id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A052532
[ 1, 0, 0, 1, 2, 1, 2, 5, 7, 8, 14, 24, 34, 49, 79, 123, 182, 276, 429, 655, 990, 1513, 2321, 3537, 5385, 8229, 12574, 19175, 29252, 44670, 68190, 104043, 158790, 242398, 369961, 564604, 861749, 1315318, 2007485, 3063877, 4676340, 71373...
[ "easy", "nonn" ]
A231983
[ 3, 0, 4, 6, 0, 9, 6, 8, 7, 5, 1, 1, 9, 3, 6, 6, 6, 3, 7, 8, 2, 5, 9, 8, 3, 2, 1, 0, 3, 5, 0, 7, 4, 7, 2, 9, 1, 6, 2, 5, 4, 5, 6, 1, 8, 1, 6, 2, 4, 4, 8, 9, 3, 5, 7, 0, 2, 7, 0, 7, 7, 0, 7, 4...
[ "nonn", "cons", "easy" ]
A280054
[ 1, 2, 3, 4, 9, 23, 53, 193, 1012, 11428, 414069, 89236803, 281079668014, 49673575524946260, 3.6903442895949185e+24, 2.3630835306866597e+36, 1.210869542685905e+54 ]
[ "nonn" ]
A251310
[ 10, 25, 61, 149, 365, 894, 2189, 5360, 13125, 32139, 78698, 192706, 471875, 1155470, 2829374, 6928226, 16964995, 41541811, 101722521, 249085705, 609930700, 1493523921, 3657159252, 8955205609, 21928415465, 53695629760, 131483310316 ]
[ "nonn" ]
A197072
[ -1, 1, 5, 15, 25, 49, 97, 181, 433, 819, 1541, 3147, 6271, 12469, 25087, 49455, 99255, 196057, 391815, 781893, 1555935, 3106511, 6191001, 12351963, 24658715, 49173803, 98136735, 195868789, 391110307, 780774507, 1559147549, 3113261723, 6218243597, 124...
[ "sign" ]
A293107
[ 5, -6, 1, 77, -120, 60, -20, 3, 669, -1260, 1050, -700, 315, -84, 10, 4609, -10080, 11760, -11760, 8820, -4704, 1680, -360, 35, 55991, -13860, 207900, -277200, 291060, -232848, 138600, -59400, 17325, -3080, 252, 785633, -2162160, 3963960, -...
[ "sign", "tabf" ]
A287197
[ 1, 3, 1, 12, 1, 60, 1, 252, 1, 1020, 1, 4092, 1, 16380, 1, 65532, 1, 262140, 1, 1048572, 1, 4194300, 1, 16777212, 1, 67108860, 1, 268435452, 1, 1073741820, 1, 4294967292, 1, 17179869180, 1, 68719476732, 1, 274877906940, 1, 1099511627772, ...
[ "nonn", "easy" ]
A361953
[ 1, 0, 1, 0, 1, 1, 0, 1, 3, 1, 0, 1, 8, 6, 1, 0, 1, 20, 30, 9, 1, 0, 1, 55, 145, 66, 12, 1, 0, 1, 163, 745, 465, 111, 15, 1, 0, 1, 556, 4245, 3444, 964, 165, 18, 1, 0, 1, 2222, 27880, 28024, 8618, 1652, 228, 21,...
[ "nonn", "tabl" ]
A117130
[ 0, 0, 0, 1, 7, 37, 197, 1171 ]
[ "nonn", "more" ]
A031487
[ 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21, 22, 25, 26, 27, 28, 29, 30, 33, 34, 35, 36, 37, 38, 41, 42, 43, 44, 45, 46, 49, 50, 51, 52, 53, 54, 56, 71, 73, 74, 75, 76, 77, 78, 81, 82, 83, 84, ...
[ "nonn", "base" ]
A242477
[ 0, 0, 3, 6, 12, 18, 27, 36, 48, 60, 75, 90, 108, 126, 147, 168, 192, 216, 243, 270, 300, 330, 363, 396, 432, 468, 507, 546, 588, 630, 675, 720, 768, 816, 867, 918, 972, 1026, 1083, 1140, 1200, 1260, 1323, 1386, 1452, 1518, 1...
[ "nonn", "easy" ]
A329979
[ 7, 11, 19, 23, 31, 37, 43, 47, 53, 59, 67, 71, 79, 83, 101, 103, 107, 127, 131, 137, 139, 149, 163, 167, 179, 181, 191, 199, 211, 223, 229, 233, 239, 251, 263, 271, 283, 293, 307, 311, 331, 347, 349, 359, 367, 373, 379, 38...
[ "nonn" ]
A147246
[ 1, 1, 1, 1, 5, 21, 67, 345, 1649, 10337, 85161, 930265, 12022615, 198707417, 3901444367 ]
[ "nonn" ]
A330710
[ 1, 2, 4, 8, 9, 16, 18, 32, 36, 41, 53, 64, 69, 72, 82, 106, 107, 111, 128, 138, 141, 143, 144, 163, 164, 169, 189, 212, 214, 217, 219, 222, 231, 247, 256, 263, 276, 281, 282, 286, 287, 288, 299, 326, 328, 331, 338, 349, ...
[ "nonn" ]
A128219
[ 1, 2, 2, 2, 3, 3, 2, 3, 4, 4, 2, 3, 4, 5, 5, 2, 3, 4, 5, 6, 6, 2, 3, 4, 5, 6, 7, 7, 2, 3, 4, 5, 6, 7, 8, 8, 2, 3, 4, 5, 6, 7, 8, 9, 9, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 2, 3, 4, 5, 6, 7, 8, 9, ...
[ "nonn", "tabl" ]
A170679
[ 1, 46, 2070, 93150, 4191750, 188628750, 8488293750, 381973218750, 17188794843750, 773495767968750, 34807309558593750, 1566328930136718800, 70484801856152350000, 3.1718160835268554e+21, 1.4273172375870849e+23 ]
[ "nonn", "easy" ]
A120562
[ 1, 1, 1, 2, 1, 2, 2, 3, 1, 3, 2, 3, 2, 4, 3, 5, 1, 4, 3, 4, 2, 5, 3, 5, 2, 5, 4, 6, 3, 7, 5, 8, 1, 6, 4, 5, 3, 7, 4, 7, 2, 6, 5, 7, 3, 8, 5, 8, 2, 7, 5, 7, 4, 9, 6, 10, 3, 9, 7, 10, 5, 12, 8, ...
[ "easy", "nonn" ]
A188924
[ 2, 8, 0, 5, 8, 8, 3, 7, 0, 1, 4, 7, 5, 7, 7, 8, 7, 1, 5, 0, 9, 8, 0, 8, 8, 8, 0, 9, 5, 6, 9, 3, 0, 4, 9, 6, 2, 8, 4, 2, 7, 5, 1, 3, 0, 9, 9, 9, 0, 9, 4, 3, 4, 7, 7, 6, 4, 5, 0, 9, 8, 7, 1, 0...
[ "nonn", "cons" ]
A088225
[ 2, 6, 7, 8, 13, 17, 18, 19, 24, 28, 29, 30, 35, 39, 40, 41, 46, 50, 51, 52, 57, 61, 62, 63, 68, 72, 73, 74, 79, 83, 84, 85, 90, 94, 95, 96, 101, 105, 106, 107, 112, 116, 117, 118, 123, 127, 128, 129, 134, 138, 139, ...
[ "nonn", "easy" ]
A299666
[ 32, 1841, 40023, 974646, 24665530, 615314145, 15351583824, 384274120067, 9615094296606, 240555736495426, 6019667561802190, 150639005352591650, 3769627665367430700, 94333408395773460000, 2.3606657324532968e+21 ]
[ "nonn" ]
A221541
[ 0, 7, 44, 350, 2658, 20386, 156098, 1195561, 9156379, 70126074, 537074685, 4113296146, 31502516844, 241268447450, 1847803587081, 14151780448318, 108384295414048, 830083220654363, 6357361558503534, 48689149448999140 ]
[ "nonn" ]
A389924
[ 1, 5, 10, 19, 20, 37, 38, 40, 71, 73, 74, 76, 80, 139, 141, 142, 145, 146, 148, 152, 160, 271, 275, 277, 278, 281, 282, 284, 289, 290, 292, 296, 304, 320, 535, 539, 541, 542, 547, 549, 550, 553, 554, 556, 561, 562, 564, 56...
[ "nonn" ]
A232239
[ 3, 5, 269, 16649, 27689, 29129, 82889, 93239, 129629, 274199, 289169, 309479, 336899, 349079, 371339, 374639, 415109, 454709, 463889, 492719, 1051079, 1063919, 1127309, 1198289, 1209779, 1229519, 1268789, 1350959, 1354649, 1355279, 1392539, 1430879, 15...
[ "nonn", "base", "less" ]
A250783
[ 9, 21, 18, 46, 46, 36, 99, 106, 96, 72, 209, 238, 230, 196, 144, 436, 518, 534, 482, 396, 288, 901, 1106, 1194, 1152, 990, 796, 576, 1849, 2326, 2604, 2640, 2426, 2010, 1596, 1152, 3774, 4838, 5568, 5882, 5688, 5028, 4054, 3196, ...
[ "nonn", "tabl" ]
A085674
[ 4, 7, 5, 6, 3, 5, 3, 8, 9, 5, 3, 7, 9, 8, 9, 7, 0, 8, 7, 5, 5, 3, 5, 9, 4, 9, 5, 3, 1, 9, 7, 3, 7, 1, 2, 2, 3, 2, 7, 1, 4, 4, 8, 8, 4, 3, 1, 3, 3, 3, 1, 0, 7, 2, 2, 7, 6, 4, 6, 5, 2, 4, 4, 4...
[ "cons", "nonn" ]
A279296
[ 1, 18, 2195, 57980, 2234121, 62821766, 1877987735, 52129260840, 1462714640951, 40503784352590, 1131481211125461, 31802909031355052, 905596491625548900, 26146644212681105000, 767446589270205000000, 2.2921754812832515e+22, 6.974550042779126e+23 ]
[ "nonn" ]
A202443
[ 338, 574, 1102, 1890, 3122, 4822, 7238, 10394, 14602, 19886, 26622, 34834, 44962, 57030, 71542, 88522, 108538, 131614, 158382, 188866, 223762, 263094, 307622, 357370, 413162, 475022, 543838, 619634, 703362, 795046, 895702, 1005354, 1125082 ]
[ "nonn" ]
A334245
[ 12, 12, 12, 15, 12, 30, 15, 21, 15, 77, 21, 77, 30, 77, 30, 77, 30, 57, 77, 30, 77, 91, 77, 77, 77, 77, 35, 105, 77, 133, 77, 91, 77, 60, 77, 111, 57, 77, 77, 133, 77, 165, 91, 65, 91, 147, 60, 105, 65, 70, 65, 165...
[ "nonn", "look" ]
A382142
[ 24, 102, 486, 2436 ]
[ "nonn", "more" ]
A088759
[ 0, 3, 5, 7, 8, 10, 12, 17, 20, 22, 25, 27, 30, 32, 38, 40, 43, 50, 55, 57, 72, 82, 83, 85, 97, 102, 107, 108, 110, 112, 113, 115, 118, 122, 123, 128, 133, 140, 147, 150, 160, 168, 173, 175, 177, 183, 187, 192, 198, 200...
[ "nonn", "easy" ]
A268345
[ 1, 3, 5, 9, 14, 21, 31, 44, 61, 83, 112, 148, 194, 251, 322, 410, 518, 649, 809, 1002, 1234, 1513, 1846, 2242, 2712, 3268, 3923, 4694, 5598, 6655, 7889, 9326, 10994, 12929, 15167, 17751, 20730, 24157, 28092, 32605, 37771, 43675, 504...
[ "nonn" ]
A106810
[ 5920069, 20310089, 1010700091, 7893380087, 12128930131, 13022010167, 13675550173, 15600330157, 17145660089, 17799110141, 18492020191, 19044820199, 19462050079, 23267690141, 24773660053, 29366490053 ]
[ "base", "nonn" ]
A167263
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 21, 0, 0, 0, 0, 21, 0, 0, 0, 441, 0, 0, 0, 441, 0, 0, 0, 0, 0, 9157, 0, 0, 9157, 0, 0, 0, 0, 0, 0, 0, 214689, ...
[ "nonn", "tabl" ]
A069356
[ 2, 5, 7, 43, 67, 103, 157, 281, 503, 641, 1451, 3061, 4597, 6553, 8179, 10357, 15541, 34981, 78721, 209939, 524269, 1062869, 2097131, 13436909, 25509151, 28311529, 63700969, 113246183, 153054989, 516560633, 573308903, 774840959, 805306339 ]
[ "nonn" ]
A251357
[ 98701641, 686136478104, 4753101689364667, 32965636361618420000, 2.286482899886227e+23, 1.585943776953653e+27, 1.100043631508768e+31, 7.630132080571251e+34 ]
[ "nonn" ]
A364267
[ 0, 1, 2, 5, 9, 24, 55, 169, 454, 1567, 4823, 18422, 63609, 265929, 1014266, 4595861, 19143089, 93286964, 420483103, 2189786125, 10601936382, 58688597511, 303349005967, 1776842374930, 9754696729753, 60223101819493, 349624680839546, 2267363687696309 ]
[ "nonn" ]
A218661
[ 31, 3519, 199489, 12383361, 775176415, 48231228511, 3004025019009, 187110346460865, 11653760352498464, 725837910289490200, 45207782461323580000, 2.8157008199215664e+21, 1.7537184513258798e+23 ]
[ "nonn" ]
A083731
[ 1, 1, 0, 1, 0, 0, 1, 1, -1, 0, 1, 1, 0, -1, 0, 1, 2, 0, -1, -1, 0, 1, 2, 1, -1, -1, -1, 0, 1, 3, 1, 0, -2, -1, -1, 0, 1, 3, 3, -1, -1, -2, -1, -1, 0, 1, 4, 3, 1, -2, -2, -2, -1, -1, 0, 1, 4, 5, 1, -...
[ "sign", "tabl" ]
A221010
[ 84, 2328, 23070, 161322, 951906, 5097426, 25678002, 124125810, 582682098, 2676493554, 12091136754, 53909403378, 237825453810, 1040070008562, 4515386474226, 19482038992626, 83610263027442, 357169749688050, 1519594327768818, 6442039704551154 ]
[ "nonn", "easy", "changed" ]
A257336
[ 3, 8, 11, 14, 25, 22, 21, 26, 33, 34, 45, 44, 59, 48, 67, 58, 69, 68, 79, 66, 89, 84, 97, 90, 103, 98, 113, 106, 115, 108, 127, 128, 133, 132, 145, 138, 151, 144, 161, 150, 169, 162, 175, 176, 183, 178, 189, 188, 195, ...
[ "nonn" ]
A312036
[ 1, 4, 8, 13, 18, 21, 28, 33, 36, 43, 46, 52, 57, 60, 65, 72, 76, 76, 88, 91, 92, 101, 104, 109, 112, 115, 122, 126, 129, 134, 141, 146, 148, 154, 160, 165, 168, 173, 178, 185, 188, 187, 202, 204, 203, 214, 217, 222, 224,...
[ "nonn" ]
A318852
[ 0, 1, 1, 2, 4, 9, 20, 47, 113, 281, 706, 1807, 4671, 12223, 32245, 85777, 229670, 618732, 1675523, 4559000, 12456756, 34166545, 94034740, 259621512, 718846854, 1995610386, 5553500697, 15489256677, 43290763753, 121226491459, 340079258393, 955634312429 ]
[ "nonn" ]
A031136
[ 1, 0, 0, 0, 0, 0, 80, 0, 3063, 7168, 14640, 21504, 38160, 21504, 14640, 7168, 3063, 0, 80, 0, 0, 0, 0, 0, 1 ]
[ "nonn", "fini", "full" ]
A051566
[ 0, 5, 0, 2, 138, 47, 1, 12490 ]
[ "dead" ]
A208736
[ 0, 0, 0, 1, 5, 22, 91, 361, 1392, 5265, 19653, 72694, 267179, 977593, 3565600, 12975457, 47142021, 171075606, 620303547, 2247803785, 8141857808, 29481675889, 106728951109, 386314552438, 1398132674955, 5059626441177, 18308871648576, 66249898660801 ]
[ "nonn", "easy" ]
A309464
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 20, 29, 49, 68, 106, 143, 209, 282, 394, 510, 692, 888, 1165, 1479, 1902, 2376, 3009, 3715, 4630, 5662, 6961, 8430, 10260, 12325, 14842, 17696, 21134, 25012, 29648, 34860, 41022, 47957, 5607...
[ "nonn" ]
A340793
[ 1, 2, 1, 3, -1, 6, -4, 7, -2, 5, -6, 16, -14, 10, 0, 7, -13, 21, -19, 22, -10, 4, -12, 36, -29, 11, -2, 16, -26, 42, -40, 31, -15, 6, -6, 43, -53, 22, -4, 34, -48, 54, -52, 40, -6, -6, -24, 76, -67, 36, -21, 26, ...
[ "sign", "easy" ]
A105268
[ 2, 89, 97, 809, 907, 8009, 8699, 9697, 9887, 81119, 98887, 8000009, 9888887, 81111119, 8111111119, 8666699999, 9888888887, 8000000000009, 9888888888887, 98888888888888880, 81111111111111110000, 800000000000000000000 ]
[ "base", "easy", "nonn" ]
A087666
[ 0, 3, 4, 0, 1, 1, 0, 3, 2, 0, 3, 7, 0, 1, 1, 0, 2, 3, 0, 2, 2, 0, 1, 1, 0, 5, 5, 0, 5, 6, 0, 1, 1, 0, 9, 2, 0, 8, 3, 0, 1, 1, 0, 2, 5, 0, 2, 2, 0, 1, 1, 0, 3, 3, 0, 6, 3, 0, 1, 1, 0, 4, 2, 0...
[ "nonn" ]
A367452
[ 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 3, 0, 1, 1, 1, 0, 1, 1, 0, 3, 0, 1, 0, 1, 0, 1, 1, 1, 0, 0, 1, 1, 3, 0, 1, 3, 0, 0, 1, 1, 3, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 3, 0...
[ "nonn" ]
A374483
[ 0, 1, 3, 6, 7, 8, 10, 13, 15, 19, 20, 22, 24, 27, 30, 32, 34, 36, 39, 41, 45, 46, 50, 52, 55, 61, 67, 68, 70, 71, 74, 79, 82, 86, 87, 90, 94, 98, 103, 105, 106, 108, 111, 117, 121, 126, 134, 138, 144, 146, 149, 151...
[ "nonn" ]
A356241
[ 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 2, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 2, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 2, 0, 0, 1, 0, 1, 2, 0, 0, 1, 1, 0, 1, 0, 0, 2, 0, 0, 1, 0...
[ "nonn" ]
A079109
[ 0, 1, 1, 1, 3, 2, 1, 2, 1, 4, 3, 4, 2, 2, 2, 4, 5, 4, 3, 3, 3, 4, 3, 3, 5, 6, 5, 4, 4, 3, 3, 5, 4, 3, 1, 5, 4, 3, 3, 5, 7, 6, 6, 5, 4, 5, 7, 6, 4, 5, 4, 2, 4, 5, 6, 4, 2, 5, 5, 5, 4, 4, 2, 8...
[ "nonn" ]
A211037
[ 1, 5, 34, 398, 6988, 197328, 8645790, 598407040, 64812874208, 11032788701886, 2945294560303704, 1234174982814619600, 811373195193470800000 ]
[ "nonn" ]
A296758
[ 15, 30, 31, 45, 46, 47, 60, 61, 62, 63, 75, 76, 77, 78, 79, 90, 91, 92, 93, 94, 95, 105, 106, 107, 108, 109, 110, 111, 120, 121, 122, 123, 124, 125, 126, 127, 135, 136, 137, 138, 139, 140, 141, 142, 143, 150, 151, 152, 1...
[ "nonn", "base", "easy" ]
A099344
[ 0, 1, 60, 639, 6278, 62345, 625077, 6249493, 62489514, 624962532, 6250019064, 62499955595 ]
[ "base", "nonn", "more" ]
A306615
[ 0, 0, 0, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 2, 1, 6, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 2, 4, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 3, 2, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 3, 10, 3, ...
[ "nonn" ]
A067054
[ 1, 1, 3, 4, 6, 8, 11, 15, 18, 23, 28, 33, 39, 46, 53, 61, 70, 79, 89, 100, 111, 123, 137, 150, 165, 181, 197, 215, 233, 252, 273, 294, 316, 340, 364, 389, 416, 443, 472, 502, 533, 565, 598, 633, 669, 706, 745, 784, 825, ...
[ "easy", "nonn" ]
A328741
[ 0, 0, 0, 0, 2, 9, 50, 206, 862, 3384, 13250, 50852, 194810, 741884, 2823712, 10735998, 40843370, 155483873, 592614050, 2261585918, 8643288808, 33080772468, 126797503250, 486710415710, 1870851589552, 7201012694120, 27752927349880, 107092389688830, 4137296808383...
[ "nonn" ]
A321700
[ 2, 3, 7, 11, 13, 17, 19, 23, 37, 47, 53, 59, 61, 67, 71, 73, 79, 89, 97, 103, 107, 113, 137, 197, 227, 239, 263, 269, 271, 307, 311, 317, 337, 347, 353, 359, 367, 373, 379, 389, 397, 439, 449, 479, 487, 503, 523, 547, 55...
[ "nonn", "base", "easy" ]
A388910
[ 9, 6, 0, 6, 0, 5, 3, 2, 4, 6, 0, 5, 3, 8, 4, 8, 1, 0, 7, 8, 5, 0, 4, 8, 8, 4, 0, 3, 6, 6, 3, 7, 9, 8, 2, 4, 1, 9, 0, 4, 1, 9, 3, 9, 0, 4, 5, 6, 6, 4, 8, 3, 4, 0, 9, 9, 6, 0, 8, 9, 8, 6, 3, 0...
[ "nonn", "cons" ]
A129227
[ 3, 3, 3, 11, 5, 17, 7, 5, 7, 31, 17, 37, 37, 43, 47, 5, 53, 53, 59, 31, 13, 23, 71, 73, 13, 79, 83, 29, 13, 47, 97, 97, 103, 53, 109, 113, 29, 17, 61, 31, 127, 131, 67, 137, 47, 71, 73, 149, 151, 157, 157, 163, 8...
[ "easy", "nonn" ]
A286350
[ 0, 2, 2, 3, 4, 7, 12, 20, 32, 51, 82, 133, 216, 350, 566, 915, 1480, 2395, 3876, 6272, 10148, 16419, 26566, 42985, 69552, 112538, 182090, 294627, 476716, 771343, 1248060, 2019404, 3267464, 5286867, 8554330, 13841197, 22395528, 36236726, 586...
[ "nonn", "easy" ]
A364626
[ 1, 3, 7, 19, 63, 231, 895, 3615, 15055, 64111, 277791, 1220767, 5427775, 24371199, 110350335, 503289727, 2309992959, 10661634303, 49452179455, 230391918591, 1077644520703, 5058766156543, 23824929459711, 112541456498175, 533063457631231, 2531252417738751 ]
[ "nonn" ]
A079432
[ 4, 8, 9, 16, 20, 12, 28, 32, 15, 25, 44, 18, 52, 49, 21, 64, 68, 24, 76, 35, 27, 88, 92, 30, 40, 104, 33, 56, 116, 36, 124, 128, 39, 136, 50, 42, 148, 152, 45, 55, 164, 48, 172, 121, 51, 184, 188, 54, 77, 65, 57, 1...
[ "nonn" ]
A207299
[ 456043, 521236935, 380160979265, 308913308209090, 189688562729242200 ]
[ "nonn" ]
A057262
[ 1, 3, 9, 27, 81, 87, 243, 729, 1027, 1467, 2187, 2781, 6561, 19683, 35901, 59049, 62613, 63423, 63909, 136503, 137133, 177147, 531441, 925101, 1594323, 2785509, 3680883, 4782969, 5080077, 6409507 ]
[ "nonn" ]
A165568
[ -1, 1, 31, 137, 391, 889, 1751, 3121, 5167, 8081, 12079, 17401, 24311, 33097, 44071, 57569, 73951, 93601, 116927, 144361, 176359, 213401, 255991, 304657, 359951, 422449, 492751, 571481, 659287, 756841, 864839, 984001, 1115071, 1258817, 1416031, 1...
[ "sign", "easy" ]
A039522
[ 35, 134, 179, 278, 299, 311, 335, 347, 359, 371, 383, 395, 407, 419, 420, 421, 423, 424, 425, 426, 427, 428, 429, 430, 467, 566, 611, 710, 755, 854, 899, 998, 1043, 1142, 1187, 1286, 1331, 1430, 1475, 1574, 1586, 1598, 1608, 1609,...
[ "nonn", "base", "easy" ]
A320191
[ 1, 2, 2, 6, 6, 4, 12, 4, 2, 14, 2, 12, 22, 16, 24, 24, 30, 12, 18, 36, 12, 40, 48, 16, 36, 42, 12, 26, 40, 28, 60, 60, 26, 32, 36, 28, 42, 48, 36, 60, 74, 40, 8, 52, 60, 52, 132, 40, 46, 114, 14, 72, 48, 36, ...
[ "nonn" ]
A371505
[ 1, 2, 3, 6, 10, 31, 63, 287, 1099, 8640, 62658, 1546891, 29789119, 2525655957 ]
[ "nonn", "more" ]
A299371
[ 5, 888, 41528, 1736688, 76033854, 3330673422, 145700454710, 6374113851083, 278862313827105, 12199986367791028, 533738776415337860, 23350607182726580000, 1.0215687646892172e+21, 4.469274559789114e+22 ]
[ "nonn" ]
A259524
[ 12, 38, 38, 120, 208, 120, 380, 1122, 1122, 380, 1204, 6100, 10148, 6100, 1204, 3816, 33162, 93028, 93028, 33162, 3816, 12096, 180370, 851604, 1447270, 851604, 180370, 12096, 38344, 981092, 7802386, 22453286, 22453286, 7802386, 981092, 38344 ]
[ "nonn", "tabl" ]
A000758
[ 0, 1, 5, 20, 76, 285, 1066, 3991, 14976, 56353 ]
[ "nonn", "more" ]
A119177
[ 3, 11, 36, 76, 7741188, 21305723, 4471447856, 24343059348, 6673334543723, 23094123478785548 ]
[ "nonn", "base", "more" ]
A131925
[ 1, 5, 3, 5, 7, 5, 9, 7, 9, 7, 9, 11, 9, 11, 9, 13, 11, 13, 11, 13, 11, 13, 15, 13, 15, 13, 15, 13, 17, 15, 17, 15, 17, 15, 17, 15, 17, 19, 17, 19, 17, 19, 17, 19, 17 ]
[ "nonn", "tabl" ]
A030024
[ 1, 0, 0, 100, 770, 3968 ]
[ "nonn", "more" ]
A133526
[ 3123, 17748, 46228, 129124, 257044, 522244, 1200964, 2040964, 3784804, 6330724, 9042244, 12998404, 19014724, 28306324, 38733364, 54004804, 71526004, 87806884, 112911124, 140218324, 177548884, 237679924, 302790244, 367882804, 436220164 ]
[ "nonn" ]
A335137
[ 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 59, 61, 62, 63, ...
[ "nonn" ]
A307093
[ 1, 0, -1, -2, -2, 1, 10, 29, 63, 117, 191, 265, 264, -12, -1014, -3654, -9634, -21929, -45424, -87551, -158289, -267616, -415513, -563200, -561430, 12625, 2202084, 8368243, 23532027, 57848882, 131000395, 279675274, 569701663, 1114392742, 2099105261...
[ "sign" ]
A141257
[ 2, 6, 10, 6, 14, 9, 4, 55, 4, 39, 14, 15, 8, 34, 6, 38, 10, 21, 22, 46, 9, 10, 26, 9, 4, 203, 6, 155, 10, 33, 34, 35, 4, 6, 74, 57, 26, 15, 82, 21, 86, 22, 6, 10, 1081, 8, 21, 4, 10, 51, 4, 689, 6, 15, 22, ...
[ "nonn", "less" ]
A273058
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 5...
[ "nonn" ]
A042697
[ 1, 1, 2, 3, 8, 19, 84, 103, 2968, 3071, 15252, 33575, 82402, 115977, 198379, 314356, 18431027, 18745383, 37176410, 55921793, 149019996, 353961785, 1564867136, 1918828921, 55292076924, 57210905845, 284135700304, 625482306453, 1535100313210, 2160582619663 ]
[ "nonn", "frac", "easy" ]
A075992
[ 4, 5, 7, 7, 10, 10, 10, 37, 37, 37, 37, 55, 55, 55, 55, 55, 55, 55, 82, 82, 82, 82, 82, 82 ]
[ "dead" ]
A109936
[ 8, 9, 10, 98, 99, 100, 998, 999, 1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 9974, 9975, 9976, 9977, 9978, 9979, 9980, 9981, 9982, 9983, 9984, 9985, 9986, 9987, 9988, 9989, 9990, 9991, 9992, 9993, 9994, 9995, 9996, 9997, 999...
[ "base", "easy", "nonn" ]
A176476
[ 0, 1, 6, 27, 113, 464, 1896, 7738, 31571, 128800, 525455, 2143647, 8745216, 35676948, 145547524, 593775045, 2422362078, 9882257735, 40315615409, 164471408184, 670976837020, 2737314167774, 11167134898975, 45557394660800, 185855747875875, 758216295635151 ]
[ "nonn", "easy" ]
A259261
[ 1, 2, 3, 13, 39, 55, 527, 776, 910, 942 ]
[ "nonn", "more", "hard" ]
A145064
[ 2, 1, 4, 5, 2, 7, 8, 3, 10, 11, 4, 13, 14, 5, 16, 17, 6, 19, 20, 7, 22, 23, 8, 25, 26, 9, 28, 29, 10, 31, 32, 11, 34, 35, 12, 37, 38, 13, 40, 41, 14, 43, 44, 15, 46, 47, 16, 49, 50, 17, 52, 53, 18, 55, 56, ...
[ "frac", "nonn", "easy" ]
A003647
[ 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 1, 4, 1, 1, 2, 2, 1, 2, 4, 1, 1, 2, 4, 1, 2, 1, 2, 1, 1, 2, 4, 2, 2, 2, 4, 3, 1, 2, 1, 2, 2, 3, 2, 1, 4, 1, 1, 4, 1, 2, 4, 2, 1, 1, 6...
[ "nonn" ]
A332515
[ 15, 16, 20, 24, 25, 30, 33, 44, 50, 51, 64, 66, 68, 69, 80, 87, 92, 96, 102, 116, 120, 123, 138, 141, 159, 164, 165, 174, 176, 177, 188, 200, 212, 213, 220, 236, 246, 249, 255, 256, 264, 267, 272, 275, 282, 284, 289, 300, ...
[ "nonn" ]
A077884
[ 1, 1, 2, 0, 1, -3, 2, -4, 9, -7, 18, -24, 33, -59, 82, -124, 201, -287, 450, -688, 1025, -1587, 2402, -3636, 5577, -8439, 12850, -19592, 29729, -45291, 68914, -104748, 159497, -242575, 368994, -561568, 854145, -1299555, 1977282, -3007844,...
[ "sign", "easy" ]
A223310
[ 3, 9, 36, 102, 343, 996, 3159, 9237, 28755, 84570, 260442, 769023, 2353687, 6969738, 21244302, 63039522, 191601206, 569452122, 1727158776, 5139583854, 15563717515, 46359362664, 140211940350, 417981796023, 1262920615919, 3767350662711 ]
[ "nonn" ]
A120137
[ 8, 12, 18, 27, 41, 61, 92, 138, 207, 310, 465, 698, 1047, 1570, 2355, 3533, 5299, 7949, 11923, 17885, 26827, 40241, 60361, 90542, 135813, 203719, 305579, 458368, 687552, 1031328, 1546992, 2320488, 3480732, 5221098, 7831647, 11747471, 17621206 ]
[ "nonn" ]
A149173
[ 1, 1, 4, 10, 34, 116, 414, 1520, 5801, 22425, 88356, 354015, 1436161, 5883984, 24364534, 101756744, 428049139, 1812818242, 7726376444, 33107102100, 142560071609, 616726081964, 2679247585672, 11683377518921, 51128959743600, 224495464642072, 988696444896896, 43665...
[ "nonn", "walk" ]
A105416
[ 1444, 1446, 1464, 1466, 1644, 1646, 1664, 1666 ]
[ "base", "fini", "full", "nonn" ]
A304750
[ 1, 1, 1, 2, 1, 1, 1, 2, 1, 3, 4, 1, 1, 1, 1, 4, 1, 1, 1, 2, 5, 3, 4, 2, 1, 3, 4, 2, 1, 6, 7, 1, 1, 3, 4, 5, 1, 1, 1, 2, 8, 1, 1, 7, 5, 5, 5, 4, 1, 8, 8, 7, 5, 5, 5, 9, 1, 1, 1, 2, 10, 3, 4, ...
[ "nonn" ]
A155465
[ 7, 88, 555, 3276, 19135, 111568, 650307, 3790308, 22091575, 128759176, 750463515, 4374021948, 25493668207, 148587987328, 866034255795, 5047617547476, 29419671029095, 171470408627128, 999402780733707, 5824946275775148 ]
[ "nonn", "easy" ]
A149400
[ 1, 1, 4, 12, 51, 187, 828, 3392, 15582, 67025, 312769, 1393236, 6588826, 29978985, 143025403, 661778961, 3177477385, 14873762054, 71793720043, 339223544275, 1643657134717, 7822576163185, 38030427258027, 182051826849128, 887368504414777, 4268323532093230, 208518778...
[ "nonn", "walk" ]
A156814
[ 226, 902, 2028, 3604, 5630, 8106, 11032, 14408, 18234, 22510, 27236, 32412, 38038, 44114, 50640, 57616, 65042, 72918, 81244, 90020, 99246, 108922, 119048, 129624, 140650, 152126, 164052, 176428, 189254, 202530, 216256, 230432, 245058, 260134 ]
[ "nonn", "easy" ]
A169217
[ 1, 12, 132, 1452, 15972, 175692, 1932612, 21258732, 233846052, 2572306572, 28295372292, 311249095212, 3423740047332, 37661140520652, 414272545727172, 4556998002998892, 50126978032987810, 551396758362865900 ]
[ "nonn" ]