0, 1, 2, 3, 3, 5, 9, 11, 18, 32, 51, 84, 151, 254, 429, 754, 1311, 2377, 4199, 7584, 13785, 24955, 45840, 84002, 153515, 283659, 524648, 976217, 1817659, 3392835, 6348677, 11898310, 22349303, 42078071, 79318968, 149819857, 283425225, 537...
[ "nonn" ]
A171203
[ 1, 4, 38, 708, 24961, 1682688, 220959136, 57266675520, 29497077110720, 30294634141775360, 62134850895148480000, 2.5469131113537333e+23, 2.0871964249138456e+27, 3.4202892422993272e+31, 1.1208630252586562e+36, 7.34602424288553e+40 ]
[ "nonn" ]
A014051
[ 1, -1, 1, 0, 0, 0, 0, 1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 1, -1, 0, 0, 0, 0, -1, 1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -1, 1, 0, 0, 0, 0, 1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ...
[ "sign", "easy" ]
A192011
[ -1, 2, 0, 2, 0, 1, 2, 0, -1, 0, 2, 0, -3, 0, -1, 2, 0, -5, 0, 0, 0, 2, 0, -7, 0, 3, 0, 1, 2, 0, -9, 0, 8, 0, 1, 0, 2, 0, -11, 0, 15, 0, -2, 0, -1, 2, 0, -13, 0, 24, 0, -10, 0, -2, 0, 2, 0, -15, 0, 3...
[ "sign", "easy", "tabl" ]
A294684
[ 0, 1, 5, 2, 12, 62, 4, 38, 350, 4154, 6, 106, 2190, 52486, 1342206, 12, 360, 14622, 699598, 35792566, 1908897150, 18, 1180, 99878, 9587578, 981706830, 104715443850, 11488774559742, 34, 4148, 699250, 134223974, 27487816990, 5864063066498, 1286742755...
[ "nonn", "tabl", "nice" ]
A119427
[ 210, 321, 420, 432, 531, 543, 630, 642, 654, 741, 753, 765, 840, 852, 864, 876, 951, 963, 975, 987, 1050, 1062, 1074, 1086, 1098, 1161, 1173, 1185, 1197, 1260, 1272, 1284, 1296, 1371, 1383, 1395, 1470, 1482, 1494, 1581, 1593, 1680, ...
[ "base", "nonn" ]
A268606
[ 1, 5, 116, 15785, 11599297, 47212453928, 1100377983366327, 148568527921382100000 ]
[ "nonn", "hard", "more" ]
A099494
[ 1, 0, 1, 1, -1, 0, 0, -2, 0, 1, -1, 1, 2, -1, 0, 1, -2, -1, 1, -1, 0, 2, 0, 0, 1, -1, -1, 0, -1, 0, 1, 0, 1, 1, -1, 0, 0, -2, 0, 1, -1, 1, 2, -1, 0, 1, -2, -1, 1, -1, 0, 2, 0, 0, 1, -1, -1, 0, -1, 0...
[ "easy", "sign" ]
A151231
[ 1, 3, 13, 59, 277, 1319, 6361, 30919, 151161, 741995, 3653653, 18034963, 89197069, 441836367, 2191403681, 10880204831, 54066819569, 268870611475, 1337907024541, 6660994916011, 33178027851653, 165323123545783, 824073328495721, 4108927984722999, 20493008413831270, 102...
[ "nonn", "walk" ]