id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A226978
[ 1, 2, 2, 4, 4, 12, 8, 44, 32, 228, 148, 1632, 912, 16004, 8420, 213680, 101508, 3933380, 1691008, 98949060, 38742844, 3413919788, 1213540776, 161410887252, 52106993880 ]
[ "nonn", "more" ]
A383456
[ 3, 16, 70, 288, 1155, 4576, 18018, 70720, 277134, 1085280, 4249388, 16640960, 65189475, 255487680, 1001800650, 3930284160, 15427730010, 60591880800, 238098549780, 936100651200, 3682173186510, 14490838080576, 57053452670100, 224729967000448, 885568808835900, 3491063797713856, 13767643081368792, 54315062063687040, 214354554086311330 ]
[ "nonn", "easy" ]
A091567
[ 3, 5, 7, 11, 17, 29, 31, 47, 61, 67, 71, 97, 101, 127, 131, 139, 149, 181, 197, 241, 269, 307, 331, 359, 379, 397, 409, 419, 421, 449, 457, 479, 487, 491, 599, 607, 617, 619, 641, 647, 677, 709, 751, 787, 839, 857, 907, 947, 967, 977, 997, 1051, 1061, 1091 ]
[ "nonn" ]
A011428
[ 1, 3, 9, 4, 9, 5, 0, 7, 9, 3, 9, 6, 2, 4, 2, 0, 9, 7, 9, 3, 6, 5, 9, 2, 8, 7, 1, 8, 8, 6, 1, 8, 3, 8, 9, 6, 5, 5, 5, 3, 3, 8, 6, 4, 6, 5, 7, 9, 3, 3, 6, 6, 7, 3, 6, 0, 3, 8, 2, 9, 7, 4, 1, 5, 3, 9, 2, 5, 1, 3, 0, 3, 9, 9, 1, 4, 9, 2, 3, 1, 5, 3, 2, 9, 2, 3, 6, 7, 1, 4, 8, 7, 4, 2, 0, 3, 4, 8, 3 ]
[ "nonn", "cons", "easy" ]
A179767
[ 3, 19, 7, 179, 1447, 32059, 55171, 17231, 32611, 644823367, 8870650619, 10808693851, 26813406071 ]
[ "nonn", "more", "hard" ]
A005558
[ 1, 1, 3, 6, 20, 50, 175, 490, 1764, 5292, 19404, 60984, 226512, 736164, 2760615, 9202050, 34763300, 118195220, 449141836, 1551580888, 5924217936, 20734762776, 79483257308, 281248448936, 1081724803600, 3863302870000, 14901311070000, 53644719852000 ]
[ "nonn", "walk", "changed" ]
A216950
[ 0, 1, 1, 0, 1, 1, 2, 4, 4, 8, 14, 11, 18, 30, 26, 24, 40, 35, 58, 69, 48, 84, 158, 67, 139, 287, 215, 242, 490, 323, 624, 919, 516, 1072, 2150, 911, 1891, 3930 ]
[ "nonn", "more" ]
A167398
[ 0, 89, 17711, 3524578, 701408733, 139583862445, 27777890035288, 5527939700884757, 1100087778366101900, 218922995834555170000, 4.356677625885484e+22, 8.670007398507949e+24 ]
[ "nonn" ]
A135831
[ 0, 0, 0, 4, 10, 31, 175 ]
[ "nonn" ]
A031474
[ 4, 9, 14, 19, 21, 22, 23, 34, 39, 44, 46, 47, 48, 59, 64, 69, 71, 72, 73, 84, 89, 94, 96, 97, 98, 104, 106, 107, 108, 111, 112, 113, 116, 117, 118, 120, 149, 159, 164, 169, 171, 172, 173, 184, 189, 194, 196, 197, 198, 209, 214, 219 ]
[ "nonn", "base" ]
A330173
[ 4, 9, 15, 19, 25, 30, 34, 40, 45, 51, 55, 60, 66, 70, 76, 81, 87, 91, 96, 102, 106, 112, 117, 121, 127, 132, 138, 142, 148, 153, 157, 163, 168, 174, 178, 183, 189, 193, 199, 204, 208, 214, 219, 225, 229, 235, 240, 244, 250, 255, 261, 265, 270, 276, 280, 286 ]
[ "nonn", "easy" ]
A125299
[ 0, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70 ]
[ "nonn", "word" ]
A178049
[ 2, 1, 7, 6, 7, 5, 3, 6, 8, 4, 2, 2, 1, 5, 4, 7, 3, 3, 6, 8, 2, 2, 2, 1, 5, 4, 7, 3, 3, 6, 2, 2, 2, 2, 1, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 2, 2, 2, 2, 2, 2, 2 ]
[ "nonn", "base" ]
A182471
[ 0, 1, 2, 2, 3, 1, 4, 2, 2, 2, 6, 2, 7, 2, 2, 3, 9, 2, 10, 2, 3, 3, 12, 2, 3, 4, 3, 3, 15, 2, 16, 3, 4, 5, 3, 2, 19, 5, 4, 2, 21, 2, 22, 4, 2, 6, 24, 2, 4, 2, 5, 4, 27, 2, 4, 3, 6, 8, 30, 2, 31, 8, 3, 4, 5, 3, 34, 5, 7, 2, 36, 2, 37, 10, 2, 6, 5, 3, 40, 3, 3 ]
[ "nonn" ]
A089346
[ 11, 31, 71, 331, 991, 3331, 33331, 99991, 333331, 3333331, 9999991, 33333331, 555555555551, 5555555555551, 7777777777771, 333333333333333300, 1111111111111111200, 77777777777777770000, 1.1111111111111111e+22 ]
[ "base", "nonn" ]
A113522
[ 1, 3, 7, 9, 11, 13, 19, 21, 27, 33, 37, 39, 57, 63, 77, 81, 91, 99, 111, 117, 133, 143, 171, 189, 209, 231, 247, 259, 273, 297, 333, 351, 399, 407, 429, 481, 513, 567, 627, 693, 703, 741, 777, 819, 891, 999, 1001, 1053, 1197, 1221, 1287, 1443, 1463, 1539, 1729 ]
[ "nonn", "fini", "full", "easy" ]
A215533
[ 1, 2, 4, 10, 20, 100, 110, 152, 220, 242, 736, 790, 800, 916, 1010, 1078, 1106, 1232, 1528, 1636, 1834, 2284, 2330, 2392, 2600, 3100, 3562, 3904, 4000, 4066, 4228, 4444, 4552, 5056, 6082, 6208, 6226, 7810, 8170, 8530, 9520 ]
[ "nonn", "base" ]
A328334
[ 1, 0, 4, 2, -2, 32, 10, -34, 256, 26, 1024, 590, -278, 8192, 3262, -6598, 65536, 12974, 262144, 169994, -14306, 2097152, 1005658, -1177330, 16777216, 4856618, -18984578, 134217728, 10155130, 536870912, 298900846, -177039286, 4294967296, 1616365790, -3740837222 ]
[ "sign" ]
A321182
[ 15, 35, 45, 95, 119, 143, 209, 287, 319, 323, 377, 527, 559, 693, 779, 899, 923, 989, 1007, 1189, 1199, 1343, 1349, 1763, 1919, 2159, 2507, 2759, 2911, 3239, 3599, 3827, 4031, 4607, 5183, 5207, 5249, 5459, 5543, 6439, 6811, 6887, 7067, 7279, 7739, 8159, 8639, 9179 ]
[ "nonn", "easy" ]
A191823
[ 1, 4, 12, 34, 90, 236, 612, 1580, 4060, 10404, 26590, 67820, 172654, 438842, 1113808, 2823322, 7148356, 18080002, 45685138, 115337852, 290950252, 733403312, 1847428300, 4650655654, 11700417780, 29420236400, 73937334336, 185724046180 ]
[ "nonn", "walk" ]
A109525
[ 0, 2, 2, 4, 4, 9, 16, 31, 56, 109, 209, 403, 773, 1491, 2873, 5538, 10671, 20570, 39649, 76426, 147312, 283954, 547338, 1055028, 2033628, 3919945, 7555936, 14564535, 28074040, 54114453, 104308961, 201061987, 387559437, 747044835, 1439975217 ]
[ "nonn", "easy" ]
A302961
[ 8, 105, 786, 6206, 49521, 395493, 3157171, 25208524, 201291251, 1607313882, 12834468946, 102483891605, 818339663167, 6534489434899, 52178280478900, 416646642993447, 3326948061363744, 26565877137213190, 212130102108362940 ]
[ "nonn" ]
A235158
[ 102359, 102367, 102397, 102437, 102497, 102539, 102547, 102563, 102587, 102593, 102643, 102647, 102653, 102673, 102679, 102763, 102769, 102793, 102859, 102953, 102967, 102983, 103289, 103457, 103529, 103549, 103567, 103657, 103687, 103769, 103867, 103967 ]
[ "nonn", "base" ]
A213601
[ 1418575498567, 27899359257997, 34460918582317, 76075560855367, 186460616596327, 218021188549237, 234280497145537, 282854319391717, 345120905374087, 346117552180627, 604439135284057, 727417501795057, 1041814617748747, 1090754719898917, 1539765965257747 ]
[ "nonn" ]
A223588
[ 16, 18, 44, 56, 212, 316, 1788, 2878, 18844, 32116, 221652, 389110, 2759924, 4941976, 35665572, 64789396, 473517820, 869692952, 6418702132, 11892204000, 88460921156, 165061640176, 1235762853852, 2319452444592, 17458919011636 ]
[ "nonn" ]
A043694
[ 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 25, 30, 32, 33, 34, 37, 43, 49, 50, 56, 60, 61, 63, 64, 68, 74, 75, 81, 87, 90, 91, 92, 94, 99, 100, 106, 112, 118, 120, 121, 122, 123, 125, 130, 132, 133, 134, 135, 136, 138, 139 ]
[ "nonn", "base" ]
A001733
[ 7, 7, 7, 10, 11, 12, 13, 21, 111, 1111111 ]
[ "fini", "nonn", "base", "full" ]
A024387
[ 20, 319, 1850, 6962, 20344, 50198, 109666, 218483, 404885, 707740, 1178937, 1885998, 2914945, 4373393, 6393898, 9137529, 12797693, 17604194, 23827533, 31783445, 41837686, 54411045, 69984609, 89105263, 112391425, 140539035 ]
[ "nonn" ]
A265757
[ 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1 ]
[ "nonn" ]
A172255
[ 341, 902, 1547, 2652, 4039, 5768, 7673, 9720, 12185, 14886, 17707, 20984, 25017, 29386, 33757, 38438, 43899, 50500, 58457, 66778, 75259, 84170, 94431, 105016, 116321, 129122, 142863, 156610, 170591, 185082, 200791, 216632, 233337, 252042 ]
[ "easy", "nonn" ]
A153170
[ 2, 4, 6, 8, 10, 11, 12, 14, 16, 18, 20, 21, 22, 24, 25, 26, 28, 30, 31, 32, 34, 36, 38, 39, 40, 41, 42, 44, 46, 47, 48, 50, 51, 52, 53, 54, 56, 58, 60, 61, 62, 64, 66, 67, 68, 69, 70, 71, 72, 73, 74, 76, 78, 80, 81, 82, 84, 86, 88, 90, 91, 92, 94, 95, 96, 98, 99, 100, 101, 102 ]
[ "nonn", "easy" ]
A266823
[ 1, 0, 0, 1, 86, 4701, 378116, 41728537, 5954780104, 1062483996748, 231414064262143 ]
[ "nonn" ]
A206568
[ 1, 1, 1, 5, 4, 3, 25, 23, 22, 149, 130, 110, 785, 693, 623, 4389, 3880, 3397, 23977, 21115, 18684, 131893, 116502, 102680, 724705, 638985, 563949, 3980357, 3512812, 3098935, 21873593, 19295871, 17024690 ]
[ "nonn", "easy" ]
A379937
[ 1, 0, 2, 4, 48, 328, 4240, 52092, 842240, 14598352, 294741504, 6501719860, 159434125312, 4248764847000, 123112522876928, 3840463241458732, 128576024097914880, 4594095412384753000, 174592522399006720000, 7.030376888543625e+21, 2.990622782529222e+23 ]
[ "nonn" ]
A260425
[ 1, 2, 3, 4, 6, 8, 5, 9, 12, 15, 7, 10, 13, 16, 21, 26, 14, 18, 19, 22, 27, 34, 40, 24, 11, 30, 32, 35, 42, 51, 23, 60, 38, 20, 46, 49, 31, 52, 63, 76, 43, 36, 92, 57, 33, 68, 17, 74, 48, 78, 95, 114, 64, 54, 25, 135, 86, 50, 37, 102, 47, 28, 111, 72, 118, 140, 67, 165, 96, 82, 39, 195, 79, 128, 75, 56, 150, 70, 44 ]
[ "nonn" ]
A114744
[ 1, 2, 3, 5, 4, 6, 10, 8, 12, 20, 16, 24, 40, 32, 48, 80, 64, 96, 160, 128, 192, 320, 256, 384, 640, 512, 768, 1280, 1024, 1536, 2560, 2048, 3072, 5120, 4096, 6144, 10240, 8192, 12288, 20480, 16384, 24576, 40960, 32768, 49152, 81920, 65536, 98304, 163840, 131072 ]
[ "nonn" ]
A101476
[ 1, 3, 14, 64, 287, 1265, 5500, 23660, 100931, 427669, 1802170, 7559473, 31586889, 131548937, 546297862, 2263042926, 9354234285, 38590884287, 158932839678, 653540335951, 2683657672278, 11006131763414, 45086288225520 ]
[ "nonn" ]
A364610
[ 1266, 1626, 2806, 3706, 4731, 6126, 7426, 7701, 9766, 10726, 13506, 15801, 18706, 19581, 25251, 26266, 26781, 31641, 35106, 36906, 40006, 50766, 52926, 56626, 57381, 62806, 69306, 71826, 74391, 76126, 85101, 90726, 93606, 95551, 96531, 99501, 106606, 108681, 109726, 117181, 121551, 123766 ]
[ "nonn" ]
A032369
[ 1, 2, 35, 71680, 2342475135, 15348366279966720, 2.4927939231028737e+24, 1.1717750210212715e+35, 1.8673355531207384e+47, 1.1308919743910808e+62 ]
[ "nonn" ]
A328122
[ 1, 3, 36, 723, 20280, 730755, 32171580, 1673573895, 100442870640, 6831585584775, 519288366989700, 43626178967384470, 4014060030471090700, 401443860155706640000, 4.335941412608961e+22, 5.030039291029886e+24, 6.237623322063157e+26, 8.234096892318453e+28, 1.152827347869718e+31 ]
[ "nonn" ]
A085596
[ 6, 6, 15, 12, 9, 12, 42, 30, 93, 24, 63, 18, 510, 24, 255, 84, 513, 60, 1170, 186, 6141, 48, 3075, 126, 3066, 36, 9831, 1020 ]
[ "nonn" ]
A235937
[ 0, 0, 0, 0, 1, 2, 11, 62, 408, 3056, 25821, 242802, 2517303, 28540102, 351383192, 4669815008, 66640974977, 1016522211474, 16507095990251, 284343231536742, 5178919228252440 ]
[ "nonn" ]
A348285
[ 2, 1, 1, 3, 2, 1, 1, 3, 1, 5, 2, 1, 1, 3, 1, 5, 2, 1, 1, 3, 1, 5, 2, 1, 3, 3, 1, 5, 2, 1, 1, 3, 1, 5, 1, 4, 2, 1, 7, 3, 3, 1, 1, 7, 4, 9, 4, 1, 5, 1, 10, 5, 3, 1, 3, 9, 2, 1, 1, 3, 2, 1, 3, 3, 13, 2, 5, 2, 5, 1, 1, 4, 2, 1, 6, 3, 33, 2, 5, 1, 5, 4, 3, 1, 4, 8, 4, 1, 1, 7, 1, 5, 10, 16, 3, 1 ]
[ "nonn" ]
A126350
[ 1, 1, 2, 1, 5, 5, 1, 9, 22, 15, 1, 14, 61, 99, 52, 1, 20, 135, 385, 471, 203, 1, 27, 260, 1140, 2416, 2386, 877, 1, 35, 455, 2835, 9156, 15470, 12867, 4140, 1, 44, 742, 6230, 28441, 72590, 102215, 73681, 21147 ]
[ "nonn", "tabl" ]
A353402
[ 0, 1, 10, 21, 26, 43, 53, 58, 107, 117, 174, 186, 292, 314, 346, 348, 349, 373, 430, 442, 570, 585, 586, 629, 676, 693, 696, 697, 698, 699, 804, 826, 858, 860, 861, 885, 954, 1082, 1141, 1173, 1210, 1338, 1353, 1387, 1392, 1393, 1394, 1396, 1397, 1398, 1466 ]
[ "nonn" ]
A311396
[ 1, 4, 8, 12, 17, 19, 21, 26, 29, 37, 41, 44, 51, 51, 55, 58, 62, 66, 72, 79, 78, 86, 88, 89, 94, 99, 101, 114, 113, 114, 123, 120, 126, 127, 136, 140, 149, 153, 150, 159, 158, 158, 164, 172, 173, 190, 185, 189, 197, 191 ]
[ "nonn" ]
A388057
[ 1, 2, 3, 4, 5, 9, 7, 8, 6, 10, 13, 12, 11, 22, 15, 16, 17, 33, 25, 20, 21, 14, 29, 24, 19, 26, 27, 28, 23, 45, 31, 64, 18, 46, 49, 36, 41, 58, 57, 40, 37, 42, 53, 76, 30, 34, 61, 96, 35, 70, 51, 52, 43, 102, 59, 56, 39, 38, 55, 204, 47, 74, 63, 32, 65, 129, 97 ]
[ "nonn", "base" ]
A372916
[ 0, 2, 3, 4, 5, 6, 8, 9, 10, 12, 14, 15, 16, 18, 21, 24, 27, 28, 30, 33, 36, 42, 48, 54, 60, 63, 66, 72, 84, 90, 96, 105, 108, 120, 126, 132, 144, 156, 162, 168, 180, 192, 198, 210, 216, 228, 234, 240, 252, 276, 288, 306, 312, 324, 336, 360, 378, 396, 420, 432, 456 ]
[ "nonn" ]
A049667
[ 0, 1, 29, 842, 24447, 709805, 20608792, 598364773, 17373187209, 504420793834, 14645576208395, 425226130837289, 12346203370489776, 358465123875040800, 10407834795746673000, 302185674200528500000, 8.773792386611074e+21 ]
[ "nonn", "easy" ]
A094784
[ 2, 3, 5, 6, 7, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 26, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 82 ]
[ "nonn", "easy" ]
A251068
[ 14180, 379440, 6182747, 71431719, 641508138, 4755605792, 30334449677, 171552528763, 879593013286, 4159202993302, 18381824623755, 76744270826567, 305302958082338, 1165526725330804, 4295151207693497, 15354987635816372 ]
[ "nonn" ]
A085987
[ 60, 84, 90, 126, 132, 140, 150, 156, 198, 204, 220, 228, 234, 260, 276, 294, 306, 308, 315, 340, 342, 348, 350, 364, 372, 380, 414, 444, 460, 476, 490, 492, 495, 516, 522, 525, 532, 550, 558, 564, 572, 580, 585, 620, 636, 644, 650, 666, 693, 708, 726 ]
[ "nonn" ]
A094480
[ 2, 3, 5, 11, 17, 29, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 83, 89, 101, 107, 113, 127, 131, 137, 149, 151, 157, 163, 173, 179, 181, 191, 197, 199, 211, 223, 227, 229, 233, 241, 251, 257, 269, 271, 277, 281, 283, 307, 311, 317, 337, 347, 349, 353, 359, 373, 389 ]
[ "easy", "nonn" ]
A327782
[ 1, 2, 3, 4, 5, 7, 9, 11, 13, 17, 19, 23, 25, 29, 31, 35, 37, 41, 43, 47, 49, 53, 59, 61, 67, 71, 73, 77, 79, 83, 89, 97, 101, 103, 107, 109, 113, 121, 127, 131, 137, 139, 143, 149, 151, 157, 163, 167, 169, 173, 179, 181, 187, 191, 193, 197, 199, 209, 211, 221 ]
[ "nonn" ]
A027293
[ 1, 1, 1, 2, 1, 1, 3, 2, 1, 1, 5, 3, 2, 1, 1, 7, 5, 3, 2, 1, 1, 11, 7, 5, 3, 2, 1, 1, 15, 11, 7, 5, 3, 2, 1, 1, 22, 15, 11, 7, 5, 3, 2, 1, 1, 30, 22, 15, 11, 7, 5, 3, 2, 1, 1, 42, 30, 22, 15, 11, 7, 5, 3, 2, 1, 1, 56, 42, 30, 22, 15, 11, 7, 5, 3, 2, 1, 1, 77 ]
[ "nonn", "tabl" ]
A156327
[ 1, 2, 14, 194, 4280, 134232, 5587408, 294882464, 19102334112, 1482726089600, 135370060595264, 14325189014356992, 1736329123715436500, 238698935851482550000, 3.691183066481442e+22, 6.375425555384678e+24, 1.2224239079170658e+27, 2.5880278617419032e+29 ]
[ "nonn" ]
A229894
[ 1, -1, -1, 0, 0, 1, 0, 1, 0, 0, 0, 0, -1, 0, 0, -1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 1, -1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, -1, 0, 0, -1, 0, 0, 0, 0, 0, -1, 1, 0, 0, 0, 1, 0, -1, 0, 0, 0, 0, 0 ]
[ "sign" ]
A290358
[ 1, 1, 9, 45, 285, 1575, 9237, 52221, 297633, 1676364, 9425128, 52688379, 293582296, 1629482947, 9015732880, 49727160669, 273504111761, 1500271605182, 8209029290412, 44811239964075, 244069307558722, 1326536980923855, 7195340066129605, 38953817605037256 ]
[ "nonn" ]
A140604
[ 1, 4, 55, 6, 7, 8, 12, 2236, 11, 15, 14, 20, 21, 17, 274, 35, 22, 44, 36, 82, 73, 41, 29, 28, 26, 115, 85, 98, 2054, 31, 46, 502, 40, 39, 79, 3248, 45, 38, 128, 64, 511, 80, 183, 83, 76, 47, 127, 176, 52, 70, 190, 57, 65, 425, 63, 56, 95, 59, 10327, 794, 1248, 89, 410, 69 ]
[ "base", "nonn" ]
A096222
[ 1, 3, 9, 30, 100, 360, 1296, 4896, 18496, 71808, 278784, 1098240, 4326400, 17172480, 68161536, 271589376, 1082146816, 4320165888, 17247043584, 68920934400, 275415040000, 1101122764800, 4402342526976, 17605073043456, 70403108110336 ]
[ "nonn" ]
A221515
[ 0, 0, 0, 0, 1, 0, 0, 2, 1, 0, 0, 3, 3, 2, 0, 0, 4, 7, 12, 3, 0, 0, 5, 13, 36, 30, 5, 0, 0, 6, 21, 80, 130, 89, 8, 0, 0, 7, 31, 150, 381, 532, 248, 13, 0, 0, 8, 43, 252, 884, 1970, 2088, 706, 21, 0, 0, 9, 57, 392, 1765, 5513, 9940, 8304, 1995, 34, 0, 0, 10, 73, 576, 3174, 12872, 33860 ]
[ "nonn", "tabl" ]
A184284
[ 3, 6, 6, 11, 27, 11, 24, 130, 130, 24, 51, 855, 2211, 855, 51, 130, 5934, 44368, 44368, 5934, 130, 315, 44487, 956635, 2691711, 956635, 44487, 315, 834, 341802, 21524790, 174342216, 174342216, 21524790, 341802, 834, 2195, 2691675, 498112275 ]
[ "nonn", "tabl" ]
A352236
[ 1, 1, 3, 19, 185, 2353, 36075, 638115, 12683761, 278485217, 6674259667, 173097575603, 4826128088489, 143896870347793, 4568544366818747, 153883892657000260, 5481761893234193000, 205939077652874360000, 8.13863981694201e+21, 3.3756861433129676e+23 ]
[ "nonn" ]
A380713
[ 3, 5, 18521, 19421, 39827, 44621, 49121, 57221, 59627, 65927, 84221, 86627, 129221, 139121, 149627, 153521, 172421, 182927, 207521, 209927, 231821, 238727, 251621, 254927, 264827, 274121, 277427, 289127, 308927, 317321, 319727, 321821, 327827, 329627, 330821 ]
[ "nonn", "base" ]
A045418
[ 3, 7, 11, 13, 17, 31, 41, 53, 59, 67, 73, 83, 97, 101, 109, 137, 139, 151, 157, 167, 179, 181, 193, 199, 223, 227, 241, 251, 263, 269, 277, 283, 293, 307, 311, 347, 349, 353, 367, 389, 409, 419, 431, 433, 461, 479 ]
[ "nonn", "easy" ]
A004512
[ 23, 21, 22, 26, 24, 25, 20, 18, 19, 5, 3, 4, 8, 6, 7, 2, 0, 1, 14, 12, 13, 17, 15, 16, 11, 9, 10, 50, 48, 49, 53, 51, 52, 47, 45, 46, 32, 30, 31, 35, 33, 34, 29, 27, 28, 41, 39, 40, 44, 42, 43, 38, 36, 37, 77, 75, 76, 80, 78, 79, 74, 72, 73, 59, 57, 58, 62, 60 ]
[ "nonn", "base" ]
A051692
[ 2, 4, 38, 16, 170, 72, 446, 58, 512, 282, 178, 148, 758, 856, 836, 1592, 1712, 388, 1906, 2606, 2034, 1918, 656, 5924, 1648, 13082, 652, 1514, 2758, 10922, 5758, 18986, 6764, 10570, 20918, 4936, 8188, 5842, 4094, 30710, 15212, 11482, 57932, 14626, 5624, 36232, 16018, 57874 ]
[ "nonn" ]
A106905
[ 2, 7, 11, 19, 31, 47, 67, 71, 83, 151, 223, 227, 239, 271, 307, 359, 379, 383, 431, 463, 479, 487, 499, 587, 619, 631, 643, 683, 691, 739, 743, 839, 863, 947, 967, 983, 1019, 1051, 1087, 1151, 1163, 1259, 1279, 1307, 1319, 1367, 1399, 1423, 1451, 1471 ]
[ "nonn", "easy" ]
A219023
[ 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 2, 0, 1, 1, 0, 0, 2, 1, 0, 2, 0, 0, 0, 2, 1, 1, 0, 2, 1, 0, 2, 3, 0, 2, 2, 0, 1, 4, 1, 2, 1, 0, 0, 3, 1, 1, 3, 0, 0, 1, 2, 1, 1, 1, 1, 0, 0, 2, 3, 1, 0, 3, 1, 2, 1, 0, 1, 4, 0, 1, 2, 0, 2, 3, 0, 0, 4, 0, 2, 2, 0, 1, 3, 2, 1, 4, 1, 1, 3, 3, 2, 3, 1, 2, 1, 0, 2, 4, 2 ]
[ "nonn" ]
A015672
[ 1, 13, 143, 1287, 9321, 62205, 598455, 7702695, 78423345, 647284365, 9370936575, 174468068775, 2175194446425, 25400498248125, 529759106051175, 11093219396634376, 183808243512518620, 2892889119253258000 ]
[ "nonn" ]
A278325
[ 0, 0, 0, 0, 3, 0, 1, 20, 20, 1, 6, 94, 236, 94, 6, 21, 395, 1678, 1678, 395, 21, 56, 1492, 9714, 19854, 9714, 1492, 56, 126, 4991, 51229, 186987, 186987, 51229, 4991, 126, 252, 14848, 251892, 1548002, 3058990, 1548002, 251892, 14848, 252, 462, 39832, 1144205 ]
[ "nonn", "tabl" ]
A101059
[ 2, 8, 16, 152, 193, 640, 674, 1460, 26428, 48460, 72734 ]
[ "nonn", "hard", "more" ]
A362070
[ 1, 3, 6, 9, 15, 6, 28, 10, 16, 15, 66, 9, 91, 28, 15, 16, 153, 16, 190, 15, 28, 66, 276, 10, 33, 91, 29, 28, 435, 15, 496, 24, 66, 153, 28, 16, 703, 190, 91, 15, 861, 28, 946, 66, 18, 276, 1128, 16, 54, 33, 153, 91, 1431, 29, 66, 28, 190 ]
[ "nonn" ]
A053163
[ 1, 4, 8, 16, 32, 32, 64, 128, 128, 256, 512, 512, 1024, 1024, 2048, 2048, 4096, 4096, 8192, 8192, 8192, 16384, 16384, 32768, 32768, 65536, 65536, 131072, 131072, 131072, 262144, 262144, 524288, 524288, 524288, 524288, 1048576, 1048576, 1048576, 2097152 ]
[ "nice", "nonn" ]
A293918
[ 1, 39, 796, 14296, 265103, 5317342, 116235247, 2760729582, 70870525294, 1956309944351, 57803029075220, 1820704829013410, 60915564036123610, 2157741151756229600, 80681075613289090000, 3.176017007139111e+21, 1.3130289573689043e+23, 5.688257327967598e+24 ]
[ "nonn" ]
A157878
[ 1, 31, 929, 27839, 834241, 24999391, 749147489, 22449425279, 672733610881, 20159558901151, 604114033423649, 18103261443808320, 542493729280825900, 16256708616980970000, 487158764780148200000, 1.4598506234787467e+22, 4.3746802827884385e+23 ]
[ "nonn", "easy" ]
A217353
[ 1, 2, 3, 4, 8, 50, 58, 71, 112, 1079, 1318, 2252, 3524, 4800, 5560, 6919, 11484, 12184, 41099, 94711, 375460, 449248 ]
[ "nonn", "more" ]
A036886
[ 1, 3, 6, 13, 27, 61, 132, 285, 590, 1190, 2325, 4441, 8288, 15197, 27394, 48679, 85332, 147790, 253016, 428602, 718696, 1193779, 1964996, 3206966, 5191350, 8339001, 13296592, 21053380, 33112242, 51746168, 80372146, 124104612, 190557592 ]
[ "nonn" ]
A371240
[ 1, 3, 7, 6, 8, 15, 14, 24, 31, 18, 36, 24, 31, 42, 90, 42, 44, 84, 57, 93, 98, 54, 68, 126, 144, 72, 140, 96, 80, 186, 133, 186, 224, 156, 252, 132, 160, 204, 266, 150, 152, 300, 158, 240, 378, 192, 306, 240, 252, 312, 212, 378, 324, 264, 230, 432, 450, 234, 432 ]
[ "nonn", "base", "easy" ]
A145642
[ 1, 2, 6, 3, 15, 90, 630, 630, 210, 2100, 23100, 34650, 450450, 6306300, 28028, 7007, 119119, 2144142, 40738698, 101846745, 230945, 5080790, 116858170, 350574510, 70114902, 1822987452, 1822987452, 6380456082, 185033226378, 5550996791340 ]
[ "nonn" ]
A321740
[ 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 2, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 2, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 2, 0 ]
[ "nonn" ]
A024464
[ 1, 3, 7, 10, 22, 29, 54, 65, 115, 132, 224, 258, 431, 480, 792, 889, 1456, 1604, 2614, 2826, 4593, 5006, 8123, 8740, 14167, 15032, 24349, 26006, 42107, 44473, 71990, 76589, 123957, 130833, 211727, 221369, 358219, 376699, 609551, 636042, 1029179, 1080825 ]
[ "nonn" ]
A247059
[ 1, 1, 3, 19, 73, 1281, 3136, 169681, 844929, 22607353, 169431706 ]
[ "nonn", "more" ]
A079146
[ 1, 2, 5, 15, 49, 173, 639, 2469, 9997, 43109, 205092, 1153646, 8523086, 91156133, 1446766659, 32998508358, 1047766596136, 45632564217917, 2711308588849394, 219364550983697100, 24151476334929010000, 3.618445112608409e+21 ]
[ "nonn" ]
A299720
[ 1, 1192, 33804, 2501312, 174287007, 12889348273, 971255866215, 73433529818762, 5581654300729422, 424650044923971840, 32336302707253950000, 2.463144123049505e+21, 1.8765355001766756e+23 ]
[ "nonn" ]
A170371
[ 1, 26, 650, 16250, 406250, 10156250, 253906250, 6347656250, 158691406250, 3967285156250, 99182128906250, 2479553222656250, 61988830566406250, 1549720764160156200, 38743019104003910000, 968575477600097700000 ]
[ "nonn" ]
A111205
[ 14, 18, 21, 24, 33, 39, 50, 51, 54, 55, 57, 60, 63, 68, 95, 102, 105, 108, 111, 112, 114, 117, 119, 120, 138, 145, 150, 155, 160, 165, 171, 174, 177, 180, 183, 186, 189, 192, 195, 203, 248, 258, 261, 264, 267, 270, 273, 275, 276, 279, 282, 285, 286, 288, 290 ]
[ "easy", "nonn" ]
A218421
[ 5, 49, 357, 2725, 20793, 158429, 1207525, 9203377, 70144889, 534620525, 4074695269, 31055936969, 236697756661, 1804029548133, 13749697742817, 104795505274517, 798715588594961, 6087537722095689, 46397135660186376 ]
[ "nonn" ]
A294187
[ 197, 317, 557, 677, 797, 1277, 1637, 1877, 1997, 2237, 2357, 2477, 2837, 2957, 3557, 3677, 3797, 3917, 4157, 4397, 4517, 4637, 4877, 5237, 5477, 5717, 6197, 6317, 6917, 7517, 7757, 7877, 8117, 8237, 8597, 8837, 9437, 9677, 10037 ]
[ "nonn" ]
A288485
[ 1, -19, 91, -179, 126, -1, 344, -1459, 2521, -2394, 1332, -737, 2198, -6536, 11466, -11699, 4914, 485, 6860, -22554, 31304, -25308, 12168, -6625, 15751, -41762, 68131, -61576, 24390, -126, 29792, -93619, 121212, -93366, 43344, -15803, 50654, -130340 ]
[ "sign" ]
A389245
[ 1, 0, 1, 2, 5, 14, 40, 118, 357, 1100, 3441, 10900, 34892, 112696, 366808, 1201942, 3961765, 13126872, 43697395, 146070954, 490127325, 1650206070, 5573390956, 18877202872, 64104934380, 218218591344, 744490926700, 2545212141056, 8718112068552, 29915631822160 ]
[ "nonn" ]
A172591
[ 1, 1172556, 306407299538340, 2.1449538936410782e+24, 1.783947125949065e+35, 1.078585491052025e+47 ]
[ "nonn" ]
A261100
[ 1, 2, 2, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10 ]
[ "nonn" ]
A325447
[ 1, 0, 3, 0, 2, 8, 0, 2, 6, 48, 0, 2, 9, 74, 383, 0, 2, 10, 159, 756, 6196, 0, 2, 13, 276, 2058, 14634, 177083, 0, 2, 14, 505, 4824, 48137, 384942, 9305118 ]
[ "nonn", "tabl", "more" ]
A276775
[ 1, 1, 2, 2, 3, 4, 4, 6, 5, 6, 9, 15, 11, 7, 8, 21, 36, 32, 17, 9, 10, 51, 91, 83, 56, 24, 11, 12, 127, 232, 226, 157, 88, 32, 13, 14, 323, 603, 608, 459, 266, 129, 41, 15, 16, 835, 1585, 1655, 1305, 832, 419, 180, 51, 17, 18, 2188, 4213, 4517, 3726, 2499, 1397, 626, 242, 62, 19, 20 ]
[ "nonn", "tabl" ]
A141325
[ 1, 1, 1, 1, 3, 5, 9, 13, 21, 33, 55, 89, 145, 233, 377, 609, 987, 1597, 2585, 4181, 6765, 10945, 17711, 28657, 46369, 75025, 121393, 196417, 317811, 514229, 832041, 1346269, 2178309, 3524577, 5702887, 9227465, 14930353, 24157817, 39088169 ]
[ "nonn", "easy" ]
A348761
[ 0, 0, 1, -1, 2, -2, -1, 1, 2, -2, -1, 1, 0, 0, 1, -1, 0, 0, 1, -1, 2, -2, -1, 1, 2, -2, -1, 1, 0, 0, 1, -1, -4, 4, 5, -5, 6, -6, -5, 5, 6, -6, -5, 5, -4, 4, 5, -5, 4, -4, -3, 3, -2, 2, 3, -3, -2, 2, 3, -3, 4, -4, -3, 3, -8, 8, 9, -9, 10, -10, -9, 9, 10, -10 ]
[ "sign", "look", "base" ]
A214785
[ 7, 13, 17, 53, 67, 97, 137, 157, 167, 193, 227, 257, 293, 313, 317, 383, 397, 457, 463, 503, 547, 577, 587, 593, 643, 653, 673, 683, 727, 757, 773, 823, 827, 883, 887, 937, 997, 1013, 1063, 1093, 1163, 1213, 1237 ]
[ "nonn" ]
A358556
[ 2, 5, 21, 2, 5, 5, 4, 61, 2, 5, 29, 5, 73, 25, 105, 2, 5, 25, 5, 5, 31, 141, 11, 157, 2, 5, 5, 5, 85, 5, 153, 4, 25, 61, 229, 2, 5, 25, 5, 73, 33, 5, 15, 245, 71, 297, 22, 317, 2, 5, 25, 5, 65, 29, 165, 5, 269, 81, 333, 25, 385, 109, 401, 2, 5, 5, 5, 61, 5, 153, 16, 5, 91, 377, 4, 449, 125, 61, 37, 509, 2 ]
[ "nonn", "tabf" ]
A384867
[ 2, 4, 2, 14, 8, 2, 52, 52, 12, 2, 214, 376, 114, 16, 2, 916, 2998, 1228, 200, 20, 2, 4116, 25256, 14568, 2864, 310, 24, 2, 18996, 222128, 18, 3132, 45140, 5540, 444, 28, 2 ]
[ "nonn", "tabl", "more" ]