id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A233617
[ 2555252447715, 29320690351065444, 333687213953551040000, 3.795208453266491e+24, 4.315438046043715e+28, 4.906869836427037e+32, 5.579329268797958e+36 ]
[ "nonn" ]
A185686
[ 5, 15149, 186191, 21897151, 14431069151 ]
[ "nonn", "base" ]
A334665
[ 12, 24, 30, 32, 36, 40, 42, 44, 48, 54, 56, 60, 64, 66, 68, 70, 72, 76, 78, 80, 84, 88, 90, 96, 98, 100, 104, 108, 110, 112, 114, 120, 126, 128, 130, 132, 136, 140, 144, 150, 152, 154, 156, 160, 162, 164, 168, 170, 172, 174, 176, 180, 182, 186, 190, 192, 196, 198, 200, 204 ]
[ "nonn" ]
A199446
[ 4, 7, 3, 8, 4, 7, 9, 7, 1, 2, 6, 3, 7, 7, 7, 4, 3, 0, 9, 9, 9, 8, 0, 1, 5, 8, 7, 1, 1, 4, 4, 2, 5, 9, 8, 5, 9, 1, 1, 6, 7, 1, 8, 0, 1, 2, 0, 4, 5, 3, 1, 8, 9, 1, 0, 6, 3, 0, 9, 0, 7, 5, 6, 5, 3, 7, 7, 8, 9, 0, 7, 4, 6, 2, 3, 3, 8, 7, 8, 0, 8, 9, 0, 8, 2, 9, 1, 7, 4, 3, 0, 2, 8, 8, 7, 9, 8, 8, 8 ]
[ "nonn", "cons" ]
A320302
[ 0, 1, 0, 1, 0, 0, 0, 6, 2, 1, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 2, 1, 0, 0, 2, 0, 0, 0, 1, 0, 0, 2, 1, 0, 2, 0, 0, 1, 0, 2, 0, 0, 2, 0, 2, 0, 0, 1, 1, 0, 0, 1, 3, 0, 0, 0, 0, 0, 0, 2, 3, 0, 0, 0, 0, 3, 0, 2, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 3, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 2, 0, 5, 0, 2, 0, 0, 3, 1, 0 ]
[ "nonn", "base" ]
A325205
[ 0, 1, 2, 9, 64, 625, 7776, 117649, 2097144, 43046136, 999970020, 25936053990, 742947675624, 23295384644532, 793591829158128, 29187143427692250, 1152639088016576100, 48646833059722980000, 2.1851507410639247e+21, 1.0408532889878493e+23, 5.240461483486301e+24 ]
[ "easy", "nonn" ]
A343071
[ 0, 0, 5, 0, 7, 20, 27, 0, 11, 28, 39, 80, 91, 108, 119, 0, 19, 44, 63, 112, 131, 156, 175, 320, 339, 364, 383, 432, 451, 476, 495, 0, 35, 76, 111, 176, 211, 252, 287, 448, 483, 524, 559, 624, 659, 700, 735, 1280, 1315, 1356, 1391, 1456, 1491, 1532, 1567, 1728, 1763, 1804, 1839, 1904, 1939, 1980, 2015 ]
[ "nonn", "tabf", "easy" ]
A331712
[ 1, 4, 59, 1987, 73567, 2451082, 75511809, 2339355873, 69675164655, 1979830442230, 54476566524395, 1451352437084341, 37417988223257670, 936855055418767600, 22833066207602692000, 542259452455606550000, 1.2569324678636156e+22, 2.8478434551679608e+23, 6.313245421004112e+24 ]
[ "nonn" ]
A013374
[ 0, -2, 0, -2, 2240, -2, 137280, -403603202, 10325120, -223480857602, 1042911543845760, -119078050291202, 2638564062897339400, -1.6807721436490039e+22, 5.561493227350293e+21 ]
[ "sign" ]
A029626
[ 1, 3, 5, 7, 11, 15, 9, 17, 35, 13, 57, 85, 23, 77, 147, 175, 133, 63, 19, 29, 99, 21, 155, 375, 187, 605, 1155, 495, 143, 25, 1925, 3069, 27, 41, 2717, 5291, 7293, 4719, 195, 301, 3731, 13013, 15873, 7007, 1001, 31, 47, 345, 1575, 5005, 11739, 21021, 29315 ]
[ "nonn" ]
A004793
[ 1, 3, 4, 6, 10, 12, 13, 15, 28, 30, 31, 33, 37, 39, 40, 42, 82, 84, 85, 87, 91, 93, 94, 96, 109, 111, 112, 114, 118, 120, 121, 123, 244, 246, 247, 249, 253, 255, 256, 258, 271, 273, 274, 276, 280, 282, 283, 285, 325, 327, 328, 330, 334, 336, 337, 339, 352, 354 ]
[ "nonn" ]
A068186
[ 22, 333, 22222222, 55555, 333333222222, 7777777, 2.2222222222222222e+23, 333333333333333300, 55555555552222224000, 0, 3.333333333332222e+35, 0, 7.777777777777722e+27 ]
[ "base", "nonn" ]
A140166
[ 1, 1, 1, 1, -1, 1, 1, 3, 0, 1, 1, -5, 3, -2, 1, 1, 11, -2, 7, -1, 1, 1, -21, 9, -16, 6, -3, 1, 1, 43, -12, 41, -10, 12, -2, 1, 1, -85, 31, -94, 31, -34, 10, -4, 1, 1, 171, -54, 219, -63, 99, -24, 18, -3, 1 ]
[ "sign", "tabl" ]
A092101
[ 5, 13, 17, 23, 41, 67, 73, 79, 107, 113, 139, 149, 157, 179, 191, 193, 223, 239, 241, 251, 263, 277, 281, 293, 307, 311, 317, 331, 337, 349, 431, 443, 449, 461, 467, 479, 487, 491, 499, 503, 541, 547, 557, 563, 569, 593, 619, 653, 683, 691, 709, 757, 769, 787 ]
[ "nonn", "changed" ]
A154563
[ 18, 60, 138, 150, 1278, 1620, 2730, 4128, 6360, 11718, 13398, 17490, 20808, 23028, 28308, 29670, 51870, 61380, 69828, 73848, 78540, 92568, 97500, 115770, 138570, 166668, 176610, 193380, 200928, 258318, 304980, 430008, 500910, 518760, 536190 ]
[ "nonn" ]
A230620
[ 0, 0, 0, 0, 1, 9, 97, 983, 10616, 119932, 1441405, 18383351, 249155667, 3581896559, 54540748818, 877824410030, 14904605652001, 266431586957773, 5004557444810885, 98594548150006580, 2033673324306910000, 43845407809459640000, 986496730691143500000 ]
[ "nonn" ]
A182526
[ 1, 8, 1, 9, 7, 0, 6, 0, 2, 7, 1, 7, 0, 8, 0, 0, 4, 7, 6, 3, 2, 9, 0, 6, 6, 0, 5, 7, 7, 5, 3, 9, 0, 6, 5, 4, 4, 5, 5, 9, 7, 4, 5, 4, 4, 9, 8, 1, 9, 0, 2, 9, 5, 2, 9, 0, 6, 0, 6, 8, 4, 3, 0, 0, 1, 9, 9, 6, 6, 6, 6, 4, 7, 6, 6, 7, 3, 1, 2, 8, 4, 3, 7, 8, 9, 3, 2, 0, 9, 1, 1, 3, 7, 2, 9, 6, 4, 4, 1, 9, 2, 7, 1, 2, 6 ]
[ "nonn", "cons" ]
A043145
[ 20, 44, 69, 93, 118, 140, 167, 191, 216, 240, 265, 289, 308, 338, 363, 387, 412, 436, 461, 483, 510, 534, 559, 583, 608, 632, 651, 681, 706, 730, 755, 779, 804, 826, 853, 877, 902, 926, 951, 975, 980, 1049, 1073, 1098, 1122 ]
[ "nonn", "base" ]
A311360
[ 1, 4, 8, 12, 16, 22, 27, 31, 35, 38, 44, 48, 54, 54, 61, 66, 72, 73, 81, 81, 88, 91, 99, 96, 106, 111, 116, 114, 127, 125, 133, 133, 144, 137, 152, 156, 161, 154, 172, 169, 179, 176, 188, 178, 197, 202, 206, 195, 216, 212 ]
[ "nonn" ]
A251028
[ 110, 526, 526, 1966, 2546, 1966, 6321, 8207, 8207, 6321, 18330, 23404, 20608, 23404, 18330, 49481, 60044, 51347, 51347, 60044, 49481, 126955, 144737, 118871, 119632, 118871, 144737, 126955, 314337, 334167, 272547, 257578, 257578, 272547, 334167 ]
[ "nonn", "tabl" ]
A212250
[ 0, 0, 4, 18, 54, 129, 262, 478, 807, 1281, 1938, 2821, 3975, 5451, 7305, 9595, 12385, 15744, 19743, 24459, 29974, 36372, 43743, 52182, 61786, 72658, 84906, 98640, 113976, 131035, 149940, 170820, 193809, 219043, 246664, 276819, 309657 ]
[ "nonn", "easy" ]
A048412
[ 0, 1, 2, 3, 11, 26, 111, 1111, 11111, 111111, 1111111, 11111111, 111111111 ]
[ "nonn", "base", "more" ]
A170290
[ 1, 41, 1640, 65600, 2624000, 104960000, 4198400000, 167936000000, 6717440000000, 268697600000000, 10747904000000000, 429916160000000000, 17196646400000000000, 687865856000000000000, 2.751463424e+22 ]
[ "nonn" ]
A152589
[ 17, 227, 50627, 6568408355712891000 ]
[ "nonn" ]
A126145
[ 3, 5, 7, 11, 13, 17, 31, 37, 43, 47, 61, 67, 71, 79, 89, 103, 109, 131, 139, 173, 181, 193, 197, 223, 227, 241, 251, 271, 277, 281, 283, 311, 331, 347, 373, 379, 383, 439, 443, 487, 491, 523, 541, 547, 557, 607, 617, 643, 647, 661, 701, 709, 719, 733, 739, 743 ]
[ "easy", "nonn" ]
A086551
[ 3, 2, 12, 24, 48, 60, 192, 168, 180, 240, 5120, 360, 20480, 2112, 720, 840, 983040, 1260, 786432, 3024, 2880, 15360, 62914560, 3360, 22032, 266240, 6300, 6720, 13690208256, 5040, 22548578304, 7560, 156672, 6881280, 25920, 10080 ]
[ "nonn" ]
A304052
[ 1, 3, 11, 10, 51, 165, 306, 993, 2867, 6818, 19499, 54021, 139706, 384617, 1048819, 2792250, 7592483, 20586021, 55352322, 149900145, 405599347, 1094294546, 2959508123, 8001948805, 21614029834, 58429173497, 157940108211, 426779942186 ]
[ "nonn" ]
A048881
[ 0, 0, 1, 0, 1, 1, 2, 0, 1, 1, 2, 1, 2, 2, 3, 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3 ]
[ "nonn", "easy" ]
A382081
[ 0, 0, 0, 1, 10, 55, 215, 665, 1736, 3990, 8310, 16005, 28930, 49621, 81445, 128765, 197120, 293420, 426156, 605625, 844170, 1156435, 1559635, 2073841, 2722280, 3531650, 4532450, 5759325, 7251426, 9052785, 11212705, 13786165, 16834240, 20424536, 24631640, 29537585 ]
[ "nonn", "easy" ]
A384410
[ 1, 541, 51270122, 76788748015146, 669464791102102200000, 2.1339839181227036e+28, 1.9006063809265434e+36, 3.966332715514417e+44, 1.7127016929512907e+53 ]
[ "nonn" ]
A073510
[ 0, 2, 17, 127, 1003, 8326, 71038, 618610, 5481646, 49221187, 446590932, 4087194991, 37677478288, 349465615584, 3258501713644, 30522628848972, 287059041039078, 2709339704446862, 25652489700275636, 243571629996128400, 2318640708958531000, 22123070798400774000 ]
[ "base", "hard", "nonn" ]
A241503
[ 12, 21, 34, 36, 43, 46, 58, 63, 64, 79, 85, 97, 338, 356, 374, 376, 426, 456, 544, 580, 593, 698, 845, 886, 947, 963, 2071, 2162, 3188, 4187, 5939, 8806, 8955, 8968, 9409, 9944, 34414, 34940, 38754, 41789, 42844, 44437, 45876, 47730, 49060, 54424, 58774, 67304, 69340 ]
[ "nonn", "base" ]
A261381
[ 1, 0, 1, 0, 3, 24, 15, 504, 105, 9072, 436401, 166320, 28750491, 3243240, 1307809503, 27965161224, 52309001745, 3795543015264, 2000776242465, 324424646818272, 17268536366932852, 22708075360010040, 3974396337125445000, 1436250980764880400, 548178165969608500000 ]
[ "nonn" ]
A097782
[ 1, 29, 840, 24331, 704759, 20413680, 591291961, 17127053189, 496093250520, 14369577211891, 416221645894319, 12056058153723360, 349209464812083140, 10115018421396687000, 292986324755691830000, 8.486488399493666e+21 ]
[ "nonn", "easy" ]
A373825
[ 1, 2, 13, 11, 105, 57, 33, 69, 59, 29, 227, 129, 211, 341, 75, 321, 51, 45, 407, 313, 459, 301, 767, 1829, 413, 537, 447, 1113, 1301, 1411, 1405, 2865, 1709, 1429, 3471, 709, 2543, 5231, 1923, 679, 3301, 2791, 6555, 5181, 6345, 11475, 2491, 10633 ]
[ "nonn" ]
A009470
[ 18, 216, 324, 432, 540, 648, 756, 864, 972, 1080, 1188, 1296, 13104, 14112, 15120, 16128, 17136, 18144, 19152, 20160, 21168, 22176, 23184, 24192, 25200, 26208, 27216, 28224, 29232, 30240, 31248, 32256, 33264, 34272, 35280, 36288, 37296, 38304, 39312 ]
[ "nonn", "base", "less", "easy" ]
A133897
[ 42, 43, 44, 45, 46, 47, 48, 91, 92, 93, 94, 95, 96, 97, 140, 141, 142, 143, 144, 145, 146, 189, 190, 191, 192, 193, 194, 195, 238, 239, 240, 241, 242, 243, 244, 287, 288, 289, 290, 291, 292, 293, 336, 337, 338, 339, 340, 341, 342, 385, 386, 387, 388, 389, 390 ]
[ "nonn", "easy" ]
A006891
[ 2, 5, 0, 2, 9, 0, 7, 8, 7, 5, 0, 9, 5, 8, 9, 2, 8, 2, 2, 2, 8, 3, 9, 0, 2, 8, 7, 3, 2, 1, 8, 2, 1, 5, 7, 8, 6, 3, 8, 1, 2, 7, 1, 3, 7, 6, 7, 2, 7, 1, 4, 9, 9, 7, 7, 3, 3, 6, 1, 9, 2, 0, 5, 6, 7, 7, 9, 2, 3, 5, 4, 6, 3, 1, 7, 9, 5, 9, 0, 2, 0, 6, 7, 0, 3, 2, 9, 9, 6, 4, 9, 7, 4, 6, 4, 3, 3, 8, 3, 4, 1, 2, 9, 5, 9 ]
[ "cons", "nonn", "nice" ]
A020925
[ 1, -26, 286, -1716, 6006, -12012, 12012, -3432, -858, -572, -572, -728, -1092, -1848, -3432, -6864, -14586, -32604, -76076, -184184, -460460, -1184040, -3121560, -8414640, -23140260, -64792728, -184410072, -532740208, -1560167752, -4626704368, -13880113104 ]
[ "sign" ]
A327509
[ 1, 0, 0, 0, 0, 0, 0, 0, 1, 36, 750, 11880, 159027, 1899612, 20912320, 216627840, 2141770488, 20416870188, 189100389270, 1713143123640, 15314761051669, 137723007972924, 1310008783707360, 14647748873844240, 215375952901752220, 4079250159907459600 ]
[ "nonn" ]
A280770
[ 1, 2, 3, 4, 5, 6, 7, 8, 11, 9, 10, 12, 14, 13, 17, 15, 19, 16, 23, 18, 21, 24, 29, 20, 26, 22, 31, 25, 39, 27, 37, 28, 34, 30, 41, 32, 43, 33, 47, 35, 38, 36, 46, 40, 51, 42, 52, 44, 53, 45, 59, 48, 61, 49, 68, 50, 57, 54, 67, 55, 58, 56, 76, 60, 66, 63, 71, 62, 74, 64, 73, 65, 79, 69, 83, 70, 89, 72, 97 ]
[ "nonn" ]
A336141
[ 1, 1, 2, 5, 9, 17, 41, 71, 138, 270, 518, 938, 1863, 3323, 6163, 11436, 20883, 37413, 69257, 122784, 221873, 397258, 708142, 1249955, 2236499, 3917628, 6909676, 12130972, 21251742, 36973609, 64788378, 112103360, 194628113, 336713377, 581527210, 1000153063 ]
[ "nonn" ]
A213556
[ 1, 19, 118, 446, 1271, 3017, 6300, 11964, 21117, 35167, 55858, 85306, 126035, 181013, 253688, 348024, 468537, 620331, 809134, 1041334, 1324015, 1664993, 2072852, 2556980, 3127605, 3795831, 4573674, 5474098, 6511051, 7699501 ]
[ "nonn", "easy" ]
A378272
[ 2, 6, 40, 84, 990, 936, 5100, 8208, 12420, 48720, 37200, 139860, 196800, 216720, 118440, 648720, 2180640, 1024800, 1857240, 2385600, 2522880, 4180680, 3884400, 9868320, 17599680, 21816000, 16315200, 18874800, 51273600, 34171200, 48646080, 120163680, 110674080 ]
[ "nonn" ]
A004139
[ 3, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241 ]
[ "nonn", "easy" ]
A331550
[ 9, 6, 4, 1, 3, 10, 1, 10, 12, 8, 14, 7, 9, 6, 0, 2, 5, 0, 12, 2, 6, 7, 5, 6, 9, 8, 7, 0, 4, 2, 10, 1, 2, 9, 8, 0, 11, 13, 6, 11, 6, 6, 12, 5, 2, 9, 0, 1, 5, 1, 10, 9, 11, 8, 8, 14, 0, 12, 6, 0, 1, 1, 12, 14, 2, 13, 5, 13, 14, 9, 10, 12, 14, 9, 6, 6, 0, 12, 12, 7 ]
[ "nonn", "base" ]
A386902
[ 0, 0, 0, 0, 0, 18, 74, 193, 491, 857, 1695, 2503, 4321, 5836, 9200, 11715, 17284, 21256, 29805, 35589, 48156, 56260, 73766, 84860, 108495, 123080, 154298, 172998, 213045, 236895, 287260, 316743, 379465, 415456, 491930, 535713, 627879, 680052, 790401, 851914, 982130 ]
[ "nonn" ]
A094144
[ 5, 7, 15, 17, 19, 51, 73, 89, 131, 153, 245, 333, 441, 463, 825, 1771, 2027, 9157, 10875, 20515 ]
[ "nonn" ]
A075439
[ 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 ]
[ "nonn", "tabf" ]
A240859
[ 1, 8, 27, 125, 216, 512, 2744, 3375, 8000, 9261, 35937, 68921, 125000, 157464, 328509, 421875, 474552, 704969, 729000, 970299, 1157625, 1367631, 1685159, 2248091, 2628072, 2803221, 3581577, 3723875, 4741632, 5177717, 5451776, 6751269, 7301384, 9129329, 9938375 ]
[ "nonn", "easy" ]
A169381
[ 1, 32, 992, 30752, 953312, 29552672, 916132832, 28400117792, 880403651552, 27292513198112, 846067909141472, 26228105183385630, 813071260684954600, 25205209081233592000, 781361481518241400000, 2.4222205927065483e+22 ]
[ "nonn" ]
A079977
[ 1, 0, 1, 0, 2, 0, 3, 0, 5, 0, 8, 0, 13, 0, 21, 0, 34, 0, 55, 0, 89, 0, 144, 0, 233, 0, 377, 0, 610, 0, 987, 0, 1597, 0, 2584, 0, 4181, 0, 6765, 0, 10946, 0, 17711, 0, 28657, 0, 46368, 0, 75025, 0, 121393, 0, 196418, 0, 317811, 0, 514229, 0, 832040, 0, 1346269 ]
[ "nonn", "easy" ]
A364358
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 2, 1, 1, 1, 1, 3, 1, 1, 1, 1, 2, 1, 1, 1, 2, 2 ]
[ "nonn" ]
A273707
[ 1, 4, 21, 33, 68, 105, 144, 193, 277, 329, 409, 433, 568, 625, 760, 817, 1013, 1105, 1277, 1369, 1553, 1661, 1841, 1993, 2205, 2297, 2589, 2705, 3025, 3125, 3381, 3553, 3881, 4105, 4389, 4593, 4933, 5053, 5385, 5681, 6009, 6257, 6585, 6889, 7245, 7573, 7841 ]
[ "nonn", "easy" ]
A097223
[ 17, 73, 2475989 ]
[ "base", "fini", "full", "nonn", "bref" ]
A284570
[ 2, 0, 2, -2, 6, -6, 4, -2, 4, -6, 12, -12, 6, 0, 0, -6, 12, -12, 12, -6, 0, -6, 18, -16, 4, -2, 8, -12, 24, -24, 8, -2, 0, 0, 16, -22, 6, 0, 12, -18, 24, -24, 12, 0, -6, -6, 24, -22, 10, -6, 6, -12, 18, -12, 12, -12, 0, -6, 42, -42, 6, 6, -2, -4, 18, -24, 12, -6, 18, -24, 32, -32, 6, 6, 0, -6, 18, -24, 24, -18, 0, -6, 42, -36, 0, 0, 12, -18, 42, -36, 6, -6 ]
[ "sign" ]
A192430
[ 1, 1, 3, 9, 33, 113, 403, 1409, 4977, 17489, 61619, 216809, 763377, 2686881, 9458787, 33295297, 117206177, 412579681, 1452347043, 5112464521, 17996645761, 63350804881, 223004208243, 785007489729, 2763341973393, 9727369663793 ]
[ "nonn" ]
A201127
[ 4, 22, 78, 199, 424, 814, 1410 ]
[ "nonn", "hard", "nice", "more" ]
A046023
[ 0, 1, 12, 87, 416, 1475, 4236, 10437, 22912, 45981, 85900, 151371, 254112, 409487, 637196, 962025, 1414656, 2032537, 2860812, 3953311, 5373600, 7196091, 9507212, 12406637, 16008576, 20443125, 25857676, 32418387, 40311712 ]
[ "nonn", "easy" ]
A216305
[ 40, 49, 70, 76, 91, 157, 253, 274, 301, 304, 322, 349, 370, 388, 475, 505, 517, 622, 652, 715, 769, 817, 868, 931, 994, 1015, 1039, 1063, 1078, 1132, 1168, 1228, 1240, 1279, 1315, 1324, 1378, 1441, 1477, 1555, 1567, 1687, 1723, 1735, 1819, 1837, 1867, 1900 ]
[ "nonn" ]
A304193
[ 1, 4, 16, 144, 2346, 55236, 1688084, 63040736, 2770165274, 139623836116, 7925496107656, 499719554537584, 34625595715906864, 2613946666882042400, 213475621178226870000, 1.8748792440158255e+22, 1.7618757676914111e+24, 1.7638345608142416e+26, 1.8739798321516251e+28, 2.105891800817103e+30 ]
[ "nonn" ]
A046293
[ 102, 107, 203, 207, 248, 257, 263, 271, 307, 312, 321, 324, 329, 331, 343, 357, 362, 385, 390, 429, 458, 469, 486, 491, 524, 535, 546, 553, 568, 569, 586, 607, 614, 625, 627, 633, 634, 640, 648, 651, 662, 665, 668, 675, 688, 695, 702, 707, 711, 712, 715 ]
[ "nonn", "base" ]
A315209
[ 1, 6, 10, 14, 20, 24, 30, 34, 42, 44, 54, 54, 60, 62, 72, 68, 84, 82, 96, 94, 106, 98, 114, 110, 118, 120, 136, 132, 150, 142, 152, 150, 166, 150, 176, 168, 190, 182, 202, 182, 210, 198, 208, 206, 228, 218, 244, 230, 244, 238 ]
[ "nonn" ]
A223916
[ 148, 4102, 45988, 323394, 1721356, 7526024, 28247478, 93683295, 280338123, 769012348, 1958026231, 4673735444, 10543684618, 22631328296, 46477583300, 91756934105, 174838318505, 322648096420, 578369211133, 1009683032422 ]
[ "nonn" ]
A056746
[ 0, 0, 0, 84, 438984, 2194477729800 ]
[ "hard", "nonn" ]
A301724
[ 1, 6, 10, 16, 23, 27, 31, 38, 44, 48, 54, 60, 64, 70, 77, 81, 85, 92, 98, 102, 108, 114, 118, 124, 131, 135, 139, 146, 152, 156, 162, 168, 172, 178, 185, 189, 193, 200, 206, 210, 216, 222, 226, 232, 239, 243, 247, 254, 260, 264, 270, 276, 280, 286, 293, 297, 301, 308, 314, 318, 324, 330, 334, 340 ]
[ "nonn", "easy" ]
A316562
[ 16, 40, 64, 89, 113, 138, 162, 186, 211, 235, 260, 284, 308, 333, 357, 382, 406, 430, 455, 479, 504, 528, 552, 577, 601, 626 ]
[ "nonn", "fini", "full" ]
A278344
[ 1, 10, 100, 1011, 10000, 101111, 1000000, 10101111, 101000000, 1010111111, 10100000000, 101011111111, 1010000000000, 10101011111111, 101010000000000, 1010101011111111, 10101010000000000, 101010101111111100, 1010101000000000000, 10101010111111110000 ]
[ "nonn", "easy" ]
A367723
[ 1, 1, 1, 1, 1, -119, -719, -2519, -6719, 166321, 3598561, 29882161, 159572161, -389343239, -55939643759, -974399385959, -9282412863359, -46891283580959, 1814094098389441, 67045782535457760, 1076141148146824300, 61735522719009660000, 1.0583823958426649e+21 ]
[ "sign" ]
A166557
[ 1, 12, 132, 1452, 15972, 175692, 1932612, 21258732, 233846052, 2572306572, 28295372292, 311249095212, 3423740047266, 37661140519200, 414272545703280, 4556998002648960, 50126978028180240, 551396758299441150, 6065364341177896000, 66719007751681330000 ]
[ "nonn" ]
A136843
[ 0, 1, 6, 10, 56, 60, 100, 551, 560, 600, 1000, 1056, 1066, 1156, 3656, 5506, 5510, 5600, 6000, 10000, 10301, 10560, 10656, 10660, 11560, 36056, 36560, 55056, 55060, 55100, 56000, 60000, 100000, 100551, 100656, 103010, 103131, 105506, 105600, 105666, 106551, 106560, 106600, 115566, 115600, 316331, 360560, 365600, 550501, 550560, 550600, 551000 ]
[ "base", "nonn" ]
A086061
[ 256, 640, 1216, 1856, 2720, 3616, 4576, 5872, 7216, 8624, 10064, 11664, 13328, 15272, 17288, 19400, 21560, 23736, 25976, 28376, 30808, 33304, 36220, 39164, 42188, 45324, 48492, 51732, 54996, 58356, 61876, 65476, 69124, 72836, 76580 ]
[ "easy", "nonn" ]
A229145
[ 31, 191, 257, 367, 3061, 110503, 1145393 ]
[ "hard", "more", "nonn" ]
A154501
[ 3, 11, 17, 31, 41, 59, 97, 113, 127, 139 ]
[ "nonn" ]
A223151
[ 0, 12, 96, 788, 3872, 24092, 114824, 665056, 3211640, 17925968, 87559240, 477991060, 2355798592, 12678054948, 62875715760, 335152364948, 1670657735304, 8843353567888, 44252748071720, 233037529994720, 1169694173234480 ]
[ "nonn" ]
A101205
[ 1, 0, 1, 4, 16, 75 ]
[ "nonn" ]
A297561
[ 1, 3, 24, 705, 7114752 ]
[ "nonn", "more" ]
A245522
[ 3, 11, 15, 15, 31, 39, 373, 1285, 1285, 1285, 2119, 2119, 15605, 29223, 52225, 52225, 186157, 186157, 1378927, 3137489, 4189897, 4189897, 10373543, 50359121, 50359121, 50359121, 490844965, 605616359, 605616359, 605616359, 3351375815, 3351375815, 5812974437 ]
[ "nonn", "base" ]
A060622
[ 32, 240, 2144, 22624 ]
[ "nonn" ]
A167092
[ 1, 39, 1482, 56316, 2140008, 81320304, 3090171552, 117426518976, 4462207721088, 169563893401344, 6443427949251072, 244850262071540740, 9304309958718548000, 353563778431304800000, 1.3435423580389584e+22 ]
[ "nonn" ]
A332429
[ 288, 5148, 33291, 108252, 283464, 591723, 1133928, 1941786, 3166605, 4837824, 7170120, 10164258, 14124447, 19017180, 25206777, 32659191, 41826366, 52595622, 65549880, 80507142, 98143200, 118271898, 141655707 ]
[ "nonn", "more" ]
A323589
[ 1, 1, 2, 25, 6272, 63473089, 35671256150400, 1.7069374961903898e+21, 7.511133178157709e+30, 4.755809816953037e+42, 3.941432762578951e+56 ]
[ "nonn" ]
A046099
[ 8, 16, 24, 27, 32, 40, 48, 54, 56, 64, 72, 80, 81, 88, 96, 104, 108, 112, 120, 125, 128, 135, 136, 144, 152, 160, 162, 168, 176, 184, 189, 192, 200, 208, 216, 224, 232, 240, 243, 248, 250, 256, 264, 270, 272, 280, 288, 296, 297, 304, 312, 320, 324, 328, 336 ]
[ "nonn" ]
A045727
[ 3, 34, 377, 317811, 3524578, 39088169, 32951280099, 365435296162, 308061521170129, 3416454622906707, 37889062373143900, 31940434634990100000, 354224848179261900000, 3.928413764606871e+21 ]
[ "nonn", "base" ]
A375354
[ 1, 1, 2, 1, 4, 20, 1, 8, 104, 1504, 1, 16, 544, 22208, 948032, 1, 32, 2848, 329216, 40930304, 5204262912, 1, 64, 14912, 4883968, 1772261888, 666548862976, 254112496082944, 1, 128, 78080, 72464384, 76795762688, 85575149027328, 97392800416399360, 111879597850371300000 ]
[ "nonn", "tabl" ]
A209133
[ 1, 2, 1, 2, 5, 4, 2, 9, 18, 10, 2, 13, 40, 56, 28, 2, 17, 70, 154, 176, 76, 2, 21, 108, 320, 564, 540, 208, 2, 25, 154, 570, 1344, 1976, 1640, 568, 2, 29, 208, 920, 2700, 5304, 6720, 4928, 1552, 2, 33, 270, 1386, 4848, 11844, 20016, 22320, 14688, 4240 ]
[ "nonn", "tabl" ]
A154735
[ 8, 5, 2, 1, 0, 9, 6, 0, 7, 2, 2, 0, 1, 2, 7, 6, 2, 7, 8, 2, 7, 0, 8, 5, 9, 9, 9, 8, 7, 7, 4, 2, 2, 4, 6, 2, 1, 0, 8, 0, 4, 1, 1, 9, 9, 7, 7, 9, 6, 4, 9, 9, 8, 3, 4, 6, 4, 8, 1, 7, 5, 5, 9, 3, 2, 8, 3, 3, 8, 7, 4, 2, 7, 3, 9, 5, 0, 7, 8, 3, 2, 9, 6, 5, 2, 7, 0, 2, 2, 5, 0, 2, 0, 5, 7, 3, 9, 6, 8 ]
[ "nonn", "cons" ]
A223673
[ 64, 4096, 61996, 321163, 1023339, 2715255, 6789502, 16634224, 40086061, 94218637, 214377471, 470774847, 998649425, 2051656863, 4092563126, 7942987666, 15025087905, 27743027247, 50072239147, 88451496245, 153108327757 ]
[ "nonn" ]
A084057
[ 1, 1, 6, 16, 56, 176, 576, 1856, 6016, 19456, 62976, 203776, 659456, 2134016, 6905856, 22347776, 72318976, 234029056, 757334016, 2450784256, 7930904576, 25664946176, 83053510656, 268766806016, 869747654656, 2814562533376, 9108115685376, 29474481504256 ]
[ "easy", "nonn" ]
A028351
[ 1, 0, 1, 1, 5, 9, 33, 85, 276, 827, 2693, 8626, 28639, 95393, 323367, 1104525, 3813797, 13266366, 46509357, 164098390 ]
[ "nonn", "more" ]
A143936
[ 5262, 2262756, 972979926, 418379105532, 179902042398942, 77357459852439630 ]
[ "nonn" ]
A212698
[ 3, 24, 144, 768, 3840, 18432, 86016, 393216, 1769472, 7864320, 34603008, 150994944, 654311424, 2818572288, 12079595520, 51539607552, 219043332096, 927712935936, 3917010173952, 16492674416640, 69269232549888, 290271069732864, 1213860837064704, 5066549580791808 ]
[ "nonn", "easy" ]
A016288
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 ]
[ "sign" ]
A206509
[ 111495, 10505604, 769739571, 47830788954, 2671430859687, 138401623325535, 6781274991216915, 318257080720663900, 14433205926606629000, 636578185379733800000, 2.743719978968497e+22, 1.1599843090838842e+24 ]
[ "nonn" ]
A254048
[ 0, 1, 1, 2, 1, 1, 1, 4, 1, 3, 2, 6, 1, 2, 3, 8, 1, 5, 1, 10, 2, 1, 4, 12, 1, 7, 5, 14, 3, 4, 2, 16, 1, 9, 6, 18, 1, 3, 7, 20, 2, 11, 3, 22, 4, 6, 8, 24, 1, 13, 9, 26, 5, 2, 1, 28, 3, 15, 10, 30, 2, 8, 11, 32, 1, 17, 4, 34, 6, 5, 12, 36, 1, 19, 13, 38, 7, 10, 5, 40, 2, 21, 14, 42, 3, 1, 15, 44, 4, 23, 2, 46, 8, 12, 16, 48, 1, 25, 17, 50, 9, 7, 6, 52, 5, 27, 18, 54, 1, 14, 19, 56, 3, 29, 7, 58, 10, 4, 20, 60, 2 ]
[ "nonn" ]
A339719
[ 1, -4, -4, 6, -4, 12, -4, -8, 6, 12, -4, -12, -4, 12, 12, 17, -4, -12, -4, -12, 12, 12, -4, 20, 6, 12, -8, -12, -4, -20, -4, -28, 12, 12, 12, 10, -4, 12, 12, 20, -4, -20, -4, -12, -12, 12, -4, -48, 6, -12, 12, -12, -4, 20, 12, 20, 12, 12, -4, 4, -4, 12, -12, 38, 12, -20, -4, -12, 12, -20 ]
[ "sign" ]
A256615
[ 3, 1, 5, 5, 4, 0, 2, 8, 7, 7, 3, 8, 1, 1, 4, 4, 7, 2, 2, 7, 7, 4, 6, 6, 4, 4, 5, 5, 7, 3, 9, 8, 0, 5, 6, 9, 0, 4, 5, 8, 3, 5, 1, 5, 8, 8, 8, 4, 4, 0, 2, 4, 8, 1, 9, 5, 7, 7, 7, 7, 1, 4, 5, 4, 3, 5, 3, 2, 0, 3, 7, 0, 6, 5, 2, 8, 9, 7, 5, 4, 9, 2, 4, 4, 8, 2, 5, 4, 9, 2, 4, 1, 1, 3, 8, 1, 7, 2, 7, 1, 7, 5, 0, 1 ]
[ "nonn", "cons" ]
A254441
[ 2, 3, 6, 20, 26, 38, 51, 119, 155, 218, 446, 486, 1211, 1319, 1338, 1365, 1575, 5106, 7019, 9503, 9695, 14304, 15417, 17765, 24222, 25500, 26306, 35238, 93207 ]
[ "nonn", "more" ]
A029456
[ 1, 5, 11, 20, 25, 44, 55, 100, 121, 220, 275, 281, 484, 508, 605, 748, 1012, 1100, 1331, 1496, 1573, 1595, 1768, 2200, 3016, 3025, 3400, 4825, 4840, 6655, 7480, 9320, 9515, 10648, 11320, 12760, 14641, 15125, 15400, 15507, 16335, 16456, 17000, 17215 ]
[ "nonn", "base" ]
A389011
[ 8, 3, 3, 0, 6, 5, 2, 9, 6, 9, 3, 9, 5, 8, 8, 9, 3, 2, 5, 2, 7, 8, 3, 3, 5, 6, 7, 3, 4, 6, 5, 2, 7, 2, 1, 5, 7, 8, 5, 1, 5, 3, 8, 4, 8, 4, 1, 6, 1, 7, 1, 4, 1, 4, 9, 1, 9, 3, 0, 4, 2, 3, 7, 2, 8, 2, 8, 2, 2, 4, 7, 1, 8, 9, 4, 4, 7, 0, 3, 7, 8, 0, 7, 8, 8, 6, 8 ]
[ "nonn", "cons" ]