id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A289493
[ 2, 1, 1, 1, 2, 2, 2, 3, 2, 2, 3, 2, 3, 4, 4, 4, 4, 5, 4, 5, 5, 4, 5, 5, 6, 6, 6, 7, 7, 7, 6, 6, 7, 7, 8, 8, 8, 9, 9, 8, 8, 7, 8, 9, 8, 9, 10, 10, 9, 10, 10, 9, 10, 9, 9, 10, 9, 10, 10, 11, 12, 12, 12, 12, 13, 13, 14, 14, 13, 12, 13, 13, 13, 13, 13, 13, 14, 15, 14, 15 ]
[ "nonn" ]
A276617
[ 1, 1, 3, 1, 4, 4, 1, 5, 6, 5, 1, 6, 8, 7, 7, 1, 7, 10, 9, 13, 9, 1, 8, 12, 11, 21, 16, 10, 1, 9, 14, 13, 31, 25, 18, 11, 1, 10, 16, 15, 43, 36, 28, 19, 13, 1, 11, 18, 17, 57, 49, 40, 29, 25, 15, 1, 12, 20, 19, 73, 64, 54, 41, 41, 28, 16, 1, 13, 22, 21, 91, 81, 70, 55, 61, 45, 30, 17, 1, 14, 24, 23, 111, 100, 88, 71, 85, 66, 48, 31, 18 ]
[ "nonn", "base", "tabl" ]
A085213
[ 0, 1, 1, 10, 11, 10, 11, 110, 110, 11, 100, 111, 1100, 111, 100, 101, 1100, 1110, 1110, 1100, 101, 110, 1011, 11000, 1111, 11000, 1101, 110, 111, 1110, 10110, 11100, 11100, 11010, 1110, 111, 1000, 1111, 11100, 10111, 110000, 11101, 11100, 1111, 1000, 1001 ]
[ "nonn", "tabl", "base" ]
A294502
[ 1, 2, 5, 15, 45, 132, 381, 1086, 3060, 8531, 23563, 64560, 175639, 474790, 1275929, 3410180, 9068075, 23998671, 63230680, 165904474, 433596795, 1129037237, 2929620046, 7576584801, 19532878559, 50205938903, 128676829149, 328895341731, 838453003422 ]
[ "nonn" ]
A190674
[ 2, 3, 6, 9, 10, 13, 14, 17, 18, 21, 24, 25, 28, 29, 32, 33, 35, 36, 39, 40, 43, 44, 47, 48, 50, 51, 54, 55, 58, 59, 62, 65, 66, 69, 70, 73, 74, 77, 80, 81, 84, 85, 88, 89, 91, 92, 95, 96, 99, 100, 103, 106, 107, 110, 111, 114, 115, 118, 121, 122, 125, 126, 129, 130, 132, 133, 136, 137, 140, 141, 144, 145, 147, 148, 151, 152, 155, 156 ]
[ "nonn" ]
A109608
[ 2, 3, 5, 7, 10, 11, 13, 14, 15, 17, 19, 21, 23, 25, 29, 31, 35, 37, 41, 43, 47, 49, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 105, 106, 107, 109, 111, 113, 115, 118, 119, 122, 123, 125, 127, 129, 131, 133, 134, 137, 139, 141, 142, 145, 146, 147, 149, 151, 155 ]
[ "base", "easy", "nonn" ]
A228307
[ 105, 225, 420, 714, 1134, 1710, 2475, 3465, 4719, 6279, 8190, 10500, 13260, 16524, 20349, 24795, 29925, 35805, 42504, 50094, 58650, 68250, 78975, 90909, 104139, 118755, 134850, 152520, 171864, 192984, 215985, 240975, 268065, 297369, 329004, 363090 ]
[ "nonn", "easy" ]
A306606
[ 1, 2, 2, 3, 4, 3, 3, 3, 3, 6, 5, 4, 7, 5, 2, 5, 5, 6, 6, 3, 4, 5, 1, 2, 5, 6, 5, 5, 6, 3, 3, 2, 2, 6, 5, 3, 9, 7, 3, 6, 4, 5, 8, 3, 6, 7, 2, 4, 7, 6, 8, 9, 9, 6, 6, 5, 3, 9, 9, 6, 11, 7, 4, 10, 5, 6, 13, 5, 5, 9, 2, 5, 7, 7, 7, 10, 7, 3, 5, 3, 3, 6, 6, 5, 11, 6, 6, 9, 4, 6, 11, 3, 5, 9, 2, 5, 4, 4, 7, 11 ]
[ "nonn" ]
A282036
[ 2, 14, 33, 95, 161, 279, 473, 658, 944, 1139, 1491, 1738, 1826, 2884, 2996, 4318, 4585, 5004, 6191, 6683, 7849, 8413, 10314, 10746, 11394, 13157, 13393, 16013, 16566, 18936, 19783, 20376, 23946, 27057, 27804, 30883, 35541, 35232, 36384, 39832, 45671, 50858, 51363, 50059, 55097, 56040 ]
[ "nonn" ]
A033056
[ 1, 2, 3, 4, 6, 8, 11, 13, 16, 18, 21, 23, 30, 31, 32, 33, 34, 40, 41, 42, 43, 44, 55, 56, 57, 58, 59, 65, 66, 67, 68, 69, 80, 81, 82, 83, 84, 90, 91, 92, 93, 94, 105, 106, 107, 108, 109, 115, 116, 117, 118, 119, 151, 153, 156, 158, 161 ]
[ "nonn", "base" ]
A099099
[ 1, 1, 1, 2, 6, 16, 37, 80, 172, 377, 839, 1874, 4175, 9274, 20577, 45665, 101393, 225193, 500162, 1110790, 2466760, 5477917, 12164896, 27015092, 59993817, 133231279, 295872778, 657057431, 1459155634, 3240410561, 7196122817 ]
[ "easy", "nonn" ]
A013348
[ 1, 0, 0, 40, 896, 62304, 6528896, 950205568, 189104984064, 48968006626816, 16013733248841728, 6455144284204947000, 3.144635341624935e+21, 1.8213571436075303e+24, 1.2371215246227396e+27 ]
[ "nonn" ]
A025391
[ 190, 198, 210, 222, 231, 238, 246, 255, 270, 282, 286, 290, 294, 302, 303, 306, 310, 315, 318, 326, 330, 334, 335, 338, 342, 345, 350, 351, 354, 357, 358, 363, 366, 369, 370, 374, 375, 378, 381, 382, 385, 386, 387, 390, 393, 394, 398, 399, 402, 405, 406, 407, 410, 411 ]
[ "nonn" ]
A369511
[ 1, 4, 26, 206, 1815, 17082, 168159, 1710234, 17828973, 189504744, 2045971440, 22374997320, 247344411792, 2759394009008, 31027178033064, 351270123392892, 4000793799046578, 45809545263096830, 527010005799822850, 6088666065809281000, 70612995488695880000 ]
[ "nonn" ]
A003136
[ 0, 1, 3, 4, 7, 9, 12, 13, 16, 19, 21, 25, 27, 28, 31, 36, 37, 39, 43, 48, 49, 52, 57, 61, 63, 64, 67, 73, 75, 76, 79, 81, 84, 91, 93, 97, 100, 103, 108, 109, 111, 112, 117, 121, 124, 127, 129, 133, 139, 144, 147, 148, 151, 156, 157, 163, 169, 171, 172, 175, 181, 183, 189, 192 ]
[ "core", "easy", "nonn", "nice" ]
A213023
[ 1, 2, 2, 3, 2, 2, 4, 4, 5, 3, 4, 5, 4, 6, 4, 4, 5, 7, 5, 3, 6, 8, 8, 8, 6, 3, 7, 6, 10, 6, 5, 10, 4, 8, 7, 8, 10, 6, 9, 8, 5, 10, 10, 11, 6, 9, 11, 6, 12, 9, 8, 8, 10, 9, 6, 6, 15, 12, 9, 9, 6, 13, 10, 13, 10, 7, 14, 12, 12, 8, 7, 13, 10, 16, 9, 10, 10, 12 ]
[ "nonn" ]
A134493
[ 1, 13, 233, 4181, 75025, 1346269, 24157817, 433494437, 7778742049, 139583862445, 2504730781961, 44945570212853, 806515533049393, 14472334024676220, 259695496911122600, 4660046610375530000, 83621143489848430000, 1.500520536206896e+21, 2.692574850823428e+22 ]
[ "nonn", "easy" ]
A176723
[ 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
[ "nonn", "easy", "tabf" ]
A284384
[ 0, 1, 1, 2, 3, 4, 6, 7, 10, 11, 14, 15, 18, 19, 23, 24, 29, 30, 35, 36, 41, 42, 47, 48, 53, 54, 60, 61, 68, 69, 76, 77, 84, 85, 92, 93, 100, 101, 108, 109, 116, 117, 125, 126, 135, 136, 145, 146, 155, 156, 165, 166, 175, 176, 185, 186, 195, 196, 205, 206, 215, 216 ]
[ "nonn" ]
A210265
[ 406580, 292930403, 202860601666, 140618780386783, 97427021073113620, 67504950532170900000, 4.677225659463502e+22, 3.2407200627974582e+25, 2.2454047914872393e+28, 1.5557785658285685e+31 ]
[ "nonn" ]
A343186
[ 8, 9, 70, 82, 216, 518, 1773, 1939, 1970, 2304, 2600, 2601, 2726, 38248, 40333, 48447, 118209, 165924, 175592, 234234, 239683, 332556, 411547, 743109, 1010745, 1272360, 1413320, 2132919, 2392838, 2521311, 3078390, 3252972, 3516260, 3709926, 4273507, 4718718, 5009819, 5750522, 9766605 ]
[ "nonn" ]
A361252
[ 503, 10169, 10253, 10303, 10753, 11047, 12409, 12503, 13049, 14083, 20333, 20773, 20929, 21023, 21067, 21407, 23053, 23059, 25033, 25303, 29303, 30089, 30103, 31063, 32057, 32099, 32303, 33403, 38083, 40087, 40213, 40253, 40483, 40787, 41609, 42403, 43103, 46103, 50227, 50363 ]
[ "nonn", "base" ]
A329877
[ 1, 1, 1, 2, 4, 3, 7, 10, 18, 1, 13, 5, 2, 42, 3, 3, 22, 18, 23, 15, 29, 33, 23, 17, 5, 33, 3, 134, 94, 84, 6, 57, 103, 13, 92, 63, 90, 60, 156, 39, 10, 108, 114, 65, 78, 67, 52, 57, 11, 21, 114, 79, 366, 128, 76, 22, 382, 36, 88, 34, 68, 110, 2, 72, 14, 28 ]
[ "nonn", "base" ]
A017758
[ 1, 95, 4560, 147440, 3612280, 71523144, 1192052400, 17199613200, 219295068300, 2509710226100, 26100986351440, 249145778809200, 2200787712814600, 18114175790089400, 139737927523546800, 1015428940004440000, 6981073962530525000, 45582306461228730000 ]
[ "nonn" ]
A290249
[ 2, 6, 8, 30, 32, 36, 38, 210, 212, 216, 218, 240, 242, 246, 248, 2310, 2312, 2316, 2318, 2340, 2342, 2346, 2348, 2520, 2522, 2526, 2528, 2550, 2552, 2556, 2558, 30030, 30032, 30036, 30038, 30060, 30062, 30066, 30068, 30240, 30242, 30246, 30248, 30270, 30272, 30276, 30278, 32340, 32342, 32346, 32348, 32370 ]
[ "nonn" ]
A368204
[ 1, 1, 0, 2, 2, 2, 29, 56, 191, 380, 5097, 14288, 74359, 283884, 1106529, 13588409, 53640963, 350573155, 1867738775, 10770352150, 50050737949, 744605446778, 3615378756421, 29368052533243, 195027586980839, 1442227919200245, 8964685271444243, 61478734886319330 ]
[ "nonn" ]
A115964
[ 8, 216, 27000, 9261000, 12326391000, 27081081027000, 133049351085651000, 912585499096480200000, 1.1103427767506875e+25, 2.7080149982172516e+29, 8.067447481189014e+33 ]
[ "easy", "frac", "nonn" ]
A248662
[ 1, 120, 144, 180, 216, 240, 252, 288, 300, 336, 360, 420, 432, 480, 504, 540, 576, 600, 630, 648, 660, 672, 720, 756, 792, 810, 840, 864, 900, 960, 1008, 1050, 1080, 1120, 1152, 1176, 1200, 1260, 1296, 1320, 1344, 1350, 1400, 1440, 1500, 1512, 1560 ]
[ "nonn" ]
A110134
[ 5, 12, 13, 15, 17, 20, 21, 24, 25, 28, 29, 33, 35, 36, 37, 39, 40, 41, 44, 45, 48, 51, 52, 53, 55, 56, 57, 60, 61, 63, 65, 68, 69, 72, 73, 75, 76, 77, 80, 84, 85, 87, 88, 89, 91, 92, 93, 95, 96, 97, 99, 100, 101, 104, 105, 108, 109, 111, 112, 113, 115, 116, 117, 119, 120 ]
[ "nonn" ]
A299258
[ 1, 5, 13, 25, 41, 62, 89, 121, 157, 197, 242, 293, 349, 409, 473, 542, 617, 697, 781, 869, 962, 1061, 1165, 1273, 1385, 1502, 1625, 1753, 1885, 2021, 2162, 2309, 2461, 2617, 2777, 2942, 3113, 3289, 3469, 3653, 3842, 4037, 4237, 4441, 4649, 4862, 5081, 5305, 5533, 5765, 6002, 6245, 6493, 6745 ]
[ "nonn", "easy" ]
A258331
[ 1, 585, 20440, 299593, 1968876, 11957400, 40471600, 153391689, 402321277, 1151792460, 2359720584, 6123680920, 10609328380, 23675886000, 40243825440, 78536544841, 118612018980, 235357947045, 322734750520, 589861467468, 827239504000, 1380436541640 ]
[ "nonn", "easy", "mult" ]
A030171
[ 8, 8, 5, 6, 0, 3, 1, 9, 4, 4, 1, 0, 8, 8, 8, 7, 0, 0, 2, 7, 8, 8, 1, 5, 9, 0, 0, 5, 8, 2, 5, 8, 8, 7, 3, 3, 2, 0, 7, 9, 5, 1, 5, 3, 3, 6, 6, 9, 9, 0, 3, 4, 4, 8, 8, 7, 1, 2, 0, 0, 1, 6, 5, 8, 7, 5, 1, 3, 6, 2, 2, 7, 4, 1, 7, 3, 9, 6, 3, 4, 6, 6, 6, 4, 7, 9, 8, 2, 8, 0, 2, 1, 4, 2, 0, 3, 5, 9 ]
[ "nonn", "cons" ]
A201793
[ 251, 2267, 6299, 12347, 16127, 20411, 30491, 49391, 81647, 90971, 100799, 121967, 170351, 183707, 197567, 211931, 226799, 242171, 344987, 363887, 383291, 444527, 465947, 510299, 580607, 605051, 681407, 790271, 847727, 907199 ]
[ "nonn", "easy" ]
A352892
[ 1, 2, 2, 6, 2, 2, 2, 12, 4, 8, 2, 14, 2, 18, 6, 24, 2, 6, 2, 54, 10, 50, 2, 28, 4, 98, 8, 150, 2, 2, 2, 48, 14, 242, 6, 70, 2, 338, 22, 108, 2, 8, 2, 294, 12, 578, 2, 56, 4, 20, 26, 726, 2, 12, 10, 300, 34, 722, 2, 26, 2, 1058, 20, 96, 14, 18, 2, 1014, 38, 32, 2, 140, 2, 1682, 18, 1734, 6, 50, 2, 216, 16, 1922, 2, 686 ]
[ "nonn" ]
A212522
[ 0, 0, 0, 0, 4, 12, 27, 60, 112, 180, 300, 450, 648, 924, 1274, 1680, 2240, 2880, 3645, 4590, 5700, 6930, 8470, 10164, 12096, 14352, 16900, 19656, 22932, 26460, 30375, 34800, 39680, 44880, 50864, 57222, 64152, 71820, 80142, 88920, 98800, 109200, 120393 ]
[ "nonn", "easy" ]
A069441
[ 0, 4, 84, 1074, 11058, 102448, 896026, 7578952, 62820362, 514178822, 4174954460, 33725176208, 271523097884, 2181288088576, 17498432045552, 140241880816930, 1123280018219562, 8993350007112124, 71984384316723140, 576073752326317440, 4609640266662591000 ]
[ "nonn", "easy" ]
A337226
[ 1, 1, 2, 1, 3, 4, 2, 5, 1, 6, 3, 7, 8, 9, 4, 10, 2, 11, 5, 12, 1, 13, 6, 14, 15, 3, 16, 7, 17, 18, 8, 19, 20, 21, 22, 9, 23, 4, 24, 10, 25, 2, 26, 11, 27, 5, 28, 12, 29, 1, 30, 13, 31, 6, 32, 33, 14, 34, 15, 35, 36, 3, 37, 16, 38, 39, 40, 7, 41, 42, 17, 43, 18, 44, 45, 8 ]
[ "nonn", "nice" ]
A234487
[ 14402, 51950, 187196, 677138, 2455350, 8928348, 32545706, 118945534, 435728940, 1600124066, 5889188814, 21725555324, 80316758842, 297580824166, 1104798114372, 4110348767602, 15322030940326, 57230791424428 ]
[ "nonn" ]
A288599
[ 2, 4, 6, 10, 16, 28, 50, 90, 164, 300, 550, 1010, 1856, 3412, 6274, 11538, 21220, 39028, 71782, 132026, 242832, 446636, 821490, 1510954, 2779076, 5111516, 9401542, 17292130, 31805184, 58498852, 107596162, 197900194, 363995204, 669491556, 1231386950 ]
[ "nonn", "easy" ]
A185890
[ 65222436072, 375382835991994, 2533647121080970000, 1.6763506421271198e+22, 1.1038014223796012e+26, 7.342380182125252e+29, 4.897346164996077e+33 ]
[ "nonn" ]
A253273
[ 1, 1, 2, 1, 3, 3, 1, 4, 7, 4, 1, 5, 12, 14, 5, 1, 6, 18, 30, 25, 6, 1, 7, 25, 53, 66, 41, 7, 1, 8, 33, 84, 136, 132, 63, 8, 1, 9, 42, 124, 244, 315, 245, 92, 9, 1, 10, 52, 174, 400, 636, 673, 428, 129, 10, 1, 11, 63, 235, 615, 1152, 1522, 1346, 711, 175, 11 ]
[ "nonn", "tabl" ]
A274093
[ 0, -1, 2, 2, -3, -3, -3, 4, 4, 4, 4, -5, -5, -5, -5, -5, 6, 6, 6, 6, 6, 6, -7, -7, -7, -7, -7, -7, -7, 8, 8, 8, 8, 8, 8, 8, 8, -9, -9, -9, -9, -9, -9, -9, -9, -9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, -11, -11, -11, -11, -11, -11, -11, -11, -11, -11, -11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12 ]
[ "sign" ]
A319746
[ 12, 18, 32, 35, 43, 59, 142, 187, 241, 265, 610, 778, 1521, 2163, 2625, 3267, 3729, 9242, 15905, 16725, 18852, 56207, 63265, 87538, 94596, 333718, 780890, 839383, 959394, 1114534, 1745662, 2198585, 2424613, 2815415, 5501438, 7371962, 9717796, 21010738, 27800086, 31173396 ]
[ "nonn", "base" ]
A120152
[ 6, 8, 11, 14, 19, 25, 34, 45, 60, 80, 107, 142, 190, 253, 337, 450, 600, 800, 1066, 1422, 1896, 2528, 3370, 4494, 5992, 7989, 10652, 14203, 18937, 25249, 33666, 44888, 59850, 79800, 106400, 141867, 189156, 252208, 336277, 448370 ]
[ "nonn" ]
A266787
[ 1, 11, 1100, 1010111, 1111000, 11010001111, 1111010000, 111010001111111, 1111010000000, 1111010001111111200, 1111010000000000, 1.1111010001111111e+22, 1111010000000000000, 1.111110100011111e+26, 1.11101e+21, 1.1111110100011111e+30 ]
[ "nonn", "easy" ]
A054165
[ 0, 0, 1, 2, 4, 7, 12, 23, 41, 73, 136, 253, 471, 888, 1684, 3211, 6155, 11831, 22820, 44137, 85539, 166105, 323119, 629511, 1228111, 2398846, 4690672, 9181509, 17988393, 35272010, 69215936, 135921301, 267089907, 525160968, 1033179029 ]
[ "nonn" ]
A041725
[ 1, 1, 2, 11, 134, 145, 859, 1004, 1863, 4730, 16053, 20783, 390147, 410930, 1622937, 3656804, 5279741, 8936545, 49962466, 58899011, 756750598, 3842652001, 4599402599, 8442054600, 325397477399, 333839531999, 659237009398, 3630024578989, 44219531957266 ]
[ "nonn", "frac", "easy" ]
A157609
[ 2640, 5302, 7964, 10626, 13288, 15950, 18612, 21274, 23936, 26598, 29260, 31922, 34584, 37246, 39908, 42570, 45232, 47894, 50556, 53218, 55880, 58542, 61204, 63866, 66528, 69190, 71852, 74514, 77176, 79838, 82500, 85162, 87824, 90486 ]
[ "nonn", "easy" ]
A294443
[ 1, 1, 2, 3, 5, 7, 13, 20, 31, 48, 78, 118, 191, 300, 465, 734, 1175, 1850, 2926, 4597, 7296, 11552, 18278, 28863, 45832, 72356, 114742, 181721 ]
[ "dead" ]
A302381
[ 0, 1, 0, 1, 3, 0, 2, 15, 11, 0, 3, 46, 76, 34, 0, 5, 161, 430, 475, 111, 0, 8, 601, 2886, 4640, 2771, 361, 0, 13, 2208, 19215, 56541, 48980, 16451, 1172, 0, 21, 8053, 127535, 688999, 1089035, 514655, 97160, 3809, 0, 34, 29415, 847604, 8334338, 24209608, 20993054 ]
[ "nonn", "tabl" ]
A109491
[ 1, 3, 6, 42, 126, 756, 2016, 30240, 196560, 1769040, 7076160, 99066240, 462309120, 3698472960, 22190837760, 687915970560, 6191243735040, 120729252833280, 804861685555200, 16902095396659200, 180289017564364800 ]
[ "nonn", "base" ]
A323601
[ 4, 3, 3, 8, 8, 3, 7, 3, 9, 1, 1, 7, 5, 5, 8, 1, 2, 0, 4, 7, 5, 7, 6, 8, 3, 3, 2, 8, 4, 8, 3, 5, 8, 7, 5, 4, 6, 0, 9, 9, 9, 0, 7, 2, 7, 7, 8, 7, 4, 5, 9, 8, 7, 6, 4, 4, 4, 5, 4, 7, 3, 0, 3, 5, 3, 2, 2, 0, 3, 2, 5, 1, 6, 5, 3, 1, 9, 8, 4, 2, 1, 5, 2, 0, 7, 8, 4, 0, 2, 1, 7, 7, 4, 4, 5, 6, 1, 0, 2, 0, 8, 8, 7, 4, 4, 1 ]
[ "nonn", "cons" ]
A379512
[ 0, 0, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 2, 3, 4, 5, 6, 7, 8, 9, 2, 2, 0, 23, 0, 25, 0, 27, 0, 29, 3, 3, 32, 0, 34, 35, 0, 37, 38, 0, 4, 4, 0, 43, 0, 45, 0, 47, 0, 49, 5, 5, 52, 53, 54, 0, 56, 57, 58, 59, 6, 6, 0, 0, 0, 65, 0, 67, 0, 0, 7, 7, 72, 73, 74, 75, 76, 0, 78, 79, 8, 8, 0, 83, 0, 85, 0, 87 ]
[ "nonn", "base", "easy" ]
A353090
[ 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, 11, 11, 12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 15, 16, 16, 16, 17, 17, 18, 18, 18, 19, 19, 19, 20, 20, 20, 21, 21, 21, 22, 22, 22, 23, 23, 23, 24, 24, 25, 25, 25, 26, 26, 26, 27 ]
[ "nonn" ]
A331903
[ 1, 2, 4, 5, 6, 8, 10, 12, 14, 17, 20, 23, 26, 29, 33, 36, 40, 45, 49, 53, 58, 63, 68, 74, 79, 85, 91, 97, 104, 110, 117, 124, 131, 139, 146, 154, 162, 170, 179, 187, 196, 205, 214, 224, 233, 243, 253, 263, 274, 284, 295, 306, 318, 329, 341, 353, 365, 377, 389 ]
[ "nonn" ]
A020439
[ 2629, 3646, 4924, 5692, 5833, 5836, 6172, 6703, 6801, 7389, 7438, 8158, 8287, 8551, 8654, 9103, 10041, 10079, 10096, 10629, 10936, 11038, 11068, 11116, 11335, 11383, 11519, 11824, 11863, 11995, 12016, 12044, 12494, 12751, 12811, 12895, 13372, 13569 ]
[ "nonn" ]
A152690
[ 1, 2, 4, 16, 304, 34864, 24918064, 125436246064, 5056710181206064, 1.834938528961266e+21, 6.658608419043266e+27, 2.6579027395500038e+35 ]
[ "nonn" ]
A163872
[ 1, 5, 19, 67, 227, 751, 2445, 7869, 25107, 79567, 250793, 786985, 2460397, 7667921, 23832931, 73902627, 228692115, 706407903, 2178511449, 6708684009, 20632428249, 63380014845, 194486530791, 596213956023, 1826103432573, 5588435470401, 17089296473655 ]
[ "nonn" ]
A038844
[ 5, 21, 37, 72, 73, 76, 100, 121, 153, 221, 233, 237, 245, 276, 288, 292, 296, 300, 305, 333, 336, 341, 348, 352, 357, 380, 381, 397, 445, 448, 461, 465, 472, 492, 545, 557, 565, 576, 577, 601, 605, 637, 648, 657, 676, 688, 692, 696, 737, 752, 753, 761, 776 ]
[ "nonn" ]
A263963
[ 2265, 283641, 180329601, 64094922409, 29721673646857, 12381134843880744, 5400689161170746000, 2.3110340041493538e+21, 9.969743712377244e+23, 4.2863164560662665e+26, 1.8454673100236363e+29 ]
[ "nonn" ]
A244248
[ 185, 247, 253, 295, 329, 355, 453, 471, 533, 565, 583, 671, 689, 703, 755, 781, 785, 815, 841, 989, 1037, 1099, 1121, 1159, 1189, 1207, 1219, 1329, 1403, 1441, 1473, 1541, 1555, 1643, 1661, 1703, 1751, 1793, 1797, 1819, 1821, 1853, 1921, 1941, 1957, 2123, 2189 ]
[ "nonn", "base" ]
A154471
[ 31706, 4517553, 4875253, 59657666, 65204804, 467824043836025, 289931140991491540000, 2.329930606516259e+26, 1.2090001045837622e+31, 4.183107219432741e+34 ]
[ "nonn" ]
A063524
[ 0, 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, 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, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
[ "easy", "nonn", "mult" ]
A167625
[ 1, 1, 0, 1, 1, 1, 1, 0, 2, 0, 1, 1, 3, 2, 1, 1, 0, 5, 0, 3, 0, 1, 1, 7, 8, 7, 3, 1, 1, 0, 11, 0, 20, 0, 4, 0, 1, 1, 15, 31, 56, 32, 13, 4, 1, 1, 0, 22, 0, 187, 0, 66, 0, 5, 0, 1, 1, 30, 140, 654, 727, 384, 101, 22, 5, 1, 1, 0, 42, 0, 2705, 0, 3369, 0, 181, 0, 6, 0, 1, 1, 56, 722, 12587, 42703 ]
[ "nonn", "tabl", "changed" ]
A112259
[ 1, 5, 9, 605, 961, 16245, 284089, 29645, 15046641, 101025125, 73222249, 9908816445, 23755748641, 204034140245, 5031349566489, 1965713970605, 219320727489361, 1965265930868805, 374345220088009, 158335559155140130 ]
[ "nonn", "easy" ]
A128906
[ 0, 0, 1, 2, 6, 9, 11, 13, 16, 25, 21, 33, 29, 31, 40, 49, 54, 57, 61, 62, 63, 74, 78, 83, 87, 97, 96, 102, 97, 107, 115, 126, 131, 133, 145, 140, 147, 157, 160, 169, 174, 177, 170, 183, 193, 194, 205, 211, 222, 217, 227, 230, 227, 242, 251, 256, 265, 263, 267, 275, 274 ]
[ "nonn" ]
A079866
[ 1, 2, 3, 2, 5, 2, 7, 2, 3, 3, 11, 2, 13, 3, 3, 2, 17, 2, 19, 2, 4, 4, 23, 2, 5, 5, 3, 3, 29, 3, 31, 2, 5, 5, 5, 2, 37, 6, 6, 2, 41, 3, 43, 3, 3, 6, 47, 2, 7, 3, 7, 3, 53, 2, 7, 2, 7, 7, 59, 2, 61, 7, 3, 2, 8, 4, 67, 4, 8, 4, 71, 2, 73, 8, 4, 4, 8, 4, 79, 2, 3, 9, 83, 3, 9, 9, 9, 3, 89, 3, 9, 4, 9, 9, 9, 2 ]
[ "nonn" ]
A189301
[ 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1 ]
[ "nonn" ]
A378438
[ 1, -2, -2, 1, -2, 3, -2, 0, 1, 4, -2, -1, -2, 4, 4, 0, -2, -1, -2, -3, 4, 4, -2, -2, 1, 4, 0, -3, -2, -8, -2, 0, 4, 4, 4, -2, -2, 4, 4, 0, -2, -7, -2, -2, -2, 4, -2, 0, 1, -2, 4, -2, -2, 0, 4, 1, 4, 4, -2, -21, -2, 4, -2, 0, 4, -7, -2, -2, 4, -8, -2, -10, -2, 4, -2, -2, 4, -6, -2, 0, 0, 4, -2, -15, 4, 4, 4, -1, -2 ]
[ "sign" ]
A118612
[ 2, 5, 29, 44560482149, 1.355877461004671e+22 ]
[ "frac", "nonn" ]
A073782
[ 9, 6, 19, 48, 89, 190, 391, 784, 1577, 3142, 6219, 12256, 24041, 46974, 91471, 177568, 343753, 663814, 1278979, 2459152, 4719417, 9041470, 17294039, 33030320, 62999145, 120006214, 228327099, 433939904, 823854793, 1562602238 ]
[ "easy", "nonn" ]
A346246
[ 1, -2, -4, -1, -6, 10, -10, -2, -3, 14, -12, 4, -16, 22, 26, -4, -18, 2, -22, 6, 42, 26, -28, 6, -5, 34, -6, 10, -30, -66, -36, -8, 50, 38, 62, 7, -40, 46, 66, 10, -42, -106, -46, 12, 14, 58, -52, 8, -9, 2, 74, 16, -58, -2, 74, 18, 90, 62, -60, -18, -66, 74, 26, -16, 98, -126, -70, 18, 114, -150, -72, 18, -78, 82, 12, 22 ]
[ "sign", "look" ]
A172713
[ 3758757240, 8.610740229284196e+21, 4.275854252318609e+34, 2.9579972716368683e+47, 2.462059619716251e+60 ]
[ "nonn" ]
A278458
[ 1, 2, 2, 9, 15, 8, 64, 156, 144, 52, 625, 2050, 2675, 1730, 472, 7776, 32430, 55000, 50310, 25108, 5504, 117649, 599319, 1258775, 1484245, 1052184, 428036, 78416, 2097152, 12669496, 31902416, 46103680, 42064736, 24421096, 8389552, 1320064, 43046721, 301574340, 888996066, 1524644856, 1698413409, 1269814980, 625219644, 185935104, 25637824 ]
[ "nonn", "tabl" ]
A200576
[ 52, 5202, 388824, 30603332, 2421467558, 190970366840, 15075017283404, 1190087102438968, 93945476108897060, 7416172358628866000, 585443124609564340000, 4.621565523830237e+22, 3.648325917726971e+24 ]
[ "nonn" ]
A179835
[ 0, 0, 1, 0, 2, 2, 2, 0, 0, 3, 3, 6, 3, 0, 0, 1, 7, 4, 8, 3, 0, 0, 7, 4, 6, 6, 2, 2, 0, 0, 6, 8, 7, 12, 0, 2, 1, 0, 6, 1, 2, 4, 8, 15, 15, 0, 1, 0, 0, 0, 6, 0, 0, 2, 1, 1, 0, 0, 6, 0, 0, 0, 19, 7, 0, 0, 17, 5, 29, 3, 15, 15, 5, 1, 5, 20, 20, 4, 7, 2, 21, 2, 21, 4, 3, 5, 4, 27, 3, 0, 0, 5, 28, 2, 0, 0, 0, 21, 0, 30 ]
[ "nonn" ]
A102170
[ 2801, 16148168401, 8.50534611647968e+109 ]
[ "nonn", "hard" ]
A183821
[ 15, 813, 43947, 2377341, 128578815, 6954559893, 376152548283, 20345104031589, 1100412240703119, 59518368554767390, 3219189893127085000, 174117402720326250000, 9.417546276713264e+21, 5.0936998022522635e+23 ]
[ "nonn" ]
A271158
[ 1, 6, 14, 35, 59, 96, 140, 225, 321, 406, 506, 671, 791, 971, 1176, 1496, 1868, 2125, 2433, 2869, 3145, 3493, 3885, 4409, 4937, 5437, 5989, 6677, 7253, 8013, 8861, 10029, 11381, 12313, 13377, 14813, 15573, 16709, 17917, 19197, 20417, 21653, 22897, 24309 ]
[ "nonn", "easy" ]
A264130
[ 976, 53280, 2920000, 160564000, 8830490000, 485643650000, 26708584500000, 1468872605000000, 80782519512500000, 4442737533906250000, 244334008340781240000, 1.3437459939332813e+22, 7.390102214891407e+23 ]
[ "nonn" ]
A345774
[ 131, 159, 166, 173, 185, 192, 211, 236, 243, 257, 264, 269, 274, 276, 288, 290, 292, 295, 299, 300, 302, 307, 309, 311, 314, 320, 321, 325, 332, 333, 337, 339, 340, 344, 348, 351, 353, 355, 358, 359, 360, 363, 372, 384, 385, 386, 388, 389, 393, 395, 398, 403 ]
[ "nonn" ]
A325926
[ 0, 0, 0, 0, 0, 2, 8, 26, 76, 212, 568, 1504, 3968, 10526, 28192, 76398, 209268, 578396, 1609376, 4499336, 12620080, 35482718, 99958776, 282107702, 797637908, 2259545652, 6413273704, 18238099464, 51963195440, 148315593178, 424034498656, 1214186436154 ]
[ "nonn" ]
A212940
[ 1, 1016501, 10058484751, 52311221188001, 212180664326328740, 764898125476357600000, 2.592491557886605e+24, 8.492622463881131e+27, 2.7285563319283686e+31 ]
[ "nonn" ]
A121978
[ 1, 11, 12, 14, 20, 27, 29, 30, 40, 65, 71, 85, 87, 89, 97, 104, 115, 147, 155, 175, 181, 189, 194, 244, 263, 264, 285, 286, 291, 303, 354, 360, 370, 376, 403, 407, 417, 423, 429, 433, 448, 479, 492, 493, 520, 570, 582, 588, 596, 617, 627, 629, 644, 654, 661 ]
[ "nonn", "easy" ]
A139574
[ 4398046511104, 109418989131512370000, 2.2737367544323207e+29, 3.1197348228454238e+35, 5.47636992374929e+43, 6.104088152628582e+46 ]
[ "nonn", "easy" ]
A285157
[ 0, 950, 42176, 2446130, 133021570, 7586120602, 440991447842, 26071592935186, 1558862253694926, 93999167152474660, 5705081093219096000, 348057953640436000000, 2.132473452056243e+22, 1.3111538584628979e+24 ]
[ "nonn" ]
A222301
[ 1, 8, 4, 2, 4, 8, 16, 8, 8, 4, 8, 8, 8, 2, 16, 16, 8, 16, 8, 8, 4, 16, 4, 8, 8, 8, 16, 8, 8, 16, 16, 16, 16, 2, 24, 8, 8, 8, 8, 16, 8, 8, 16, 16, 16, 24, 4, 8, 8, 16, 8, 16, 16, 8, 4, 16, 16, 16, 8, 16, 8, 8, 16, 24, 16, 8, 16, 8, 8, 2, 16, 16, 16, 16, 8, 8, 16, 16, 8, 8, 12, 16, 16, 16, 16, 8, 24, 8, 16, 16, 16, 16, 8 ]
[ "nonn" ]
A106750
[ 2, 1, 12, 121, 12112, 12112121, 1211212112112, 121121211211212110000, 1.2112121121121212e+33, 1.2112121121121212e+54 ]
[ "nonn" ]
A062539
[ 2, 6, 2, 2, 0, 5, 7, 5, 5, 4, 2, 9, 2, 1, 1, 9, 8, 1, 0, 4, 6, 4, 8, 3, 9, 5, 8, 9, 8, 9, 1, 1, 1, 9, 4, 1, 3, 6, 8, 2, 7, 5, 4, 9, 5, 1, 4, 3, 1, 6, 2, 3, 1, 6, 2, 8, 1, 6, 8, 2, 1, 7, 0, 3, 8, 0, 0, 7, 9, 0, 5, 8, 7, 0, 7, 0, 4, 1, 4, 2, 5, 0, 2, 3, 0, 2, 9, 5, 5, 3, 2, 9, 6, 1, 4, 2, 9, 0, 9, 3, 4, 4, 6, 1, 3 ]
[ "nonn", "cons", "easy" ]
A223654
[ 5, 25, 43, 229, 799, 3237, 16975, 58813, 262975, 1273157, 6142655, 26877117, 132748947, 716258257, 3072240791, 15826485913, 73962438259, 366204124645, 1830090585655, 8942164068501, 44436414147403, 225094702418657 ]
[ "nonn" ]
A051284
[ 3, 6, 11, 23, 44, 92, 178, 370, 719, 1487, 2897, 5969, 11651, 22223, 45083, 89516, 181385, 353683, 722589, 1423078, 2903564, 5696576, 11635316, 22866150, 46704206, 91835554, 187298550 ]
[ "nonn", "more" ]
A343954
[ 4, 5, 4, 4, 5, 10, 4, 4, 5, 12, 15, 6, 10, 6, 8, 10, 16, 4, 4, 5, 10, 16, 20, 25, 30, 4, 8, 8, 8, 10, 10, 15, 15, 20, 8, 8, 8, 10, 10, 15, 15, 20, 20, 20, 24, 30, 35, 40, 6, 10, 14, 4, 8, 4, 8, 8, 12, 5, 10, 10, 15, 10, 5, 7, 8, 12, 16, 25, 30, 30, 35, 20, 20, 20, 20, 15, 15, 15, 15, 10, 10, 10, 5, 12, 24, 12, 16, 16, 18, 20, 8, 13 ]
[ "nonn", "fini", "full" ]
A305720
[ 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 4, 3, 4, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 16, 1, 2, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 8, 1, 4, 5, 4, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 9, 64, 1, 6, 1, 64, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 4, 1, 8, 7, 8 ]
[ "nonn", "tabl", "mult" ]
A057636
[ 19, 139, 3089, 18839, 123229, 2134519, 12130109, 23884639, 363289219, 9568590299, 24037796539, 130426565719, 405033487139, 3553144754209, 4010803176619, 71894236537009, 71894236537009, 1167114189375049, 1167114189375049, 1167114189375049 ]
[ "nonn", "changed" ]
A281240
[ 0, 144, 480, 816, 1344, 3024, 4896, 7920, 17664, 28560, 46176, 102960, 166464, 269136, 600096, 970224, 1568640, 3497616, 5654880, 9142704, 20385600, 32959056, 53287584, 118815984, 192099456, 310582800, 692510304, 1119637680, 1810209216, 4036245840 ]
[ "nonn", "easy" ]
A012886
[ 1, 2, 3, 8, 30, 121, 493, 2011, 8204, 33469, 136540, 557028, 2272449, 9270673, 37820597, 154292742, 629451995, 2567909604, 10476032782, 42737977489, 174353665921, 711292452431, 2901785575960, 11838111735997 ]
[ "nonn", "easy" ]
A380119
[ 1, 2, 2, 10, 16, 6, 70, 140, 90, 20, 588, 1344, 1134, 448, 70, 5544, 13860, 13860, 7392, 2100, 252, 56628, 151008, 169884, 109824, 42900, 9504, 924, 613470, 1717716, 2108106, 1561560, 750750, 231660, 42042, 3432, 6952660, 20225920, 26546520, 21781760, 12155000, 4667520, 1191190, 183040, 12870 ]
[ "nonn", "tabl", "walk" ]
A354539
[ 1, 1, 1, 2, 5, 8, 18, 31, 71, 126, 290, 527, 1218, 2253, 5223, 9796, 22763, 43170, 100502, 192347, 448476, 864887, 2019121, 3919162, 9159252, 17877619, 41819003, 82021628, 192015633 ]
[ "nonn" ]
A186798
[ 512, 3984, 31204, 244558, 1916364, 15016660, 117671951, 922087441, 7225552800, 56620029719, 443679243969, 3476707292900, 27243766224922, 213484408044033, 1672881498829333, 13108837946186218, 102721939611532510 ]
[ "nonn" ]
A135170
[ 19, 29, 31, 41, 43, 53, 67, 71, 79, 89, 101, 109, 131, 149, 151, 173, 197, 199, 233, 239, 241, 251, 269, 271, 283, 307, 311, 317, 331, 337, 349, 367, 401, 419, 439, 449, 461, 487, 491, 499, 509, 521, 593, 599, 617, 641, 647, 683, 691, 727, 739, 751, 769, 809 ]
[ "nonn" ]