id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A043231
[ 18, 81, 118, 180, 218, 281, 318, 381, 418, 481, 518, 581, 618, 681, 718, 781, 810, 881, 918, 981, 1018, 1081, 1118, 1180, 1218, 1281, 1318, 1381, 1418, 1481, 1518, 1581, 1618, 1681, 1718, 1781, 1800, 1918, 1981, 2018, 2081 ]
[ "nonn", "base" ]
A055663
[ 220, 4004, 43680, 371280, 2713200, 17907120, 109830336, 637408200, 3543239700, 19028509500, 99348849600, 506679132960, 2533395664800, 12454385680800, 60338017584000, 288616850776800, 1365157704174264, 6393385628146440, 29677938224482240, 136674715507484000 ]
[ "nonn" ]
A171805
[ 1, 3, 18, 130, 1044, 8946, 80135, 741312, 7027515, 67911855, 666525630, 6625647054, 66570488901, 674964968175, 6897258376218, 70961851119848, 734455079297433, 7641851681095236, 79886815507105170, 838655487787502600, 8837797224686208000, 93454820274339170000 ]
[ "nonn" ]
A157529
[ 22, 33, 44, 55, 66, 77, 88, 99, 110, 202, 220, 303, 312, 321, 330, 404, 413, 422, 440, 505, 514, 532, 550, 606, 615, 624, 633, 642, 651, 660, 707, 716, 725, 734, 752, 770, 808, 817, 826, 835, 844, 862, 871, 880, 909, 918, 927, 936, 945, 954, 963, 972, 981 ]
[ "base", "nonn" ]
A235391
[ 1, 1, 2, 6, 21, 78, 298, 1157, 4539, 17936, 71251, 284188, 1137076, 4561093, 18333337, 73816489, 297635750, 1201551286, 4855672249, 19640147061, 79501958895, 322037615290, 1305256267511, 5293166568270, 21475362822956, 87166344495561, 353933533606927 ]
[ "dead" ]
A188258
[ 1, 2, 5, 6, 9, 10, 13, 14, 17, 18, 19, 22, 23, 26, 27, 30, 31, 34, 35, 36, 39, 40, 43, 44, 47, 48, 51, 52, 53, 56, 57, 60, 61, 64, 65, 68, 69, 70, 73, 74, 77, 78, 81, 82, 85, 86, 89, 90, 91, 94, 95, 98, 99, 102, 103, 106, 107, 108, 111, 112, 115, 116, 119, 120, 123, 124, 125, 128, 129, 132, 133, 136, 137, 140, 141, 142, 145, 146, 149, 150, 153 ]
[ "nonn" ]
A311906
[ 1, 4, 8, 13, 17, 22, 26, 29, 33, 37, 42, 47, 52, 56, 61, 65, 70, 72, 76, 79, 84, 89, 95, 99, 104, 109, 113, 115, 120, 121, 127, 130, 138, 141, 148, 152, 157, 157, 164, 164, 170, 172, 180, 183, 191, 196, 200, 200, 207, 207 ]
[ "nonn" ]
A024709
[ 2, 5, 7, 2, 3, 2, 5, 2, 3, 2, 7, 2, 3, 5, 5, 11, 2, 2, 2, 7, 2, 2, 5, 2, 3, 3, 2, 2, 5, 2, 5, 5, 2, 13, 3, 2, 29, 3, 3, 2, 2, 3, 2, 5, 2, 19, 5, 2, 2, 2, 3, 2, 2, 3, 2, 23, 2, 47, 7, 3, 2, 2, 53, 5, 2, 29, 5, 2, 2, 2, 11, 3, 2, 5, 3, 2, 2, 5, 5, 2, 2, 2, 13, 2, 2, 5, 2, 3, 2, 2, 5, 5, 2, 5, 2, 3, 3, 7, 3, 47, 2, 5, 2, 7, 2, 2 ]
[ "nonn" ]
A122149
[ 1, 1, 1, 4, 8, 1, 3, 4, 9, 8, 10, 4, 24, 3, 8, 4, 32, 9, 18, 8, 3, 10, 22, 4 ]
[ "nonn", "more" ]
A282236
[ 1, 1, 2, 3, 5, 13, 23, 41, 114, 155, 324, 534, 1413, 2452, 4415, 12422, 22342, 35314, 113211, 153525, 322241, 531321, 1354112, 2435433, 4344545, 12335533, 22241133, 35132221, 112423354, 153111125, 315534534, 524151214, 1345241253, 2424442522, 4325234325 ]
[ "nonn", "base", "easy" ]
A086422
[ 1, 0, 0, 0, 0, 1, 1, 1, 2, 5, 7, 9, 24, 19, 35, 46, 86, 134, 187, 259, 450, 616, 823 ]
[ "dead" ]
A136514
[ 0, 2, 8, 16, 30, 44, 60, 82, 108, 138, 166, 196, 238, 278, 324, 366, 416, 468, 526, 588, 644, 714, 780, 848, 930, 1008, 1090, 1170, 1256, 1350, 1438, 1540, 1638, 1744, 1856, 1954, 2072, 2180, 2310, 2432, 2548, 2678, 2808, 2950, 3090, 3220, 3366, 3510, 3664 ]
[ "easy", "nonn" ]
A164512
[ 2, 3, 3, 4, 4, 5, 7, 8, 8, 9, 16, 17, 31, 32, 127, 128, 256, 257, 8191, 8192, 65536, 65537, 131071, 131072, 524287, 524288, 2147483647, 2147483648, 2305843009213694000, 2305843009213694000, 6.189700196426902e+26, 6.189700196426902e+26 ]
[ "hard", "nonn" ]
A383218
[ 1, 2, 6, 24, 120, 720, 5760, 51840, 518400, 5702400, 68428800, 889574400, 12454041600, 186810624000, 2988969984000, 50812489728000, 914624815104000, 17377871486976000, 347557429739520000, 7298706024529920000, 160571532539658240000, 3.6931452484121395e+21 ]
[ "nonn", "base" ]
A058345
[ 1, 1, 2, 4, 8, 64, 20480, 21558722560, 1.8963270992540673e+24 ]
[ "nonn" ]
A104050
[ 2, 4, 104, 118, 4058, 140816, 4583282, 143279864, 863481484, 4356837578, 84349156318, 129841645856, 3803306126836, 3810900219362, 140836238080822, 4756252744588444, 152260682014044220, 4707084862133101000 ]
[ "nonn" ]
A304712
[ 1, 1, 2, 3, 5, 7, 10, 14, 19, 25, 32, 43, 54, 70, 86, 105, 130, 162, 196, 240, 286, 339, 405, 485, 573, 674, 790, 922, 1072, 1252, 1456, 1685, 1939, 2226, 2557, 2923, 3349, 3822, 4347, 4931, 5593, 6335, 7170, 8092, 9105, 10233, 11495, 12903, 14458, 16169, 18063 ]
[ "nonn" ]
A290677
[ 1, 10, 110, 1000, 11100, 100000, 1111000, 10100000, 111110000, 1010000000, 11111100000, 101010000000, 1111111000000, 10111000000000, 111111110000000, 1001001000000000, 11111111100000000, 100100100000000000, 1111111111000000000, 10010010100000000000 ]
[ "nonn", "easy" ]
A004662
[ 1, 3, 11, 33, 121, 363, 1331, 4213, 14641, 46343, 163251, 531773, 2015761, 6051723, 22175571, 66571153, 244153501, 754502703, 2705710511, 10521531733, 31765015621, 115737051263, 351635174031 ]
[ "nonn", "base", "easy" ]
A027805
[ 126, 1470, 9240, 41580, 150150, 462462, 1261260, 3123120, 7147140, 15315300, 31039008, 59961720, 111105540, 198470580, 343219800, 576609264, 943854450, 1509157650, 2362159800, 3626122500, 5468192730, 8112154050, 11854124100, 17081719200, 24297273000 ]
[ "nonn", "easy" ]
A182146
[ 1, 2, 4, 26, 296, 5904, 225576, 16673252, 2410709536, 686706538432, 386940976402960, 432315602878003460, 959210666655241000000, 4.231214210938515e+24, 3.713813413140001e+28, 6.4903676908714826e+32, 2.259687256258802e+37 ]
[ "nonn" ]
A194736
[ 1, 1, 3, 2, 5, 3, 1, 6, 3, 9, 5, 1, 9, 4, 13, 7, 17, 10, 3, 15, 7, 20, 11, 2, 17, 7, 23, 12, 29, 17, 5, 24, 11, 31, 17, 3, 25, 10, 33, 17, 1, 26, 9, 35, 17, 44, 25, 6, 35, 15, 45, 24, 3, 35, 13, 46, 23, 57, 33, 9, 45, 20, 57, 31, 5, 44, 17, 57, 29, 1, 43, 14, 57, 27, 71, 40 ]
[ "nonn" ]
A284281
[ 0, 0, 3, 0, 0, 3, 0, 8, 3, 0, 0, 3, 13, 0, 3, 8, 0, 21, 0, 0, 3, 0, 23, 11, 0, 13, 3, 28, 0, 3, 0, 8, 36, 0, 0, 21, 0, 38, 16, 8, 0, 3, 43, 0, 3, 23, 0, 59, 0, 0, 3, 13, 53, 21, 0, 36, 3, 58, 0, 3, 0, 0, 66, 8, 13, 36, 0, 68, 26, 0, 0, 29, 73, 0, 3, 38, 0, 94, 0, 8 ]
[ "nonn", "easy" ]
A234064
[ 24576912260, 61295636223137, 151699488521954720, 375374879187809140000, 9.287697800451819e+23, 2.298004446356335e+27, 5.685825332236187e+30, 1.4068124971496553e+34 ]
[ "nonn" ]
A000104
[ 1, 1, 1, 2, 5, 12, 35, 107, 363, 1248, 4460, 16094, 58937, 217117, 805475, 3001127, 11230003, 42161529, 158781106, 599563893, 2269506062, 8609442688, 32725637373, 124621833354, 475368834568, 1816103345752, 6948228104703, 26618671505989, 102102788362303 ]
[ "nonn", "nice", "hard" ]
A129247
[ 1, 1, 3, 10, 36, 138, 560, 2402, 10898, 52392, 267394, 1450790, 8371220, 51327178, 333759746, 2295276480, 16639104002, 126718172670, 1010487248556, 8411744415418, 72899055533482, 656136245454232, 6120474697035762 ]
[ "nonn" ]
A227533
[ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 4, 2, 3, 2, 2, 2, 4, 2, 2, 2, 2, 2, 3, 2, 5, 2, 2, 2, 2, 2, 2, 3, 3, 2, 4, 2, 15, 2, 2, 4, 2, 2, 3, 2, 3, 2, 4, 2, 2, 2, 2, 2, 3, 2, 7, 2, 2, 2, 2, 2, 2, 2, 4, 2, 3, 2, 2, 2, 2, 3, 3, 2, 8, 2, 2, 4, 15, 2, 2, 3, 2, 2, 5, 2, 4, 2, 2 ]
[ "nonn" ]
A305370
[ 1, 2, 3, 5, 8, 15, 29, 50, 103, 164, 417, 649, 1324, 2684, 5348, 10226, 21298, 41538, 84652, 165034, 322262, 646648, 1283556, 2584860, 5163368, 10271638, 20566708, 40308350, 80758553, 161522919, 322519008, 637135132 ]
[ "nonn", "more", "base" ]
A051476
[ 4, 169, 1089, 169, 22801, 22801, 3600, 1459264, 3600, 63001, 53348416, 1946309689, 6098829025, 1946309689, 53348416, 63001, 572166400, 51799939216, 429256901329, 429256901329, 51799939216, 572166400, 1036324, 1213839841536 ]
[ "nonn" ]
A104917
[ 941, 149, 107, 149, 937, 281, 167, 811, 197, 977, 547, 769, 947, 479, 151, 857, 619, 191, 919, 619, 199, 859, 431, 947, 811, 953, 877, 773, 733, 331, 727, 659, 521, 163, 727, 409, 599, 577, 881, 163, 397, 607, 883, 787, 733, 337, 647, 751, 113, 599, 997 ]
[ "nonn", "base" ]
A223734
[ 66, 86, 89, 101, 110, 114, 131, 149, 153, 166, 171, 173, 174, 179, 182, 185, 186, 189, 198, 219, 221, 222, 227, 233, 234, 237, 241, 242, 245, 258, 261, 270, 274, 286, 291, 294, 302, 305, 309, 318, 323, 334, 338, 347, 349, 361, 363, 366, 377, 378, 387, 405, 410 ]
[ "nonn" ]
A061292
[ 2, 2, 2, 2, 6, 22, 262, 34582, 199330642, 1806032092550706, 1.24494348065768e+28, 4.481765860945172e+51 ]
[ "easy", "nonn", "nice" ]
A040813
[ 29, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58, 29, 58 ]
[ "nonn", "cofr", "easy" ]
A218014
[ 27, 6, 13, 1, 31, 4, 54, 8, 3, 100, 5, 25, 155, 28, 9, 16, 243, 19, 49, 288, 21, 62, 24, 12, 75, 422, 81, 444, 84, 2, 112, 37, 580, 11, 634, 47, 53, 150, 57, 60, 788, 20, 840, 183, 872, 10, 14, 218, 1029, 228, 80, 1074, 26, 87, 92, 99, 1237, 103, 281, 1319, 29, 15, 314, 1498, 323 ]
[ "nonn" ]
A190753
[ 6, 14, 23, 30, 39, 48, 57, 64, 72, 81, 90, 98, 106, 115, 123, 131, 140, 148, 156, 164, 172, 182, 188, 198, 205, 215, 222, 232, 239, 249, 255, 265, 273, 282, 289, 298, 306, 315, 322, 331, 339, 347, 356, 365, 373, 380, 389, 398, 407, 414, 423, 431, 440, 448, 457, 465, 473, 481, 490, 499, 506, 514, 523, 532, 540, 548, 557, 565, 573 ]
[ "nonn" ]
A295449
[ 1, 1320, 5883768, 30159472200, 163806801888376, 918503902622731300, 5.255426168361638e+21, 3.04931803383599e+25, 1.7874919250656722e+29, 1.0560503348378317e+33, 6.277811703390706e+36, 3.750627206615352e+40, 2.2500581187465464e+44 ]
[ "nonn" ]
A339878
[ 1729, 3069196417, 23915494401, 1334063001601, 6767608320001, 33812972024833, 1584348087168001, 1602991137369601, 6166793784729601, 1531757211193440000, 84388996672599520000 ]
[ "nonn", "more" ]
A132173
[ 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6 ]
[ "nonn" ]
A209544
[ 3, 17, 41, 73, 89, 97, 113, 137, 193, 233, 241, 257, 281, 313, 337, 353, 401, 409, 433, 449, 457, 521, 569, 577, 593, 601, 617, 641, 673, 761, 769, 809, 857, 881, 929, 937, 953, 977, 1009, 1033, 1049, 1097, 1129, 1153, 1193, 1201, 1217, 1249, 1289, 1297, 1321 ]
[ "nonn", "base" ]
A390542
[ 1, 3, 17, 97, 580, 3549, 22070, 138839, 881047, 5629040, 36160422, 233329967, 1511210765, 9818610764, 63966280085, 417707613785, 2733299156728, 17918056518711, 117651211075754, 773624422079360, 5093656865657644, 33576955192412844, 221573948545741700 ]
[ "nonn", "new" ]
A092494
[ 0, 1, 3, 4, 6, 7, 10, 11, 12, 13, 16, 17, 20, 21, 23, 25, 27, 28, 31, 32, 34, 36, 39, 40, 42, 43, 45, 46, 49, 50, 54, 55, 56, 58, 60, 62, 65, 66, 68, 70, 73, 74, 78, 79, 81, 83, 86, 87, 89, 90, 92, 94, 97, 98, 100, 102, 104, 106, 109, 110, 114, 115, 117, 119, 120, 122 ]
[ "nonn" ]
A048042
[ 0, 0, 0, 0, 0, 0, 0, 5, 6, 7, 28, 32, 36, 90, 100, 110, 275, 306, 338, 1001, 1127, 1260, 3780, 4256, 4760, 13532, 15180, 16929, 47880, 53700, 59920, 173635, 195052, 218086, 637307, 716210, 801350, 2330900, 2618486, 2929563, 8516781 ]
[ "nonn" ]
A357249
[ 2, 6, 24, 60, 360, 840, 10080, 7560, 0, 27720, 332640, 720720, 0, 10810800, 17297280, 36756720, 1102701600, 698377680, 27935107200, 48886437600, 0, 16062686640, 385504479360, 1204701498000, 0, 20238985166400, 4497552259200, 6987268688400, 0, 216605329340400 ]
[ "nonn" ]
A347831
[ 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 23, 24, 30, 31, 32, 34, 38, 40, 46, 47, 48, 51, 53, 57, 60, 61, 62, 64, 68, 69, 76, 79, 80, 83, 85, 92, 93, 94, 95, 96, 102, 106, 107, 109, 113, 114, 115, 120, 122, 124, 128, 136, 137, 138, 139, 141, 151, 152, 155, 158, 159, 160, 166, 167, 170, 173, 181 ]
[ "nonn", "easy" ]
A352123
[ 1, 1, -7, 73, -1135, 24241, -659767, 21796153, -846456415, 37772943841, -1904103268327, 106992035096233, -6630198107231695, 449171668238551400, -33024202381308838000, 2.618743082761141e+21, -2.227824025530437e+23, 2.0238957866498067e+25 ]
[ "sign" ]
A135964
[ 1, 1, 1, 4, 5, 21, 28, 36, 165, 220, 1001, 1365, 1820, 8568, 11628, 54264, 74613, 346104, 480700, 657800, 3108105, 4292145, 20160075, 28048800, 38567100, 183579396, 254186856, 1203322288, 1676056044, 7898654920, 11058116888 ]
[ "nonn" ]
A056470
[ 1, 1, 2, 2, 5, 5, 15, 15, 52, 52, 202, 202, 855, 855, 3845, 3845, 18002, 18002, 86472, 86472, 422005, 422005, 2079475, 2079475, 10306752, 10306752, 51263942, 51263942, 255514355, 255514355, 1275163905, 1275163905, 6368612302, 6368612302, 31821472612, 31821472612 ]
[ "nonn", "easy" ]
A042746
[ 30, 451, 27090, 406801, 24435150, 366934051, 22040478210, 330974107201, 19880486910270, 298538277761251, 17932177152585330, 269281195566541220, 16174803911145058000, 242891339862742400000, 1.4589655195675689e+22, 2.1908771927499808e+23 ]
[ "nonn", "cofr", "frac", "easy" ]
A155431
[ 1, 7, 19, 37, 94, 344, 2238, 14169, 77290, 503317, 4355803, 49651747, 642476027, 8840925123, 141069431209, 2761281750433 ]
[ "nonn" ]
A189579
[ 0, 1, 2, 3, 3, 4, 5, 5, 6, 7, 7, 7, 8, 9, 10, 10, 11, 12, 12, 12, 13, 14, 15, 15, 16, 17, 17, 17, 18, 18, 19, 20, 21, 21, 22, 23, 23, 24, 25, 25, 25, 26, 27, 28, 28, 29, 30, 30, 30, 31, 31, 32, 33, 34, 34, 35, 36, 36, 37, 38, 38, 38, 39, 40, 41, 41, 42, 43, 43, 43, 44, 44, 45, 46, 47, 47, 47, 48, 49, 50, 50 ]
[ "nonn" ]
A304596
[ 8, 4184, 54357, 1593375, 39628005, 957716506, 23762003978, 591616446858, 14572206851838, 360994251476480, 8936711526783355, 221039913402879000, 5470384324765026000, 135373164068450900000, 3.34967150449932e+21 ]
[ "nonn" ]
A165623
[ 2, 1, 1, 4, 256, 4194304, 4503599627370496, 2.076918743413931e+34, 1.7668470647783843e+72 ]
[ "nonn", "easy" ]
A088420
[ 3, 3, 1, 3, 3, 1, 3, 2, 1, 3, 1, 1, 2, 3, 1, 1, 3, 1, 3, 3, 1, 2, 1, 1, 3, 1, 1, 2, 2, 1, 1, 3, 1, 3, 2, 1, 1, 2, 1, 3, 1, 1, 2, 1, 1, 1, 3, 1, 3, 2, 1, 3, 2, 1, 3, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 3, 2, 1, 1, 1, 1, 2, 2, 1, 1, 3, 1, 1, 2, 1, 3, 1, 1, 2, 1, 1, 2, 3, 1, 1, 1, 1, 3, 3, 1, 2, 2, 1, 1 ]
[ "easy", "nonn" ]
A366464
[ 0, 1, 0, 0, 4, 4, 1, 0, 0, 0, 27, 81, 108, 81, 36, 9, 1, 0, 0, 0, 0, 84, 832, 3368, 7376, 10432, 10432, 7728, 4320, 1816, 560, 120, 16, 1, 0, 0, 0, 0, 0, 265, 4675, 39300, 201000, 687425, 1660325, 2970175, 4114225, 4569025, 4165275, 3161975, 2012650, 1075075, 479700, 177000, 53125, 12650, 2300, 300, 25, 1 ]
[ "nonn", "tabf" ]
A020667
[ 1023456789, 1026753849, 12584301976, 338920744561, 2817036000549, 16157819263041, 1727094849536, 13685690504052736, 1628413597910449, 3656158440062976, 2384185791015625, 129746337890625, 1490116119384765700, 168377826559400930, 2862423051509816000 ]
[ "nonn", "base" ]
A201598
[ 6, 24, 60, 84, 114, 180, 210, 264, 390, 564, 630, 1050, 1200, 1530, 2016, 2844, 3426, 3756, 3864, 3936, 4074, 4110, 6090, 8250, 9240, 9270, 10344, 10506, 10734, 10920, 12930, 15204, 20190, 20286, 21216, 25746, 34920, 38820, 39390, 41754, 43020, 44310, 52500, 71346 ]
[ "nonn" ]
A098032
[ 59, 131, 139, 239, 269, 281, 331, 401, 431, 691, 769, 797, 929, 1021, 1439, 1549, 1741, 1831, 1847, 1999, 2141, 2221, 2269, 2459, 2633, 2699, 2719, 2731, 3319, 3529, 3583, 3691, 3709, 3779, 4327, 4373, 4651, 4969, 4999, 5011, 5021, 5717, 5869, 5879, 5903 ]
[ "easy", "nonn" ]
A310969
[ 1, 4, 8, 10, 11, 13, 16, 21, 25, 29, 33, 35, 37, 38, 40, 45, 50, 54, 58, 59, 59, 61, 64, 69, 74, 79, 83, 85, 86, 86, 88, 93, 98, 103, 108, 109, 109, 110, 112, 117, 122, 127, 132, 135, 136, 136, 137, 141, 146, 151 ]
[ "nonn" ]
A007296
[ 1, -2, 5, -15, 52, -200, 827, -3596, 16191, -74702, 350794, -1669439, 8029728, -38963552, 190499461, -937550897, 4641253152, -23096403422, 115475977145, -579799302750, 2922325238788, -14780595276064, 74995317703482, -381625745964018, 1947147485751919 ]
[ "sign", "easy" ]
A179927
[ 1, 1, 2, 1, 3, 2, 1, 5, 5, 2, 1, 9, 13, 7, 2, 1, 17, 35, 25, 9, 2, 1, 33, 97, 91, 41, 11, 2, 1, 65, 275, 337, 189, 61, 13, 2, 1, 129, 793, 1267, 881, 341, 85, 15, 2 ]
[ "nonn", "tabl", "changed" ]
A006429
[ 0, 4, 135, 1368, 7350, 28400, 89073, 241220, 585057, 1301420, 2699125, 5282172, 9842430, 17584416, 30289835, 50530680, 81940901, 129557940, 200246795, 303220720, 450674190, 658545360, 947426925, 1343646044, 1880535825, 2599922780, 3553856649, 4806611060 ]
[ "nonn", "easy" ]
A385477
[ 33, 35, 55, 57, 75, 77, 333, 335, 355, 357, 375, 377, 533, 535, 537, 553, 555, 573, 575, 735, 737, 753, 755, 775, 777, 3333, 3335, 3337, 3353, 3355, 3357, 3375, 3377, 3535, 3537, 3553, 3555, 3573, 3575, 3577, 3735, 3737, 3753, 3755, 3757, 3773, 3775, 3777, 5335, 5337, 5353, 5355, 5357 ]
[ "nonn", "base" ]
A256093
[ 1, 3, 5, 20, 101, 572, 3470, 22040, 144669, 973356, 6676186, 46503080, 328034226, 2338460056, 16819478972, 121903180848, 889396747869, 6526715628492, 48141140144546, 356708675726088, 2653863473928870, 19816831149068360, 148466651633265540, 1115659552758534500 ]
[ "nonn" ]
A338722
[ 1, 3, 6, 8, 12, 15, 19, 21, 27, 30, 34, 38, 42, 46, 53, 55, 59, 65, 69, 73, 80, 84, 88, 92, 98, 102, 110, 113, 117, 125, 129, 131, 139, 143, 151, 156, 160, 164, 172, 176, 180, 188, 192, 196, 207, 211, 215, 219, 225, 231, 239, 243, 247, 255, 262, 266, 274, 278 ]
[ "nonn" ]
A040745
[ 27, 1, 4, 13, 1, 2, 2, 1, 13, 4, 1, 54, 1, 4, 13, 1, 2, 2, 1, 13, 4, 1, 54, 1, 4, 13, 1, 2, 2, 1, 13, 4, 1, 54, 1, 4, 13, 1, 2, 2, 1, 13, 4, 1, 54, 1, 4, 13, 1, 2, 2, 1, 13, 4, 1, 54, 1, 4, 13, 1, 2, 2, 1, 13, 4, 1, 54, 1, 4, 13, 1, 2, 2, 1, 13, 4, 1, 54, 1, 4, 13, 1 ]
[ "nonn", "cofr", "easy" ]
A223192
[ 138, 19044, 252544, 41164952, 3815358480, 386807892609, 49198404222036, 6403019500770522 ]
[ "nonn" ]
A319013
[ 0, 1, 7, 37, 201, 1231, 8653, 69273, 623521, 6235291, 68588301, 823059733, 10699776673, 149796873591, 2246953104061, 35951249665201, 611171244308673, 11001082397556404, 209020565553571970, 4180411311071440000, 87788637532500250000, 1.9313500257150053e+21 ]
[ "nonn" ]
A068260
[ 1, 657, 28398249, 80756726956857, 1.5108689909693561e+22, 1.859669891770249e+32, 1.5059337442554156e+44, 8.023000566482384e+57 ]
[ "nonn" ]
A244311
[ 13, 19, 31, 37, 79, 109, 113, 139, 193, 317, 331, 911, 991, 1453, 1481, 1669, 1831, 1901, 7127, 7561, 7589, 7687, 9343, 9413, 9811, 10223, 11821, 12889, 13627, 13633, 16979, 17551, 32297, 33529, 34157, 35747, 37409, 39521, 39829, 70957, 71339, 75653, 79633, 90289, 94793, 97583, 99877 ]
[ "nonn", "base" ]
A073111
[ 0, 0, 2, 0, 0, 35, 211, 0, 0, 56204, 337661, 0, 0, 454113487, 5183055909, 0, 0 ]
[ "nonn", "more" ]
A387306
[ 107, 191, 359, 443, 587, 719, 751, 863, 919, 947, 983, 1091, 1223, 1283, 1367, 1439, 1451, 1619, 1667, 1699, 1783, 1871, 1907, 1951, 2039, 2207, 2339, 2447, 2459, 2687, 2699, 2711, 2803, 2879, 3023, 3271, 3359, 3371, 3467, 3491, 3623, 3719, 3851, 3863, 3923 ]
[ "nonn" ]
A191216
[ 361, 230456, 1005768, 3462570, 11006128, 25925028, 61456764, 127697940, 249379116, 448408452, 740850012, 1263239320, 1914568816, 2884222410, 4371191782, 6287341056, 8758591370, 11640682466, 15938770638, 21721208748, 29153150298, 38784336168, 49888704100, 62506263054, 76188213990, 95511276660, 118760260290, 150724895476, 187405610004, 243040520764 ]
[ "nonn" ]
A290852
[ 1, 1, 1, 1, 1, 1, 1, 1, 1101, 1101, 1101, 1101, 11101, 11101, 11101, 11101, 11101, 111101, 111101, 11111101, 11111101, 11111101, 11111101, 111111101, 10111111101, 10111111101, 11111111101, 111111111101, 1111111111101, 1111111111101, 1111111111101 ]
[ "nonn", "easy" ]
A041707
[ 1, 3, 16, 83, 265, 10153, 30724, 163773, 849589, 2712540, 103926109, 314490867, 1676380444, 8696393087, 27765559705, 1063787661877, 3219128545336, 17159430388557, 89016280488121, 284208271852920, 10888930610899080, 32951000104550164, 175643931133649900 ]
[ "nonn", "frac", "easy" ]
A205262
[ 5946280, 1148637735, 224000986714, 43501020707845, 8445646803772751, 1640204498026983000, 318538318082592150000, 6.186084708702496e+22, 1.201353972529943e+25, 2.3330643795556728e+27 ]
[ "nonn" ]
A278374
[ 1, 4, 6, 8, 27, 125, 16, 12, 18, 20, 28, 50, 63, 32, 44, 98, 52, 24, 68, 42, 242, 40, 70, 338, 54, 36, 56, 116, 78, 578, 165, 130, 722, 135, 48, 164, 114, 1058, 104, 188, 285, 138, 100, 80, 230, 1682, 136, 128, 60, 1922, 244, 152, 741, 112, 225, 351, 72, 284, 2738, 90, 84, 651, 222, 3362, 711, 332, 3698, 459, 196, 96, 162, 356 ]
[ "nonn" ]
A218969
[ 0, 0, 1, 1, 3, 2, 15, 8, 65, 66, 431, 443, 3643, 3594 ]
[ "nonn", "more" ]
A278187
[ 0, 6381, 6715738, 6196345742, 5858713218010, 5537142857552112, 5232919178331758000, 4.945638025497366e+21, 4.6741271032962213e+24, 4.417520697715221e+27 ]
[ "nonn" ]
A282103
[ 1, 1, 111, 100, 11101, 10111, 1111100, 1000101, 111010111, 101111100, 11111000101, 10001010111, 1110101111100, 1011111000101, 111110001010111, 100010101111100, 11101011111000100, 10111110001010112, 1111100010101111000, 1000101011111000000 ]
[ "nonn", "easy" ]
A008409
[ 1, 0, 4320, 61440, 522720, 2211840, 8960640, 23224320, 67154400, 135168000, 319809600, 550195200, 1147643520, 1771683840, 3371915520, 4826603520, 8593797600, 11585617920, 19590534240, 25239859200, 40979580480, 50877235200 ]
[ "nonn", "easy", "nice" ]
A024868
[ 6, 8, 22, 27, 52, 61, 100, 114, 170, 190, 266, 293, 392, 427, 552, 596, 750, 804, 990, 1055, 1276, 1353, 1612, 1702, 2002, 2106, 2450, 2569, 2960, 3095, 3536, 3688, 4182, 4352, 4902, 5091, 5700, 5909, 6580, 6810, 7546, 7798, 8602, 8877, 9752, 10051, 11000, 11324, 12350 ]
[ "nonn", "easy" ]
A181760
[ 1, 1, 2, 120, 255024, 22869362880, 136434451994755200, 8.226278650244567e+25, 6.980114960816119e+36, 1.0909986439491561e+50, 3.9593595616760554e+65 ]
[ "nonn" ]
A352635
[ 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 3, 2, 1, 1, 1, 1, 2, 1, 2, 2, 1, 1, 1, 4, 3, 2, 1, 1, 3, 1, 1, 2, 2, 1, 3, 2, 3, 1, 1, 2, 3, 2, 3, 2, 2, 1, 6, 1, 1, 4, 1, 3, 1, 2, 2, 2, 1, 1, 3, 3, 2, 1, 3, 2, 4, 2, 1, 2, 3, 1, 3, 4, 1, 2, 2, 4, 5, 1, 3, 1, 1, 2, 3, 4, 1, 2, 3, 3, 6, 2, 3, 3, 2, 1, 4, 10 ]
[ "nonn" ]
A068707
[ 41, 241, 1101121141, 101214161, 2468101, 246810121, 6810121416181, 50525456586062640, 1618202224262830300, 8.284868890929497e+21, 5.254565860626466e+22, 4.2444648505254567e+24 ]
[ "base", "nonn" ]
A295123
[ 1, -1, -7, -14, 10, 93, 242, 229, -410, -2446, -5500, -6458, 4062, 38899, 104715, 165843, 103045, -327200, -1393131, -3075317, -4305200, -2069461, 9129361, 35219829, 75832840, 109569915, 74818084, -143480059, -686408279, -1607860793, -2614721006, -2674073316 ]
[ "sign" ]
A017512
[ 10000, 194481, 1048576, 3418801, 8503056, 17850625, 33362176, 57289761, 92236816, 141158161, 207360000, 294499921, 406586896, 547981281, 723394816, 937890625, 1196883216, 1506138481, 1871773696, 2300257521, 2798410000, 3373402561, 4032758016, 4784350561 ]
[ "nonn", "easy" ]
A005109
[ 2, 3, 5, 7, 13, 17, 19, 37, 73, 97, 109, 163, 193, 257, 433, 487, 577, 769, 1153, 1297, 1459, 2593, 2917, 3457, 3889, 10369, 12289, 17497, 18433, 39367, 52489, 65537, 139969, 147457, 209953, 331777, 472393, 629857, 746497, 786433, 839809, 995329, 1179649, 1492993, 1769473, 1990657 ]
[ "nonn", "nice", "easy" ]
A005265
[ 3, 2, 5, 29, 11, 7, 13, 37, 32222189, 131, 136013303998782200, 31, 197, 19, 157, 17, 8609, 1831129, 35977, 508326079288931, 487, 10253, 1390043, 18122659735201507000, 25319167, 9512386441, 85577, 1031, 3650460767, 107, 41, 811, 15787, 89, 68168743, 4583, 239, 1283, 443, 902404933, 64775657, 2753, 23, 149287, 149749, 7895159, 79, 43, 1409, 184274081, 47, 569, 63843643 ]
[ "nonn", "nice", "hard" ]
A136415
[ 4, 6, 12, 14, 20, 22, 46, 52, 54, 60, 70, 76, 92, 94, 116, 124, 126, 140, 166, 174, 180, 182, 204, 206, 214, 220, 230, 236, 244, 252, 262, 276, 284, 286, 292, 294, 302, 332, 340, 350, 356, 364, 372, 374, 390, 404, 412, 430, 460, 484, 494, 510, 516, 526, 532 ]
[ "nonn" ]
A284663
[ 3, 15, 51, 179, 663, 2439, 8935, 32771, 120219, 440975, 1617531, 5933267, 21763823, 79831879, 292831311, 1074134531, 3940032883, 14452434639, 53012975555, 194456895859, 713287340551, 2616409296967, 9597250953527, 35203676264195, 129130605057163 ]
[ "nonn" ]
A177062
[ 1, 2, 1, 3, 2, 2, 2, 4, 3, 3, 2, 3, 3, 3, 3, 5, 4, 4, 4, 4, 3, 3, 2, 4, 4, 4, 5, 4, 4, 4, 4, 6, 5, 5, 4, 5, 4, 4, 4, 5, 6, 3, 3, 4, 4, 2, 3, 5, 5, 4, 4, 5, 5, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 7, 6, 6, 5, 6, 5, 5, 5, 6, 5, 5, 5, 4, 4, 4, 4 ]
[ "base", "easy", "nonn" ]
A113539
[ 2, 4, 2, 14, 10, 26, 8, 80, 20, 20, 110, 64, 8, 16, 110, 106, 10, 280, 8, 166, 92, 364, 68, 310, 130, 836, 70, 364, 238, 434, 892, 1844, 58, 140, 10, 740, 482, 1274, 308, 494, 1220, 2644, 790, 646, 2248, 2456, 422, 314, 1072, 1124, 782, 200, 98, 1826, 1502 ]
[ "nonn" ]
A203947
[ 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 0, 1, 2, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 3, 1, 0, 1, 0, 1, 2, 1, 1, 2, 1, 0, 1, 1, 1, 2, 3, 2, 1, 1, 1, 1, 0, 1, 3, 1, 1, 3, 1, 0, 1, 0, 1, 2, 1, 2, 4, 2, 1, 2, 1, 0, 1, 1, 1, 2, 3, 2, 2, 3, 2, 1, 1, 1, 1, 0, 1, 3, 1, 2, 5, 2, 1, 3, 1, 0, 1, 0, 1, 2, 1, 2, 4, 2, 2 ]
[ "nonn", "tabl" ]
A299908
[ 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 0, 1, 0, 1, 2, 1, 0, 0, 1, 0, 1, 0, 1, 2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 2, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 2, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 2, 1 ]
[ "nonn", "tabf" ]
A046258
[ 8, 9, 23, 51, 69, 81, 93, 129, 169, 179, 181, 273, 321, 321, 449, 639, 769, 857, 1047, 1213, 1233, 1443, 1587, 1637, 1953, 2433, 2599, 2639, 2901, 3261, 3681, 4059, 5109, 5169, 5407, 5691, 6149, 6531, 7939, 8081, 8211, 8439, 8589, 8623, 8663, 8757, 9459 ]
[ "nonn", "base" ]
A302580
[ 6, 9, 11, 16, 20, 21, 23, 27, 29, 30, 31, 33, 34, 36, 37, 38, 41, 44, 46, 49, 53, 56, 58, 59, 60, 61, 63, 64, 65, 66, 71, 72, 79, 80, 81, 82, 85, 86, 91, 93, 94, 96, 97, 98, 102, 104, 106, 107, 110, 111, 114, 115, 116, 120, 121, 122, 124, 128, 129, 131, 133, 135, 136, 137, 141, 142, 146, 148 ]
[ "nonn" ]
A174749
[ 1, 35, 2449, 171395, 11995201, 839492675, 58752492049, 4111834950755, 287769694060801, 20139766749305316, 1409495902757311200, 98644573426262470000, 6.903710643935616e+21, 4.8316110050206686e+23 ]
[ "nonn", "easy" ]
A242998
[ 0, 1, 1, 2, 1, 1, 2, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
[ "nonn", "hard", "more" ]
A264882
[ 3, 0, 56, 36, 3613, 22400, 356692, 3303808, 37498613, 378705540, 3968118198, 40855251236, 419847061269, 4338625113664, 44432810271640, 458593963707000, 4699321892473274, 48406074363574610, 496575268524702600 ]
[ "nonn" ]
A004716
[ 1, 4, 6, 8, 9, 10, 20, 21, 23, 27, 28, 29, 32, 33, 34, 35, 36, 37, 39, 40, 41, 42, 44, 46, 47, 49, 54, 55, 56, 57, 60, 61, 62, 63, 64, 65, 67, 77, 79, 80, 84, 87, 93, 95, 102, 103, 105, 109, 111, 112, 113, 115, 117 ]
[ "nonn" ]