id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A044412
[ 80, 180, 280, 380, 480, 580, 680, 780, 800, 880, 980, 1080, 1180, 1280, 1380, 1480, 1580, 1680, 1780, 1800, 1880, 1980, 2080, 2180, 2280, 2380, 2480, 2580, 2680, 2780, 2800, 2880, 2980, 3080, 3180, 3280, 3380, 3480, 3580 ]
[ "nonn", "base" ]
A135319
[ 0, 3, 4, 6, 6, 7, 8, 9, 9, 0, 0, 0, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8...
[ "base", "easy", "nonn" ]
A330653
[ 29, 41, 47, 61, 83, 101, 263, 281, 401, 463, 601, 607, 661, 809, 821, 863, 1129, 1303, 2063, 2267, 3121, 3181, 3301, 3343, 4001, 4603, 5309, 5581, 6007, 6043, 6803, 6863, 7129, 7309, 8009, 8681, 8821, 9721, 9967, 10903, 10909, 14143, ...
[ "nonn", "base" ]
A039542
[ 70, 125, 214, 269, 358, 413, 502, 557, 646, 701, 730, 742, 754, 766, 778, 802, 814, 826, 838, 840, 841, 842, 843, 844, 846, 847, 848, 849, 851, 862, 934, 989, 1078, 1133, 1222, 1277, 1366, 1421, 1445, 1457, 1469, 1481, 1493, 1500,...
[ "nonn", "base", "easy" ]
A230163
[ 1, 0, 7, 5, 7, 6, 6, 0, 6, 6, 0, 8, 6, 8, 3, 7, 1, 5, 8, 0, 5, 9, 5, 9, 9, 5, 2, 4, 1, 6, 5, 2, 7, 5, 8, 2, 0, 6, 9, 2, 5, 3, 0, 2, 4, 7, 6, 3, 9, 2, 0, 3, 2, 7, 9, 4, 7, 7, 0, 6, 8, 3, 9, 4...
[ "nonn", "cons" ]
A176310
[ 1, 3, 12, 47, 157, 531, 1741, 5459, 16814, 51286, 152506, 447622, 1300571, 3721897, 10551143, 29663448, 82494469, 227701487, 624113377, 1697228926, 4586879327, 12323255188, 32904418872, 87395198231, 230972180615, 607363842960 ]
[ "nonn" ]
A211137
[ 3, 5, 7, 9, 15, 21, 23, 45, 69, 105, 115 ]
[ "nonn", "fini", "full" ]
A254073
[ 1, 4, 9, 16, 25, 36, 90, 64, 162, 100, 121, 144, 252, 360, 225, 256, 289, 648, 468, 400, 810, 484, 529, 576, 625, 1008, 1458, 1440, 841, 900, 1143, 1024, 1089, 1156, 2250, 2592, 1602, 1872, 2268, 1600, 1681, 3240, 2115, 1936, 40...
[ "nonn", "mult" ]
A038424
[ 1, 4, 11, 19, 34, 53, 81, 115, 140, 173, 219, 282, 333, 372, 426, 516, 586, 652, 727, 824, 899, 995, 1101, 1210, 1290, 1424, 1534, 1659, 1774, 1892, 2052, 2209, 2313, 2469, 2619, 2793, 2964, 3121, 3250, 3478, 3629, 3830, 4030, 420...
[ "nonn" ]
A109443
[ 1, 3, 6, 10, 15, 20, 27, 35, 44, 53, 64, 75, 88, 101, 114, 130, 147, 164, 183, 202, 221, 240, 263, 286, 311, 336, 363, 390, 419, 448, 479, 511, 543, 575, 607, 639, 676, 713, 750, 787, 828, 869, 912, 955, 998 ]
[ "easy", "nonn" ]
A053452
[ 1, 1, 1, 2, 3, 1, 2, 5, 3, 3, 2, 8, 9, 2, 5, 11, 10, 3, 3, 14, 15, 4, 8, 6, 9, 9, 2, 4, 21, 5, 11, 23, 21, 10, 3, 26, 10, 3, 14, 29, 5, 15, 8, 6, 11, 8, 6, 35, 6, 9, 9, 15, 39, 2, 4, 41, 8, 21, 5, 4...
[ "nonn" ]
A312691
[ 1, 4, 8, 14, 21, 25, 29, 35, 38, 42, 50, 57, 58, 62, 71, 71, 75, 86, 93, 91, 95, 107, 104, 108, 122, 129, 124, 128, 143, 137, 141, 158, 165, 157, 161, 179, 170, 174, 194, 201, 190, 194, 215, 203, 207, 230, 237, 223, 227,...
[ "nonn" ]
A313123
[ 1, 4, 9, 14, 19, 25, 29, 34, 39, 44, 48, 53, 59, 62, 70, 72, 78, 82, 88, 91, 99, 100, 109, 110, 119, 119, 128, 129, 138, 139, 149, 147, 159, 157, 168, 167, 178, 176, 189, 186, 198, 195, 208, 204, 219, 214, 228, 224, 238,...
[ "nonn" ]
A137961
[ 1, 1, 5, 20, 105, 575, 3306, 19760, 121035, 757230, 4815530, 31039402, 202335855, 1331569725, 8834918160, 59035907480, 396937508816, 2683518356850, 18230570856710, 124390574548960, 852074529347120, 5857453791938135 ]
[ "nonn" ]
A080014
[ 1, 1, 1, 3, 6, 10, 18, 35, 65, 119, 221, 412, 764, 1416, 2629, 4881, 9057, 16807, 31194, 57894, 107442, 199399, 370065, 686799, 1274617, 2365544, 4390184, 8147680, 15121161, 28063153, 52082017, 96658283, 179386750, 332921362, 617864098 ]
[ "nonn", "easy" ]
A011824
[ 2, 10, 512, 115975, 26780972, 3851458088, 329518779600, 17824974050808, 655264935972190, 17429225215357484, 352948154052188500, 5667546539054689000, 74561538032148510000, 825178947144750200000 ]
[ "nonn" ]
A310870
[ 1, 4, 7, 14, 16, 24, 23, 32, 30, 38, 39, 48, 50, 58, 59, 66, 64, 72, 71, 80, 82, 92, 93, 100, 100, 106, 105, 114, 114, 124, 125, 134, 134, 140, 141, 148, 148, 158, 157, 166, 166, 174, 175, 182, 184, 192, 191, 200, 198, ...
[ "nonn" ]
A134607
[ 48, 320, 486, 3072, 3150, 6174, 7128, 7650, 10890, 11466, 15000, 18018, 18810, 25578, 27846, 29400, 30240, 39546, 40590, 45056, 45927, 53010, 54600, 55062, 59202, 73440, 75582, 77418, 80910, 85800, 90552, 92106, 95238, 96642, 98838 ]
[ "nonn" ]
A076272
[ 1, 2, 2, 3, 3, 3, 5, 5, 5, 5, 7, 7, 7, 7, 7, 7, 11, 11, 11, 11, 11, 11, 13, 13, 13, 13, 13, 13, 17, 17, 17, 17, 17, 17, 19, 19, 19, 19, 19, 19, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 29, 29, 29, 29, 29, 29...
[ "nonn" ]
A009550
[ 1, 11, 55, 165, 330, 463, 12, 528, 220, 1, 838, 78, 793, 286, 14, 1896, 15, 364, 1288, 105, 1809, 1, 455, 1836, 17, 2003, 1365, 560, 136, 18, 1, 10945, 1, 20, 171, 816, 2380, 4369, 21, 5195, 969, 1, 6514, 210, 6189, 1140, 23...
[ "nonn" ]
A192981
[ 1, 0, 2, 5, 12, 24, 45, 80, 138, 233, 388, 640, 1049, 1712, 2786, 4525, 7340, 11896, 19269, 31200, 50506, 81745, 132292, 214080, 346417, 560544, 907010, 1467605, 2374668, 3842328, 6217053, 10059440, 16276554, 26336057, 42612676, 68948800 ]
[ "nonn", "easy" ]
A351051
[ 3, 11, 17, 7, 25781659, 13505561767 ]
[ "nonn", "more" ]
A269811
[ 1, 4, 32, 164, 732, 3084, 12692, 51604, 208492, 839324, 3371652, 13526244, 54217052, 217190764, 869703412, 3481580084 ]
[ "nonn", "more" ]
A040580
[ 24, 1, 1, 2, 11, 1, 8, 1, 11, 2, 1, 1, 48, 1, 1, 2, 11, 1, 8, 1, 11, 2, 1, 1, 48, 1, 1, 2, 11, 1, 8, 1, 11, 2, 1, 1, 48, 1, 1, 2, 11, 1, 8, 1, 11, 2, 1, 1, 48, 1, 1, 2, 11, 1, 8, 1, 11, 2, 1, 1, 4...
[ "nonn", "cofr", "easy", "less" ]
A127559
[ 7, 3, 4, 0, 0, 0, 3, 5, 3, 9, 8, 2, 2, 7, 9, 8, 5, 0, 2, 9, 7, 3, 9, 1, 8, 4, 6, 1, 5, 9, 2, 7, 6, 9, 4, 9, 1, 1, 2, 4, 7, 3, 4, 1, 2, 2, 3, 9, 9, 1, 6, 1, 1, 5, 8, 1, 5, 8, 2, 6, 1, 8, 9, 2...
[ "cons", "nonn" ]
A334268
[ 1, 1, 2, 4, 5, 10, 10, 24, 24, 43, 42, 88, 72, 136, 122, 242, 213, 392, 320, 630, 490, 916, 742, 1432, 1160, 1955, 1604, 2826, 2310, 3850, 2888, 5416, 4426, 7332, 5814, 10046, 7983, 12946, 10236, 17780, 14100, 22674, 17582, 30232,...
[ "nonn" ]
A211145
[ 1, 19, 60, 116, 196, 292, 404, 548, 708, 868, 1060, 1284, 1524, 1796, 2052, 2292, 2612, 2980, 3348, 3748, 4116, 4452, 4884, 5380, 5844, 6324, 6820, 7300, 7860, 8468, 9060, 9732, 10388, 10964, 11572, 12180, 12852, 13668, 14436, 15092 ]
[ "nonn" ]
A156769
[ 1, 3, 15, 315, 2835, 155925, 6081075, 638512875, 10854718875, 1856156927625, 194896477400625, 49308808782358130, 3698160658676859400, 1.2980543911955776e+21, 2.6350504141270226e+23, 1.2252984425690655e+26, 4.043484860477916e+27 ]
[ "easy", "nonn" ]
A351175
[ 1, 6, 15, 18, 19, 20, 24, 28, 51, 59, 61, 63, 66, 67, 68, 71, 72, 74, 75, 78, 82, 83, 84, 87, 94, 96, 120, 191, 195, 203, 211, 231, 235, 243, 247, 251, 253, 255, 258, 260, 262, 263, 264, 265, 266, 267, 271, 272, 274, 2...
[ "nonn", "base" ]
A260547
[ 1, 3, 8, 19, 41, 83, 160, 296, 530, 923, 1569, 2611, 4264, 6848, 10833, 16904, 26049, 39683, 59817, 89286, 132064, 193683, 281800, 406955, 583577, 831323, 1176841, 1656096, 2317416, 3225472, 4466466, 6154859, 8442088, 11527811, 15674377, 21225403...
[ "nonn" ]
A000746
[ 1, 4, 13, 39, 120, 407, 1578, 7042, 35840, 205253, 1306454, 9148392, 69887664, 578392583, 5155022894, 49226836114, 501420422112, 5426640606697, 62184720675718, 752172431553308, 9576956842743904, 128034481788227200 ]
[ "nonn", "changed" ]
A201989
[ 1, 4, 4, 8, 77, 8, 18, 1170, 1170, 18, 32, 14107, 134217, 14107, 32, 58, 139471, 11648559, 11648559, 139471, 58, 94, 1177568, 803133854, 7375608084, 803133854, 1177568, 94, 151, 8721417, 46034224561, 3674187761233, 3674187761233 ]
[ "nonn", "tabl" ]
A369600
[ 1, 3, 12, 56, 291, 1638, 9780, 60948, 391821, 2577575, 17256918, 117150228, 804343302, 5575177026, 38957753136, 274143594685, 1941037464402, 13818185220783, 98848503602394, 710185896393792, 5122358166219855, 37076879861508830, 269235792063692580 ]
[ "nonn" ]
A282255
[ 1, 3, 3, 8, 1, 5, 7, 16, 9, 7, 3, 16, 7, 1, 8, 9, 5, 27, 5, 6, 10, 8, 7, 14, 23, 15, 27, 11, 9, 16, 11, 36, 2, 19, 7, 81, 37, 16, 21, 18, 3, 20, 43, 16, 45, 5, 15, 27, 25, 30, 4, 45, 32, 2, 11, 31, 22, ...
[ "nonn" ]
A204095
[ 0, 8, 80, 88, 800, 808, 880, 888, 8000, 8008, 8080, 8088, 8800, 8808, 8880, 8888, 80000, 80008, 80080, 80088, 80800, 80808, 80880, 80888, 88000, 88008, 88080, 88088, 88800, 88808, 88880, 88888, 800000, 800008, 800080, 800088, 800800, 800808, ...
[ "nonn", "base" ]
A202477
[ 1, 1, 5, 40, 437, 6036, 100657, 1965160, 43937385, 1106488720, 30982333661, 954607270464, 32090625710365, 1168646120904640, 45826588690845704, 1924996299465967000, 86231288506425800000, 4.103067277186778e+21, 2.066553071758477e+23 ]
[ "nonn" ]
A087121
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 59, 59, 59, 59, 59, 5...
[ "nonn", "easy" ]
A385861
[ 1, 2, 14, 368, 49578, 24177516, 46985524156 ]
[ "nonn", "more" ]
A221313
[ 1, 4, 9, 23, 57, 142, 353, 878, 2183, 5428, 13496, 33556, 83432, 207441, 515770, 1282382, 3188443 ]
[ "nonn" ]
A043018
[ 4, 32, 200, 207, 214, 221, 228, 235, 242, 1376, 1432, 1488, 1544, 1600, 1656, 1712, 9608, 9657, 9706, 9755, 9804, 9853, 9902, 9958, 10007, 10056, 10105, 10154, 10203, 10252, 10308, 10357, 10406, 10455, 10504, 10553, 10602 ]
[ "nonn", "base" ]
A266875
[ 0, 1, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 4, 3, 1, 9, 1 ]
[ "nonn", "more" ]
A116288
[ 7, 97, 451, 546, 689, 854, 997, 4380, 5617, 9997, 72728, 99997, 346531, 653466, 999997, 9090906, 9999997, 94117644, 99999997, 334665331, 336032385, 378253326, 390977440, 439928489, 483516484, 516483513, 560071508 ]
[ "nonn", "base" ]
A116033
[ 1, 5, 10, 11, 14, 15, 20, 23, 24, 28, 29, 34, 35, 38, 39, 40, 42, 44, 46, 48, 52, 56, 57, 59, 60, 62, 65, 66, 68, 69, 74, 75, 76, 82, 85, 87, 92, 95, 97, 102, 106, 109, 114, 118, 119, 120, 122, 124, 126, 133, 136, ...
[ "nonn" ]
A169706
[ 4, 3, 13, 3, 13, 15, 33, -1, 13, 27, 5, 31, 57, 43, 49, 31, -43, 99, -79, 51, 93, 19, 57, 47, -27, 159, -11, 103, 189, 115, 133, 11, -151, 227, -123, 111, 33, 99, -51, 67, 77, 83, 13, 135, 129, 147, 157, -49, -123, 355...
[ "sign" ]
A069293
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5...
[ "nonn" ]
A254439
[ 1, 1, 2, 7, 47, 682, 23132, 1913821, 397731998, 212521309666, 297464368728296 ]
[ "nonn", "more" ]
A276193
[ -1, -2, 0, 1, 0, -4, 6, 2, 0, -6, -4, 2, 6, 8, -12, 6, -6, 8, -4, 0, 2, 8, -6, -6, -10, 0, -4, 12, 2, 6, -16, 18, 18, 14, -18, 8, -4, -16, -12, -12, -12, 20, 24, 14, -18, 20, -4, 8, 18, -4, -6, 24, -10, -18, ...
[ "sign" ]
A034642
[ 1, 0, 0, 0, 0, 0, 138458880, 15482327040, 973804265280, 37527682805760, 983531592449280, 18878469131612160, 280164494820672000, 3349945087383122000, 33324456406105625000, 282893511597411800000, 2.0917674399823587e+21 ]
[ "nonn" ]
A265101
[ 1, 30, 1144, 49742, 2340135, 115997970, 5967382200, 315614844558, 17055399281284, 937581428480312, 52267355178398300, 2947837630317717500, 167897169647656370000, 9.643503773422182e+21, 5.579392448280838e+23, 3.2486374828326107e+25 ]
[ "nonn", "easy" ]
A337832
[ 11, 37, 74, 101, 121 ]
[ "nonn", "base", "more" ]
A360747
[ 1, 1, 1, 1, 2, 17, 82, 257, 690, 3484, 26978, 160347, 726085, 3529206, 26885924, 220706533, 1474182023, 8834370165, 65392181686, 604821608674, 5230627589958, 39543579302104, 312733691925723, 3013530105191283, 30474809255061290 ]
[ "nonn" ]
A165451
[ 2, 10, 11, 12, 13, 20, 21, 30, 31, 100, 101, 110, 111, 122, 133, 134, 135, 136, 143, 153, 155, 163, 178, 187, 202, 212, 220, 221, 303, 304, 305, 306, 313, 314, 315, 316, 330, 331, 340, 341, 350, 351, 360, 361, 403, 413, 430,...
[ "easy", "nonn", "base" ]
A000942
[ 1, 1, 1, 3, 4, 12, 26, 77, 204, 624, 1817, 5585, 17007, 52803, 164001, 514009, 1615044, 5100324, 16152134, 51324864 ]
[ "nonn", "more" ]
A334235
[ 0, 0, 0, 0, 1, 1, 2, 2, 2, 2, 1, 1, 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 0, 0, 0, 0, 1, 1, 2, 2, 2, 2, 1, 1, 0, 0, 0, 0...
[ "nonn" ]
A242174
[ 2, 3, 41, 5, 7, 349, 61, 75617, 31, 13, 499, 643897693, 17, 19, 1729774061, 101, 2859112064587, 138407, 83, 167, 59, 29, 653, 257, 997540809461453600000, 347, 13679, 37, 1.604491797277177e+26, 211, 151, 43, 97, 73, 47 ]
[ "nonn" ]
A356180
[ 1, 3, 6, 8, 12, 13, 15, 19, 20, 24, 25, 27, 31, 32, 36, 38, 41, 43, 45, 48, 50, 53, 55, 57, 60, 62, 65, 67, 71, 72, 74, 77, 79, 83, 84, 86, 90, 91, 95, 96, 98, 102, 103, 107, 109, 112, 114, 116, 119, 121, 124, 126,...
[ "nonn", "easy" ]
A254752
[ 44, 46, 48, 49, 64, 66, 68, 69, 84, 86, 88, 94, 96, 98, 99, 404, 406, 408, 424, 426, 428, 444, 446, 448, 454, 456, 458, 464, 466, 468, 469, 484, 486, 488, 494, 496, 498, 604, 606, 608, 609, 624, 626, 628, 634, 636, 638, 63...
[ "nonn", "base" ]
A328109
[ 0, 1, 4, 3, 5, 6, 8, 10, 9, 11, 11, 14, 14, 13, 16, 11, 18, 16, 17, 25, 18, 21, 25, 24, 22, 30, 25, 28, 30, 26, 33, 34, 36, 34, 33, 37, 37, 44, 38, 44, 51, 38, 43, 48, 45, 57, 38, 47, 50, 52, 49, 61, 53, 56, ...
[ "nonn" ]
A345351
[ 496, 946, 1378, 2485, 7381, 7750, 8128, 10011, 11935, 12880, 13366, 13861, 14365, 15931, 19900, 31375, 33670, 34453, 35245, 36046, 38503, 41905, 43660, 44551, 45451, 46360, 48205, 49141, 50086, 58996, 65341, 66430, 73153, 103285, 104653, 111628, ...
[ "nonn", "base", "less" ]
A135087
[ 1, 3, 3, 3, 7, 3, 3, 11, 11, 3, 3, 15, 23, 15, 3, 3, 19, 39, 39, 19, 3, 3, 23, 59, 79, 59, 23, 3, 3, 27, 83, 139, 139, 83, 27, 3, 3, 31, 111, 223, 279, 223, 111, 31, 3, 3, 35, 143, 335, 503, 503, 335, 143, 35, ...
[ "nonn", "tabl" ]
A039795
[ 1, 2, 1, 6, 11, 10, 43, 74, 109, 207, 562, 770, 1647, 3546, 5654, 5475, 19513, 23236, 54896 ]
[ "nonn" ]
A158524
[ 1, 1, 1, 2, 2, 2, 6, 3, 3, 6, 18, 4, 4, 8, 18, 52, 5, 5, 10, 24, 52, 148, 6, 6, 12, 30, 70, 148, 420, 7, 7, 14, 36, 88, 200, 420, 1192, 8, 8, 16, 42, 106, 252, 568, 1192, 3384, 9, 9, 18, 48, 124, 304, 716, 1612...
[ "nonn", "tabl" ]
A067663
[ 2, 3, 5, 11, 7, 19, 11, 13, 17, 19, 43, 23, 401, 29, 31, 67, 37, 41, 43, 47, 53, 59, 61, 131, 67, 71, 73, 79, 163, 83, 89, 179, 97, 101, 103, 107, 109, 113, 227, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 347, ...
[ "nonn" ]
A011889
[ 0, 0, 0, 0, 3, 8, 17, 30, 48, 72, 102, 141, 188, 245, 312, 390, 480, 582, 699, 830, 977, 1140, 1320, 1518, 1734, 1971, 2228, 2507, 2808, 3132, 3480, 3852, 4251, 4676, 5129, 5610, 6120, 6660, 7230, 7833, 8468, 9137, 9840, 10578, ...
[ "nonn", "easy" ]
A254760
[ 5, 7, 9, 11, 13, 11, 13, 15, 19, 21, 17, 17, 21, 25, 19, 23, 21, 21, 29, 23, 23, 31, 33, 25, 27, 25, 29, 31, 31, 29, 29, 37, 41, 31, 35, 31, 37, 39, 41, 43, 35, 39, 35, 35, 43, 35, 49, 41, 37 ]
[ "nonn", "easy" ]
A297942
[ 1, 130, 102, 694, 3640, 16198, 76374, 376126, 1869918, 9484034, 48011978, 243246513, 1231030126, 6237187781, 31603163041, 160226927991, 812477894549, 4120721248833, 20900009783256, 106009403420658, 537712102244846 ]
[ "nonn" ]
A119847
[ 6, 10, 14, 15, 21, 22, 24, 26, 30, 33, 34, 35, 38, 39, 40, 42, 46, 51, 54, 55, 56, 57, 58, 60, 62, 65, 66, 69, 70, 74, 77, 78, 82, 84, 85, 86, 87, 88, 90, 91, 93, 94, 95, 96, 102, 104, 105, 106, 110, 111, 114, 115,...
[ "nonn" ]
A277216
[ 1, 3, 4, 7, 6, 2, 8, 5, 3, 8, 2, 16, 4, 8, 8, 3, 8, 27, 0, 8, 6, 18, 8, 0, 3, 8, 0, 30, 0, 14, 6, 18, 32, 20, 32, 9, 24, 0, 30, 0, 8, 54, 16, 32, 56, 14, 32, 8, 35, 27, 14, 72, 20, 0, 14, 0, 0, 0, 0, ...
[ "nonn", "base" ]
A139823
[ 1, 4, 3, 0, 6, 3, 4, 5, 2, 4, 3, 6, 1, 1, 6, 8, 6, 5, 7, 0, 6, 6, 1, 8, 0, 3, 3, 7, 5, 5, 9, 0, 2, 9, 5, 5, 4, 7, 0, 6, 8, 7, 3, 0, 9, 8, 5, 0, 5, 3, 9, 8, 7, 9, 1, 7, 6, 0, 7, 5, 5, 4, 5, 8...
[ "cons", "nonn" ]
A304808
[ 1, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 52, 53, 54, 55, 56, 58, 59, 60, 61, 63, 64, 65, ...
[ "nonn", "easy" ]
A239320
[ 1, 3, 9, 13, 17, 23, 25, 27, 31, 35, 37, 39, 47, 51, 53, 59, 61, 65, 69, 71, 73, 75, 77, 79, 81, 85, 89, 91, 93, 101, 105, 107, 109, 111, 117, 137, 141, 143, 153, 155, 159, 161, 167, 169, 173, 177, 179, 181, 183, 185, ...
[ "nonn", "base", "easy" ]
A120771
[ 1, 0, 0, 1, 1, 1, 3, 2, 1, 6, 5, 3, 14, 11, 6, 31, 25, 14, 70, 56, 31, 157, 126, 70, 353, 283, 157, 793, 636, 353, 1782, 1429, 793, 4004, 3211, 1782, 8997, 7215, 4004, 20216, 16212, 8997, 45425, 36428, 20216, 102069, 81853, ...
[ "nonn", "easy" ]
A136768
[ 7, 15, 23, 31, 39, 47, 55, 56, 64, 72, 80, 88, 96, 104, 112, 113, 121, 129, 137, 145, 153, 161, 169, 170, 178, 186, 194, 202, 210, 218, 226, 227, 235, 243, 251, 259, 267, 275, 283, 284, 292, 300, 308, 316, 324, 332, 340, 3...
[ "base", "nonn" ]
A198417
[ 7, 9, 5, 5, 8, 9, 8, 7, 3, 4, 7, 3, 9, 2, 5, 1, 8, 1, 8, 0, 6, 2, 7, 3, 2, 5, 9, 0, 1, 3, 0, 3, 5, 9, 6, 1, 1, 2, 8, 1, 7, 1, 0, 6, 4, 5, 4, 6, 1, 3, 4, 7, 0, 5, 2, 9, 8, 3, 1, 3, 2, 8, 0, 2...
[ "nonn", "cons" ]
A363991
[ 1, 1, 82, 1, 15626, 82, 5764802, 1, 3486784483, 15626, 3138428376722, 82, 3937376385699290, 5764802, 6568408355712906000, 1, 1.4063084452067724e+22, 3486784483, 3.758997345754596e+25, 15626, 1.2269432738610563e+29, 3138428376722 ]
[ "nonn", "easy" ]
A081060
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 5, 2, 1, 1, 1, 1, 3, 4, 9, 1, 1, 1, 11, 1, 5, 1, 6, 1, 1, 8, 15, 2, 1, 1, 17, 10, 3, 1, 20, 1, 9, 2, 21, 1, 1, 1, 3, 14, 11, 1, 1, 6, 5, 16, 27, 1, 6, 1, 2...
[ "nonn" ]
A349971
[ 1, 1, 0, 1, 1, 0, 1, 2, 3, 0, 1, 3, 10, 15, 0, 1, 4, 21, 80, 105, 0, 1, 5, 36, 231, 880, 945, 0, 1, 6, 55, 504, 3465, 12320, 10395, 0, 1, 7, 78, 935, 9576, 65835, 209440, 135135, 0, 1, 8, 105, 1560, 21505, 229824, ...
[ "nonn", "tabl" ]
A153978
[ 0, 2, 14, 50, 130, 280, 532, 924, 1500, 2310, 3410, 4862, 6734, 9100, 12040, 15640, 19992, 25194, 31350, 38570, 46970, 56672, 67804, 80500, 94900, 111150, 129402, 149814, 172550, 197780, 225680, 256432, 290224, 327250, 367710, 411810, 459762 ]
[ "nonn", "easy" ]
A093662
[ 1, 1, 1, 1, 0, 1, 1, 1, 2, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 2, 1, 1, 0, 1, 0, 2, 0, 1, 1, 1, 2, 1, 5, 2, 4, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 2, 1, 1, 0, 1, 0, 0, 0, 0, 0, 2...
[ "nonn", "tabl" ]
A098252
[ 1, 364, 132131, 47963189, 17410505476, 6319965524599, 2294130074923961, 832762897231873300, 302290637565095050000, 1.0973066867323228e+23, 3.983193043774575e+25, 1.4458881018233034e+28 ]
[ "nonn", "easy" ]
A136292
[ 5, 11, 17, 31, 37, 43, 83, 89, 109, 263, 269, 521, 541, 547, 593, 773, 1051, 3181, 3187, 3413, 3691, 6763, 9377, 9403, 9887, 12527, 46663, 46993, 49787, 50549, 52937, 53189, 93851, 96697, 99563, 139999, 823547, 823553, 823573, 823651, 8...
[ "easy", "nonn" ]
A275243
[ 13, 21, 44, 56, 100, 108, 270, 450, 560, 576, 600, 1584, 1848, 2100, 3240, 4320, 9072, 9900, 11088, 14040, 16800, 28080, 39600, 40320, 80640, 92400, 141120, 143640, 171360, 287280, 383040, 453600, 471240, 900900, 1028160, 1053360, 1670760, 19...
[ "nonn" ]
A162327
[ 1, 16, 135, 800, 3739, 14672, 50252, 154224, 432174, 1121456, 2724183, 6248128, 13624922, 28409312, 56910017, 109964720, 205651974, 373334384, 659553420, 1136449488, 1913563930, 3154094352, 5096922202, 8086011920, 12609093085, 19347878144, 29242434212, 435727119...
[ "nonn", "fini", "full" ]
A371822
[ 1, 1, 2, 3, 1, 2, 3, 1, 4, 2, 2, 5, 3, 1, 4, 2, 5, 3, 6, 1, 4, 3, 6, 1, 4, 7, 2, 5, 2, 5, 8, 3, 6, 1, 4, 7, 6, 1, 9, 4, 7, 2, 5, 8, 3, 7, 2, 10, 5, 8, 3, 6, 1, 9, 4, 7, 2, 10, 5, 8, 3, 11, 6, ...
[ "nonn", "tabl" ]
A078367
[ 2, 17, 287, 4862, 82367, 1395377, 23639042, 400468337, 6784322687, 114933017342, 1947076972127, 32985375508817, 558804306677762, 9466687838013136, 160374888939545570, 2716906424134261000, 46027034321342900000, 779742677038695000000, 1.3209598475336472e+22 ]
[ "nonn", "easy" ]
A326122
[ 10, 30, 40, 70, 60, 120, 80, 150, 130, 180, 120, 280, 140, 240, 240, 310, 180, 390, 200, 420, 320, 360, 240, 600, 310, 420, 400, 560, 300, 720, 320, 630, 480, 540, 480, 910, 380, 600, 560, 900, 420, 960, 440, 840, 780, 720, ...
[ "nonn", "easy" ]
A042370
[ 26, 27, 80, 507, 1094, 1601, 84346, 85947, 256240, 1623387, 3503014, 5126401, 270075866, 275202267, 820480400, 5198084667, 11216649734, 16414734401, 864782838586, 881197572987, 2627177984560, 16644265480347 ]
[ "nonn", "cofr", "frac", "easy" ]
A186831
[ 512, 19904, 1537476, 209888936, 21242244160, 3176962520030 ]
[ "nonn" ]
A093652
[ 1, 2, 7, 15, 45, 86, 239, 433, 1157, 2034, 5307, 9151, 23497, 39974, 101467, 170913, 430089, 718946, 1796975, 2985775, 7422437, 12272502, 30373191, 50016721, 123327373, 202395986, 497484067, 814061151, 1995542913, 3257222726, 7965875891, 12973832257, 3...
[ "nonn", "easy" ]
A259759
[ 1, 2, 0, 4, 0, 2, 8, 0, 12, 3, 16, 0, 48, 24, 16, 32, 0, 160, 120, 160, 65, 64, 0, 480, 480, 960, 780, 336, 128, 0, 1344, 1680, 4480, 5460, 4704, 1897, 256, 0, 3584, 5376, 17920, 29120, 37632, 30352, 11824, 512, 0, 9216, ...
[ "nonn", "tabl" ]
A310744
[ 1, 4, 7, 11, 16, 18, 23, 27, 29, 34, 39, 40, 46, 50, 51, 57, 62, 62, 69, 73, 73, 80, 85, 84, 92, 96, 95, 103, 108, 106, 115, 119, 117, 126, 131, 128, 138, 142, 139, 149, 154, 150, 161, 165, 161, 172, 177, 172, 184, 188...
[ "nonn" ]
A307262
[ 1, 1, 3, 10, 29, 82, 231, 646, 1780, 4835, 13009, 34794, 92600, 245119, 644983, 1686869, 4387030, 11353686, 29261059, 75134965, 192261744, 490305251, 1246128051, 3156425284, 7969135647, 20057905672, 50339682075, 126002008265, 314604617989, 783668652379, 19...
[ "nonn" ]
A297719
[ 37, 2651, 68919, 2699832, 107787351, 4021047904, 154327332017, 5920531350715, 226188909640209, 8657932603026022, 331360189636829200, 12678860316903190000, 485194134262201700000, 1.856711299525026e+22 ]
[ "nonn" ]
A183743
[ 10231, 1389521, 263234281, 55212617129, 12024860660055, 2669694620697299, 600788747889666000, 136582348832416600000, 3.1294543292138684e+22, 7.214884502508988e+24, 1.6717255175318387e+27 ]
[ "nonn" ]
A181903
[ 2, 212, 359, 377, 593, 649, 667, 813, 865, 1003, 1175, 1397, 1521, 1581, 1957, 2263, 2409, 2472, 2878, 2994, 3057, 3100, 3177, 3439, 3644, 4134, 4139, 4432, 4983, 5129, 5191, 5205, 5882, 5982, 6585, 7106, 7256, 7347, 7457, 7831, 7841, ...
[ "nonn" ]
A353665
[ 1, 0, 0, 0, 24, 240, 1560, 8400, 60984, 912240, 15938520, 242998800, 3300493944, 44583979440, 690641504280, 12868117189200, 264164524958904, 5481631005177840, 112822632387018850, 2367468210865875500, 52624238539033650000, 1.2585310925445417e+21 ]
[ "nonn" ]
A036050
[ 1, 1, 1, 1, 1, 3, 6, 17, 10, 35, 49, 53, 91, 125, 169, 220, 290, 378, 394, 507, 709, 917, 1229, 1475, 1924, 2347, 2851, 3293, 3568, 5597, 6739, 8130, 10131, 12250, 14401, 17705, 21569, 25967, 31174, 37186, 44462, 52964, 63187, 745...
[ "nonn" ]
A184018
[ 1, 2, 6, 19, 67, 254, 1017, 4236, 18168, 79680, 355635, 1609912, 7373401, 34102976, 159055728, 747211753, 3532452169, 16792693562, 80224098381, 384948157635, 1854469572120, 8965866981294, 43488834409737, 211569299607282 ]
[ "nonn", "easy" ]
A118954
[ 1, 2, 16, 22, 26, 28, 36, 40, 46, 50, 52, 56, 58, 64, 70, 76, 78, 82, 86, 88, 92, 94, 96, 100, 106, 112, 116, 118, 120, 122, 124, 126, 127, 134, 136, 142, 144, 146, 148, 149, 154, 156, 160, 162, 166, 170, 172, 176, 178, ...
[ "nonn" ]
A370321
[ 1, 0, 0, 6, 12, -80, 540, 3528, -35280, 82080, 3346560, -33153120, -82257120, 6269253120, -54446648256, -587596363200, 20753512416000, -140977071406080, -3956109141496320, 111209937855367680, -474928112845670400, -36237656611756614000, 911155391189543800000 ]
[ "sign" ]