id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A061851
[ 11, 111, 1111, 11111, 110011, 111111, 1100011, 1111111, 11000011, 11100111, 11111111, 110000011, 111000111, 111111111, 1100000011, 1100110011, 1110000111, 1111001111, 1111111111, 11000000011, 11001110011, 11100000111, 11110001111, 11111111111, 110000000011, 11000110...
[ "base", "nonn" ]
A058602
[ 0, 2, 4, 6, 8, 16, 18, 26, 30, 42, 52, 54, 60, 98, 138, 148, 164, 180, 188, 198, 232, 268, 366, 494, 556, 636, 700, 830, 908, 2164, 5764, 9854, 10384, 17550, 20236, 32820, 42372, 77466, 106562 ]
[ "nonn", "more" ]
A217921
[ 0, 1, 0, 2, 1, 2, 0, 2, 2, 1, 3, 3, 3, 2, 0, 2, 2, 4, 3, 3, 1, 4, 3, 2, 3, 3, 2, 2, 3, 2, 0, 2, 2, 4, 2, 2, 4, 3, 2, 3, 4, 1, 3, 4, 3, 4, 3, 2, 2, 4, 3, 3, 3, 2, 2, 3, 2, 3, 2, 2, 3, 2, 0, 2...
[ "nonn" ]
A110430
[ 5, 54, 549, 5499, 54999, 549999, 5499999, 54999999, 549999999, 5499999999, 54999999999, 549999999999, 5499999999999, 54999999999999, 549999999999999, 5499999999999999, 55000000000000000, 550000000000000000, 5500000000000000000 ]
[ "base", "easy", "nonn" ]
A250669
[ 104, 520, 2512, 11736, 53032, 233300, 1005121, 4260728, 17835379, 73930174, 304111433, 1243471948, 5060483311, 20518170938, 82950532885, 334582615528, 1347111707003, 5416107760342, 21751360774177, 87278063198468 ]
[ "nonn" ]
A008520
[ 0, 1, 3, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 33, 35, 37, 38, 39, 41, 43, 45, 47, 48, 49, 51, 53, 55, 57, 58, 59, 61, 63, 65, 67, 68, 69, 70, 71, 72, ...
[ "nonn", "word" ]
A130477
[ 1, 1, 1, 1, 2, 3, 1, 3, 8, 12, 1, 4, 15, 40, 60, 1, 5, 24, 90, 240, 360, 1, 6, 35, 168, 630, 1680, 2520, 1, 7, 48, 280, 1344, 5040, 13440, 20160, 1, 8, 63, 432, 2520, 12096, 45360, 120960, 181440, 1, 9, 80, 630, 4320, ...
[ "nonn", "tabl" ]
A312421
[ 1, 4, 8, 14, 18, 21, 25, 31, 37, 41, 42, 49, 50, 60, 64, 67, 70, 72, 79, 87, 93, 87, 100, 95, 110, 116, 114, 119, 121, 126, 138, 143, 133, 151, 140, 161, 166, 163, 166, 170, 175, 188, 194, 177, 203, 185, 212, 217, 210, ...
[ "nonn" ]
A370046
[ 1, 2, 3, 6, 4, 8, 12, 9, 5, 18, 17, 10, 7, 19, 14, 16, 11, 20, 13, 24, 22, 15, 32, 36, 34, 25, 23, 37, 27, 21, 26, 64, 69, 40, 43, 29, 30, 35, 39, 44, 28, 42, 53, 129, 72, 38, 31, 81, 45, 50, 46, 47, 49, 74, ...
[ "nonn", "base" ]
A129387
[ 0, 1, 15, 23, 27, 99, 399, 743, 2285, 2683, 13607, 18675, 27299, 66527, 108899, 242087, 504867, 1985907, 2179519, 7883069, 11798723, 20372799, 29842275, 49022007, 70621263, 91817907 ]
[ "nonn", "more" ]
A222642
[ 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 15, 16, ...
[ "nonn" ]
A147376
[ 1, 1, 1, 1, 9, 29, 109, 573, 4463, 53751, 903115, 18601177, 480082809, 16926813155 ]
[ "nonn" ]
A319575
[ 0, 2, 4, 6, 24, 90, 252, 574, 1136, 2034, 3380, 5302, 7944, 11466, 16044, 21870, 29152, 38114, 48996, 62054, 77560, 95802, 117084, 141726, 170064, 202450, 239252, 280854, 327656, 380074, 438540, 503502, 575424, 654786, 742084, 837830, 942552, ...
[ "nonn", "easy" ]
A079119
[ 1, 2, 7, 13, 31, 76, 185, 451, 1101, 2687, 6569, 16075, 39384, 96594, 237159, 582883, 1434067, 3531851, 8707217, 21488269, 53084814, 131276885, 324981011, 805345637, 1997855718, 4961422706, 12334208641, 30695995780, 76475032893 ]
[ "nonn" ]
A211778
[ 8, 12, 32, 80, 81, 128, 189, 196, 324, 336, 448, 512, 576, 768, 1600, 1936, 2025, 2048, 2187, 2500, 5292, 5324, 5616, 5780, 8192, 8748, 9477, 11264, 12096, 13520, 14400, 14800, 15552, 15625, 20736, 32768, 35721, 36864, 49152, 53248, 590...
[ "nonn" ]
A299146
[ 1, 1, 1, 1, 3, 1, 1, 6, 6, 1, 1, 10, 15, 10, 1, 1, 15, 29, 29, 15, 1, 1, 21, 49, 63, 49, 21, 1, 1, 28, 76, 118, 118, 76, 28, 1, 1, 36, 111, 201, 243, 201, 111, 36, 1, 1, 45, 155, 320, 452, 452, 320, 155, 45, ...
[ "nonn", "tabl", "easy" ]
A376776
[ 2, 3, 5, 7, 21, 44, 13, 14, 49, 38, 50, 77, 96, 68, 78, 81, 83, 138, 401, 113, 149, 39, 181, 15, 1646, 43, 110, 161, 10, 153, 364, 162, 432, 1679, 471, 451, 1683, 425, 1691, 1615, 13649 ]
[ "nonn", "more" ]
A181213
[ 2, 16, 400, 28561, 7133488, 5037592576, 11494250657760, 81903288018125020, 1.7740955604405277e+21, 1.2056088372904073e+26, 2.5387802734116843e+31, 1.652394189372902e+37 ]
[ "nonn" ]
A274924
[ 1, 2, 4, 8, 11, 12, 16, 9, 19, 24, 22, 18, 27, 26, 21, 37, 43, 39, 40, 49, 28, 29, 32, 46, 55, 60, 45, 48, 66, 73, 70, 76, 83, 77, 65, 75, 42, 62, 94, 96, 101, 103, 67, 63, 112, 80, 113, 58, 107, 64, 108, 120, 10...
[ "nonn" ]
A030988
[ 5, 25, 125, 8125, 78125, 578125, 2578125, 42578125, 642578125, 3642578125, 83642578125, 983642578125, 1983642578125, 51983642578125, 251983642578125, 1251983642578125, 51251983642578130 ]
[ "nonn", "base" ]
A082999
[ 1, 1, 4, 1, 4, 0, 4, 0, 4, 0, 4, 1, 4, 1, 1, 1, 1, 4, 1, 4, 0, 4, 0, 4, 0, 4, 1, 4, 1, 1, 1, 1, 4, 1, 4, 0, 4, 0, 4, 0, 4, 1, 4, 1, 1, 1, 1, 4, 1, 4, 0, 4, 0, 4, 0, 4, 1, 4, 1, 1, 1, 1, 4, 1...
[ "nonn" ]
A332604
[ 1, 2, 1, 3, 1, 2, 3, 1, 3, 2, 1, 2, 3, 1, 2, 1, 3, 1, 2, 3, 1, 3, 2, 3, 1, 2, 1, 3, 1, 2, 3, 2, 1, 2, 3, 1, 2, 1, 3, 1, 2, 3, 1, 3, 2, 1, 2, 3, 1, 2, 1, 3, 1, 2, 3, 2, 1, 2, 3, 1, 2, 1, 3, 2...
[ "nonn" ]
A356626
[ 1, 2, 4, 7, 15, 29, 61, 125, 249, 497, 1009, 2033, 4081, 8177, 16369, 32753, 65521, 131057, 262081, 524225, 1048513, 2097089, 4194241, 8388545, 16777153, 33553921, 67108353, 134217217, 268434945, 536870401, 1073741313, 2147483137, 4294966785, 8589934...
[ "nonn" ]
A104305
[ 1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 8, 7, 9, 9, 10, 10, 9, 9, 12, 12, 12, 13, 11, 12, 14, 15, 15, 16, 14, 15, 7, 18, 18, 19, 17, 18, 16, 7, 21, 22, 22, 21, 20, 21, 20, 25, 25, 25, 26, 25, 24, 25,...
[ "nonn" ]
A312346
[ 1, 4, 8, 14, 17, 21, 24, 29, 35, 39, 44, 45, 50, 56, 59, 66, 67, 72, 77, 79, 87, 87, 95, 100, 100, 108, 107, 116, 122, 122, 130, 127, 137, 143, 142, 153, 149, 159, 164, 162, 174, 170, 182, 186, 182, 195, 190, 203, 209, ...
[ "nonn" ]
A167915
[ 5, 17, 19, 29, 31, 41, 43, 53, 67, 71, 79, 89, 97, 101, 103, 109, 113, 127, 131, 137, 139, 149, 151, 163, 173, 181, 191, 197, 199, 211, 223, 229, 233, 239, 241, 251, 257, 269, 271, 281, 283, 293, 307, 311, 317, 331, 337, 3...
[ "nonn" ]
A040155
[ 12, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1,...
[ "nonn", "cofr", "easy", "mult" ]
A026178
[ 1, 3, 4, 2, 7, 9, 10, 12, 13, 5, 16, 6, 19, 21, 22, 8, 25, 27, 28, 30, 31, 11, 34, 36, 37, 39, 40, 14, 43, 15, 46, 48, 49, 17, 52, 18, 55, 57, 58, 20, 61, 63, 64, 66, 67, 23, 70, 24, 73, 75, 76, 26, 79, 81, 8...
[ "nonn" ]
A276314
[ 1, 1, 5, 20, 104, 546, 3066, 17655, 104555, 630773, 3867617, 24020932, 150827740, 955808680, 6105327912, 39268000188, 254093573088, 1652984379150, 10804631902350, 70925539707330, 467373389649870, 3090558380977020, 20501504119375500, 136392970090612940 ]
[ "nonn", "easy" ]
A205772
[ 1, 2, 10, 50, 290, 1766, 11442, 76522, 526574, 3697722, 26403186, 191072922, 1398344838, 10330855286, 76945148882, 577135722754, 4355579825058, 33050011129198, 251996066644866, 1929712025078322, 14834772898730766, 114445491235869780 ]
[ "nonn" ]
A122464
[ 4, 50, 134850, 116026275, 138982583000, 1348770149848002 ]
[ "hard", "more", "nonn" ]
A056497
[ 6, 15, 30, 105, 210, 705, 1290, 4410, 7740, 26985, 46650, 162435, 279930, 978465, 1679370, 5874120, 10077690, 35263440, 60466170, 211604295, 362795730, 1269743025, 2176782330, 7618570470, 13060693800 ]
[ "nonn" ]
A231417
[ 28486, 8704406, 2655479347, 811353885448, 248018799189236, 75819176620141000, 23178359868994050000, 7.085768089483888e+21, 2.1661643836657637e+24, 6.622102650837036e+26, 2.0244190379271628e+29 ]
[ "nonn" ]
A319619
[ 1, 1, 3, 3, 6, 4, 15, 13, 48, 96, 280 ]
[ "nonn", "more" ]
A129776
[ 1, 1, 2, 6, 21, 78, 298, 1157, 4535, 17872, 70644, 279704, 1108462, 4395045, 17431206, 69144643, 274300461, 1088215370, 4317321235, 17128527716, 67956202025, 269612504850, 1069675361622, 4243893926396, 16837490364983, 66802139457897, 265035151393777 ]
[ "nonn" ]
A097783
[ 1, 12, 131, 1429, 15588, 170039, 1854841, 20233212, 220710491, 2407582189, 26262693588, 286482047279, 3125039826481, 34088956044012, 371853476657651, 4056299287190149, 44247438682433980, 482665526219583740, 5265073349732987000, 57433141320843270000 ]
[ "nonn", "easy" ]
A171143
[ 13, 20, 27, 34, 41, 42, 43, 44, 45, 46, 47, 48, 55, 104, 111, 153, 160, 167, 202, 209, 216, 223, 251, 258, 265, 272, 279, 295, 296, 297, 298, 299, 300, 303, 304, 305, 306, 307, 311, 312, 313, 314, 319, 320, 321, 327, 328, ...
[ "nonn", "base" ]
A278626
[ 504, 103546, 24103803, 6594175430, 1892563134910, 540194658701142, 152561415660718530, 42854095125044270000, 1.19098036166054e+22, 3.223604568067184e+24, 8.354308348909065e+26 ]
[ "nonn" ]
A114739
[ 1, 9, 4, 5, 6, 7, 8, 17, 19, 11, 12, 13, 14, 29, 31, 17, 18, 19, 20, 41, 43, 23, 24, 73, 101, 53, 109, 29, 30, 31, 32, 97, 67, 103, 71, 37, 38, 191, 79, 41, 42, 43, 44, 89, 181, 47, 48, 97, 197, 101, 103, 53, 54,...
[ "nonn", "less" ]
A378803
[ 0, 4, 112, 1980, 29120, 387600, 4845456, 58017960, 673171200, 7625605680, 84766052800, 927990034972, 10032268963392, 107317291572400, 1137727464904800, 11968670068362000, 125062895892372480, 1299098807032012300, 13423997084049035000, 138068403550647830000, 1.4141264568848697e...
[ "nonn", "easy" ]
A299935
[ 5, 888, 43375, 1858165, 82403876, 3664429516, 162678451993, 7222553677769, 320673103163046, 14237519973916088, 632129375743496700, 28065811608213510000, 1.2460895083811821e+21, 5.5324930291331204e+22 ]
[ "nonn" ]
A137333
[ 3, 4, 6, 12, 36, 42, 48, 192, 294, 324, 768, 2058, 2916, 3072, 12288, 14406, 26244, 49152, 100842, 196608, 236196, 705894, 786432, 2125764, 3145728, 4941258, 12582912, 19131876, 34588806, 50331648, 172186884, 201326592, 242121642, 805306368, 154968...
[ "nonn", "uned" ]
A217030
[ 237, 427, 1027, 1101, 1661, 2723, 2747, 3173, 3295, 3669, 3849, 3873, 3963, 4087, 4227, 4237, 4667, 4717, 4897, 5007, 5017, 5277, 5837, 6145, 6249, 6445, 6697, 6757, 6787, 6943, 7483, 8373, 9169, 9183, 9543, 9673, 9691, 9903, 10063, 10135...
[ "nonn" ]
A195181
[ 0, 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 9, 10, 11, 12, 13, 13, 14, 15, 16, 17, 17, 18, 19, 20, 21, 21, 22, 23, 24, 25, 25, 26, 27, 28, 29, 29, 30, 31, 32, 33, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 41, 42, 43, 44, ...
[ "nonn", "easy" ]
A044114
[ 12, 48, 72, 84, 120, 156, 192, 228, 264, 288, 300, 336, 372, 408, 432, 480, 504, 516, 552, 588, 624, 660, 696, 720, 732, 768, 804, 840, 876, 912, 936, 948, 984, 1020, 1056, 1092, 1128, 1152, 1164, 1200, 1236, 1272, 1308, 1344 ]
[ "nonn", "base" ]
A127603
[ 1, 1, 1, 2, 3, 5, 8, 14, 24, 43, 76, 139, 259, 485, 922, 1787, 3526, 6996, 14100, 28692, 58656, 121503, 253767, 536209, 1149378, 2480370, 5370187, 11700921, 25573556, 56230361, 126067989, 284107943, 645064989, 1468157354, 3380417306 ]
[ "nonn" ]
A110174
[ 0, 0, 2, 1, 0, 0, 0, 1, 2, 2, 0, 1, 0, 4, 4, 1, 0, 2, 0, 5, 4, 4, 0, 3, 4, 4, 4, 7, 0, 0, 0, 1, 6, 2, 2, 3, 0, 6, 2, 7, 0, 2, 0, 9, 6, 4, 0, 3, 0, 4, 6, 9, 0, 4, 2, 9, 4, 2, 0, 1, 0, 4, 4, 1...
[ "nonn", "look" ]
A217844
[ 0, 1, 16, 17, 81, 97, 98, 256, 337, 353, 354, 625, 881, 962, 978, 979, 1296, 1921, 2177, 2258, 2274, 2275, 2401, 3697, 4096, 4322, 4578, 4659, 4675, 4676, 6497, 6561, 7793, 8418, 8674, 8755, 8771, 8772, 10000, 10657, 13058, 14354, 1...
[ "nonn" ]
A374012
[ 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, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 5...
[ "nonn", "look" ]
A103693
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 1, 3, 2, 4, 3, 5, 4, 6, 5, 7, 6, 8, 7, 9, 8, 10, 9, 2, 1, 10, 3, 2, 2, 1, 4, 3, 3, 2, 5, 4, 4, 3, 6, 5, 5, 4, 7, 6, 6, 5, 8, 7, 7, 6, 9, 8, 8, 7, 10, 9, 9,...
[ "base", "nonn" ]
A352337
[ 1, 2, 3, 4, 5, 8, 9, 10, 11, 14, 16, 17, 21, 22, 23, 26, 27, 32, 34, 35, 38, 39, 44, 55, 57, 58, 59, 63, 64, 68, 74, 75, 77, 82, 83, 92, 93, 94, 110, 116, 119, 122, 125, 128, 129, 130, 131, 134, 136, 137, 142, 145,...
[ "nonn" ]
A316714
[ 1, 2, 3, 2, 4, 3, 3, 5, 4, 4, 3, 4, 3, 6, 5, 5, 4, 5, 4, 4, 5, 4, 4, 3, 7, 6, 6, 5, 6, 5, 5, 6, 5, 5, 4, 5, 4, 6, 5, 5, 4, 5, 4, 4, 8, 7, 7, 6, 7, 6, 6, 7, 6, 6, 5, 6, 5, 7, 6, 6, 5, 6, 5, 5...
[ "nonn", "base", "easy" ]
A130851
[ 1, 1, 2, 5, 5, 6, 6, 6, 8, 2, 2, 7, 4, 4, 0, 0, 0, 6, 6, 6, 3, 3, 3, 0, 0, 0, 8, 2, 2, 4, 1, 1, 3, 3, 3, 1, 7, 7, 2, 5, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 6, 6, 3, 3, 3, 0, 0, 0, 3, 3...
[ "nonn", "easy", "base" ]
A310362
[ 1, 4, 10, 14, 16, 26, 30, 32, 34, 48, 48, 50, 54, 68, 66, 68, 76, 88, 82, 88, 96, 106, 100, 110, 116, 122, 120, 132, 132, 140, 142, 152, 148, 160, 164, 168, 166, 184, 182, 184, 186, 206, 198, 202, 210, 224, 214, 224, 230...
[ "nonn" ]
A290709
[ 4, 22, 49, 94, 169, 298, 529, 958, 1777, 3370, 6505, 12718, 25081, 49738, 98977, 197374, 394081, 787402, 1573945, 3146926, 6292777, 12584362, 25167409, 50333374, 100665169, 201328618, 402655369, 805308718, 1610615257, 3221228170, 6442453825, 12884904958 ...
[ "nonn" ]
A315683
[ 1, 6, 12, 17, 22, 27, 32, 37, 42, 47, 52, 58, 64, 70, 76, 81, 86, 91, 96, 101, 106, 111, 116, 122, 128, 134, 140, 145, 150, 155, 160, 165, 170, 175, 180, 186, 192, 198, 204, 209, 214, 219, 224, 229, 234, 239, 244, 250, 2...
[ "nonn" ]
A378847
[ 1, 3, 15, 13, 9, 37, 25, 33, 45, 57, 145, 97, 65, 87, 159, 165, 225, 273, 391, 261, 647, 465, 741, 529, 353, 471, 921, 837, 865, 577, 385, 257, 343, 229, 153, 407, 543, 721, 481, 321, 855, 1141, 761, 1015, 677, 903, 1209, ...
[ "nonn" ]
A055296
[ 1, 4, 20, 83, 318, 1095, 3495, 10292, 28389, 73586, 180663, 421949, 942537, 2021060, 4176507, 8342823, 16157071, 30410396, 55755744, 99773709, 174579270, 299163528, 502804996, 829905792, 1346834873, 2151396469 ]
[ "nonn" ]
A318988
[ 24, 80, 256, 880, 3840, 8096, 96768, 380160, 552960, 2336256, 6209280, 7600320, 7741440, 10579968, 25090560, 32845824, 34031616, 34594560, 35610624 ]
[ "nonn" ]
A219976
[ 1, 2, 2, 6, 6, 6, 1, 3, 3, 1, 30, 30, 30, 30, 30, 1, 15, 15, 15, 15, 1, 42, 42, 210, 210, 210, 42, 42, 1, 21, 21, 105, 105, 21, 21, 1, 30, 30, 210, 210, 210, 210, 210, 30, 30, 1, 15, 15, 105, 105, 105, 105, 15, ...
[ "nonn", "tabl", "less" ]
A361434
[ 1, 4, 11, 18, 59, 108, 187, 198, 274, 335, 338, 374, 381, 387, 433, 815, 848, 1495, 1629, 2002, 3554, 3565, 4112, 4318, 4569, 4592, 4613, 4618, 4643, 4727, 4733, 6103, 6118, 7074, 7153, 7319, 7521, 7562, 7567, 7684, 7748, 7757, 7764...
[ "nonn", "base" ]
A075030
[ 113, 1327, 2557, 2803, 2971, 3271, 3469, 4027, 4297, 4523, 5119, 5449, 5531, 5591, 7253, 7883, 8389, 9013, 9439, 9551, 10111, 10909, 11177, 11839, 12119, 12163, 12853, 12923, 13187, 13339, 13729, 13933, 14563, 15683, 15823, 16073, 16141 ]
[ "nonn" ]
A058636
[ 1, 0, -1, 1, -1, 0, 2, -1, -1, 3, -2, -2, 5, -2, -3, 6, -4, -4, 9, -5, -7, 12, -7, -7, 18, -9, -10, 22, -13, -14, 31, -16, -18, 39, -22, -24, 53, -28, -31, 66, -37, -38, 87, -46, -51, 108, -59, -64, 138, -74, -80, ...
[ "sign" ]
A034601
[ 1, 0, 1512, 301056, 12484584, 230694912, 2429885472, 18309722112, 102280003560, 480352911360, 1860467600880, 6523976632320, 19905705026592, 57236239097856, 147668005952064, 367785139212288 ]
[ "nonn" ]
A204827
[ 3, 5, 7, 10, 11, 13, 14, 15, 17, 19, 21, 22, 23, 26, 27, 29, 31, 33, 34, 35, 37, 38, 39, 41, 43, 44, 45, 46, 47, 51, 52, 53, 55, 57, 58, 59, 61, 62, 63, 65, 67, 68, 69, 71, 73, 74, 75, 76, 77, 79, 82, 83, 85, 8...
[ "nonn" ]
A373142
[ 3, 4, 5, 7, 11, 13, 17, 19, 23, 27, 29, 31, 36, 37, 41, 43, 45, 47, 48, 53, 59, 60, 61, 63, 64, 67, 71, 73, 75, 79, 80, 83, 84, 89, 97, 99, 100, 101, 103, 105, 107, 109, 112, 113, 117, 125, 127, 131, 132, 137, 139, ...
[ "nonn" ]
A266692
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 1, 3, 2, 4, 5, 7, 7, 14, 13, 18, 25, 29, 35, 47, 54, 65, 86, 101, 120, 147, 174, 205, 254, 291, 347, 419, 486, 565, 676, 779, 908, 1065, 1228, 1425, 1668, 1906, 2198, 2547, 2912, 3336...
[ "nonn" ]
A093198
[ 1, 11, 53, 164, 397, 819, 1513, 2576, 4121, 6275, 9181, 12996, 17893, 24059, 31697, 41024, 52273, 65691, 81541, 100100, 121661, 146531, 175033, 207504, 244297, 285779, 332333, 384356, 442261, 506475, 577441, 655616, 741473, 835499 ]
[ "nonn", "easy" ]
A295205
[ 1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 8, 4, 1, 1, 6, 14, 14, 6, 1, 1, 9, 25, 42, 25, 9, 1, 1, 13, 53, 108, 108, 53, 13, 1, 1, 19, 111, 284, 438, 284, 111, 19, 1, 1, 28, 217, 777, 1597, 1597, 777, 217, 28, 1, ...
[ "nonn", "tabl" ]
A059016
[ 1, 0, 0, 1, 0, 1, 3, 1, 2, 4, 1, 3, 6, 3, 3, 6, 2, 4, 8, 8, 5, 8, 7, 4, 10, 11, 8, 7, 8, 7, 12, 10, 13, 9, 11, 13, 12, 11, 16, 14, 11, 11, 14, 13, 12, 16, 10, 19, 21, 15, 16, 18, 18, 19, 21, 16, 17, 23,...
[ "nonn", "base" ]
A377240
[ 1, 3, 0, 45, 108, 1782, 8424, 94527, 596322, 5765904, 41921874, 379715688, 2974945482, 26175549087, 213735748383, 1857916476288, 15539695570341, 134524740926700, 1141825482025200, 9881043227641252, 84668712937125630, 733670610133591800, 6327618171676167000 ]
[ "nonn" ]
A045292
[ 7874, 8074, 8114, 8122, 9074, 9114, 9122, 9314, 9322, 9362, 14074, 14114, 14122, 14314, 14322, 14362, 15314, 15322, 15362, 15562, 23499, 23699, 23739, 23747, 24699, 24739, 24747, 24939, 24947, 24987, 29699, 29739 ]
[ "nonn", "base" ]
A180959
[ 1, 1, 1, 1, 3, 1, 1, 6, 6, 1, 1, 10, 23, 10, 1, 1, 15, 65, 65, 15, 1, 1, 21, 150, 321, 150, 21, 1, 1, 28, 301, 1197, 1197, 301, 28, 1, 1, 36, 546, 3584, 7531, 3584, 546, 36, 1, 1, 45, 918, 9114, 35523, 35523, 9114,...
[ "easy", "nonn", "tabl" ]
A201300
[ 5, 1949, 158189, 197573, 493853, 1265477, 7475261, 10123781, 16342637, 17159621, 23652653, 31606277, 41168669, 47412221, 63700997, 67765829, 78676349, 80990213, 118298309, 121331453, 189221189, 252850181, 278632301, 300476237, 335337341 ]
[ "nonn", "easy" ]
A221573
[ 0, 0, 2, 0, 5, 2, 0, 10, 9, 4, 0, 17, 26, 25, 6, 0, 26, 59, 100, 57, 10, 0, 37, 114, 289, 342, 141, 16, 0, 50, 197, 676, 1293, 1210, 345, 26, 0, 65, 314, 1369, 3734, 5913, 4240, 853, 42, 0, 82, 471, 2500, 8991, 20944...
[ "nonn", "tabl" ]
A168392
[ 5, 5, 13, 13, 21, 21, 29, 29, 37, 37, 45, 45, 53, 53, 61, 61, 69, 69, 77, 77, 85, 85, 93, 93, 101, 101, 109, 109, 117, 117, 125, 125, 133, 133, 141, 141, 149, 149, 157, 157, 165, 165, 173, 173, 181, 181, 189, 189, 197, ...
[ "nonn", "easy" ]
A177423
[ 753, 5043, 25779, 213003, 1687623, 18171219, 73344977, 769993485, 4480470831, 17582325855, 69524390079, 276487733631, 1102731281151, 4404485817855, 17605064657919, 70394501404671, 281526491164671, 1126002935750655 ]
[ "nonn", "easy" ]
A296015
[ 4, 28, 91, 366, 1644, 6545, 26865, 112345, 461363, 1902251, 7867396, 32451301, 133919803, 552939041, 2282127828, 9419468870, 38881999590, 160489339983, 662439317422, 2734335195143, 11286359484536, 46586079223617 ]
[ "nonn" ]
A172948
[ 1, 8953, 176703337, 5158851352489, 190172119451839800, 8.184214105554904e+21, 3.9327760270757546e+26, 2.052423114527959e+31, 1.1417931313727489e+36 ]
[ "nonn" ]
A091869
[ 1, 1, 1, 2, 2, 1, 4, 6, 3, 1, 9, 16, 12, 4, 1, 21, 45, 40, 20, 5, 1, 51, 126, 135, 80, 30, 6, 1, 127, 357, 441, 315, 140, 42, 7, 1, 323, 1016, 1428, 1176, 630, 224, 56, 8, 1, 835, 2907, 4572, 4284, 2646, 1134, 336,...
[ "nonn", "tabl" ]
A353592
[ 0, 1, 2, 6, 3, 9, 4, 12, 5, 16, 7, 19, 8, 23, 10, 26, 11, 30, 13, 33, 14, 36, 15, 40, 17, 43, 18, 47, 20, 50, 21, 53, 22, 57, 24, 60, 25, 64, 27, 67, 28, 70, 29, 74, 31, 77, 32, 81, 34, 84, 35, 88, 37, 91, 38...
[ "nonn" ]
A143926
[ 1, 1, 1, 1, 2, 3, 7, 11, 28, 46, 123, 207, 572, 979, 2769, 4797, 13806, 24138, 70414, 123998, 365636, 647615, 1926505, 3428493, 10273870, 18356714, 55349155, 99229015, 300783420, 540807165, 1646828655, 2968468275, 9075674700 ]
[ "nonn" ]
A136572
[ 1, 0, 1, 0, 0, 2, 0, 0, 0, 6, 0, 0, 0, 0, 24, 0, 0, 0, 0, 0, 120, 0, 0, 0, 0, 0, 0, 720, 0, 0, 0, 0, 0, 0, 0, 5040, 0, 0, 0, 0, 0, 0, 0, 0, 40320, 0, 0, 0, 0, 0, 0, 0, 0, 0, 362880, 0, 0, 0, 0, 0, ...
[ "nonn", "tabl" ]
A347069
[ 1, 2, 1, 4, 2, 1, 5, 4, 2, 1, 6, 5, 4, 2, 1, 8, 6, 5, 4, 2, 1, 9, 8, 6, 5, 4, 2, 1, 10, 9, 8, 6, 5, 4, 2, 1, 12, 11, 9, 8, 6, 5, 4, 2, 1, 13, 13, 11, 9, 8, 6, 5, 4, 2, 1, 15, 14, 13, 11, 9, 8, 6...
[ "nonn", "tabl" ]
A310318
[ 1, 3, 9, 12, 12, 18, 24, 24, 24, 36, 42, 36, 42, 51, 57, 48, 63, 69, 66, 66, 78, 81, 78, 87, 96, 90, 96, 99, 111, 102, 117, 117, 120, 120, 132, 129, 132, 141, 150, 138, 150, 153, 165, 150, 171, 171, 174, 168, 186, 183 ...
[ "nonn" ]
A353715
[ 1, 3, 6, 12, 11, 19, 28, 44, 49, 23, 46, 104, 69, 15, 58, 113, 79, 142, 161, 51, 86, 77, 43, 54, 92, 107, 167, 156, 90, 102, 61, 155, 226, 109, 157, 242, 354, 277, 63, 234, 449, 279, 126, 233, 387, 286, 125, 481, 410, ...
[ "base", "nonn" ]
A307990
[ 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 1, 2, 0, 1, 1, 2, 1, 2, 0, 2, 1, 2, 0, 2, 0, 2, 1, 2, 1, 3, 0, 3, 0, 1, 1, 3, 0, 3, 1, 3, 1, 3, 0, 5, 1, 4, 0, 2, 0, 5, 1, 3, 0, 3, 0, 5, 1, 2, 1, 5...
[ "nonn", "easy" ]
A024596
[ 0, 1, 3, 2, 4, 3, 6, 11, 19, 18, 30, 29, 48, 45, 74, 66, 108, 87, 142, 230, 373, 372, 603, 600, 972, 964, 1561, 1540, 2493, 2438, 3946, 3802, 6153, 5776, 9346, 8358, 13525, 10939, 17701, 28642, 46345, 46332, 74968, 74934, 121247...
[ "nonn" ]
A032998
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 16, 17, 18, 19, 27, 28, 29, 38, 39, 49, 50, 60, 61, 70, 71, 72, 80, 81, 82, 83, 90, 91, 92, 93, 94, 160, 161, 170, 171, 172, 180, 181, 182, 183, 190, 191, 192, 193, 194, 270, 271, 272, 28...
[ "nonn", "base" ]
A275198
[ 1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 5, 10, 10, 5, 1, 1, 6, 1, 6, 1, 6, 1, 1, 7, 7, 7, 7, 7, 7, 1, 1, 8, 0, 0, 0, 0, 0, 8, 1, 1, 9, 8, 0, 0, 0, 0, 8, 9, 1, 1, 10, 3, 8, 0, 0, 0, 8, ...
[ "nonn", "tabl" ]
A166973
[ 1, 1, 1, 1, 7, 1, 1, 43, 18, 1, 1, 259, 241, 34, 1, 1, 1555, 2910, 785, 55, 1, 1, 9331, 33565, 15470, 1940, 81, 1, 1, 55987, 378546, 281085, 56210, 4046, 112, 1, 1, 335923, 4219993, 4875906, 1461495, 161406, 7518, 148, 1, 1, ...
[ "nonn", "easy", "tabl" ]
A165891
[ 1, 1, 2, 1, 1, 6, 10, 6, 1, 1, 14, 47, 68, 47, 14, 1, 1, 30, 176, 450, 606, 450, 176, 30, 1, 1, 62, 597, 2392, 5162, 6612, 5162, 2392, 597, 62, 1, 1, 126, 1926, 11382, 35967, 69132, 85492, 69132, 35967, 11382, 1926, 126, ...
[ "nonn", "tabf" ]
A037619
[ 2, 10, 53, 267, 1335, 6678, 33392, 166960, 834803, 4174017, 20870085, 104350428, 521752142, 2608760710, 13043803553, 65219017767, 326095088835, 1630475444178, 8152377220892, 40761886104460, 203809430522303, 1019047152611517 ]
[ "nonn", "base", "easy" ]
A317105
[ 0, 26, 12, 4, 10, 6, 14, 8, 18, 2, 16, 32, 54, 84, 24, 28, 50, 46, 20, 38, 62, 94, 56, 86, 124, 48, 22, 40, 66, 34, 58, 88, 52, 30, 60, 36, 68, 42, 76, 112, 70, 44, 72, 106, 148, 100, 140, 188, 134, 180, 128, 90, ...
[ "nonn", "fini", "full" ]
A318117
[ 1, 1, 3, 10, 35, 126, 462, 1716, 6435, 24310, 92378, 352705, 1351934, 5199117, 20050460, 77512860, 300292131, 1165534689, 4531337778, 17642948675, 68785126410, 268497991905, 1049210943531, 4104103226699, 16068342973950, 62963565243876, 246913415221671 ]
[ "nonn" ]
A270771
[ 877, 5894, 40338, 283625, 2057641, 15433189, 119762455, 961547874, 7984210898, 68521246341, 607314230475, 5554296859153, 52371126544185, 508651182043282, 5084366849258598, 52260701351731700, 551924896479043100, 5984245105527718000, 66563423916839220000 ]
[ "nonn" ]
A328800
[ 1, -1, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 1, -1, 0, 0, 1, -1, 0, 0, 1, -1, 0, 0, 2, -2, 0, 0, 1, -2, 0, 0, 2, -2, 0, 0, 3, -3, 0, 0, 3, -3, 0, 0, 3, -3, 0, 0, 5, -5, 0, 0, 4, -5, 0, 0, 6, -5, 0, 0, 7,...
[ "sign" ]
A374004
[ 7, 14, 18, 25, 33, 40, 52, 59, 75, 82, 102, 109, 133, 140, 168, 175, 207, 214, 250, 257, 297, 304, 348, 355, 403, 410, 462, 469, 525, 532, 592, 599, 663, 670, 738, 745, 817, 824, 900, 907, 987, 994, 1078, 1085, 1173, 1180, 1...
[ "nonn", "easy" ]
A358272
[ 1, -1, -1, 4, -1, 1, -1, -4, 9, 1, -1, -4, -1, 1, 1, 16, -1, -9, -1, -4, 1, 1, -1, 4, 25, 1, -9, -4, -1, -1, -1, -16, 1, 1, 1, 36, -1, 1, 1, 4, -1, -1, -1, -4, -9, 1, -1, -16, 49, -25, 1, -4, -1, 9, 1, 4, ...
[ "sign", "easy", "mult", "changed" ]
A111463
[ 11, 113, 311, 11311, 113111, 11131111, 11113111, 1113111107, 7011113111, 111311110717, 717011113111, 111311110717, 71701111311131, 1311131111071703, 307170111131113150, 32131113111107170000, 9.030717011113112e+21 ]
[ "base", "nonn" ]