id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A281528
[ 0, 0, 0, 0, 0, 5, 0, 7, 0, 7, 0, 5, 10, 11, 11, 5, 13, 7, 13, 13, 14, 5, 17, 7, 10, 11, 17, 8, 19, 7, 13, 13, 10, 11, 23, 5, 11, 11, 17, 9, 25, 5, 17, 13, 10, 5, 29, 9, 14, 11, 19, 5, 22, 13, 17, 13, 11, ...
[ "nonn" ]
A116841
[ 1, 2, 6, 21, 75, 258, 842, 2614, 7787, 22466, 63273, 175044, 477897, 1291997, 3467411, 9254394, 24595834, 65158141, 172181087, 454099591, 1195773446, 3144999057, 8263735626, 21697177681, 56933687000, 149323655848 ]
[ "nonn", "easy" ]
A251836
[ 678, 3354, 3354, 18124, 27554, 18124, 97316, 262404, 262404, 97316, 518514, 2298772, 4182084, 2298772, 518514, 2764828, 20314774, 60982362, 60982362, 20314774, 2764828, 14778068, 182241310, 909331750, 1464435968, 909331750 ]
[ "nonn", "tabl" ]
A326931
[ 25984, 51159, 8224, 31440, 8224, 31440, 8224, 110081, 131178, 92879, 69289, 59225, 62391, 10042, 66686, 73825, 36212, 123343, 158628, 28616, 74166, 98142, 59386, 50028, 42525, 15828, 7092, 27981, 57726, 27313, 52761, 15586, 47169, 17233, 152620, ...
[ "nonn" ]
A365159
[ 1, 2, 3, 2, 2, 3, 4, 4, 3, 6, 4, 6, 8, 5, 9, 10, 11, 12, 13, 13, 11, 11, 13, 13, 15, 15, 16, 17, 18, 19, 20, 20, 21, 22, 23, 24, 25, 26, 26, 18, 26, 29, 20, 23, 24, 25, 26, 27, 28, 29, 29, 28, 31, 29, 28, 2...
[ "nonn" ]
A117048
[ 2, 7, 11, 13, 29, 31, 37, 43, 61, 67, 73, 79, 83, 97, 101, 127, 137, 139, 151, 157, 163, 181, 191, 193, 199, 211, 227, 241, 263, 277, 281, 307, 331, 353, 367, 373, 379, 389, 409, 421, 433, 443, 461, 463, 487, 499, 541, 571...
[ "easy", "nonn" ]
A245225
[ 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2...
[ "nonn", "cofr", "easy" ]
A160467
[ 1, 1, 1, 2, 1, 1, 1, 4, 1, 1, 1, 2, 1, 1, 1, 8, 1, 1, 1, 2, 1, 1, 1, 4, 1, 1, 1, 2, 1, 1, 1, 16, 1, 1, 1, 2, 1, 1, 1, 4, 1, 1, 1, 2, 1, 1, 1, 8, 1, 1, 1, 2, 1, 1, 1, 4, 1, 1, 1, 2, 1, 1, 1, ...
[ "base", "easy", "nonn", "mult" ]
A192760
[ 0, 1, 4, 9, 18, 33, 58, 99, 166, 275, 452, 739, 1204, 1957, 3176, 5149, 8342, 13509, 21870, 35399, 57290, 92711, 150024, 242759, 392808, 635593, 1028428, 1664049, 2692506, 4356585, 7049122, 11405739, 18454894, 29860667, 48315596, 78176299 ]
[ "nonn", "easy" ]
A124199
[ 13, 19, 43, 53, 89, 103, 151, 229, 251, 349, 433, 463, 593, 701, 739, 859, 1033, 1223, 1429, 1483, 1709, 1889, 1951, 2143, 2699, 3001, 3079, 3319, 3739, 4003, 4093, 4463, 4751, 5563, 5669, 6553, 7019, 7873, 8513, 9043, 10009, 10151, ...
[ "easy", "nonn" ]
A031563
[ 4227, 4231, 4243, 4247, 4259, 4271, 4283, 4299, 4307, 4319, 4327, 4339, 4363, 4391, 4411, 4419, 4423, 4443, 4447, 4451, 4463, 4467, 4483, 4487, 16904, 16928, 16936, 16992, 17000, 17024, 17056, 17088, 17096, 17120, 17128, 17152, 17216, 17224, ...
[ "nonn" ]
A049546
[ 2, 7, 17, 23, 31, 41, 47, 73, 79, 89, 97, 103, 137, 151, 167, 191, 193, 199, 223, 233, 241, 257, 263, 271, 311, 313, 353, 359, 367, 383, 401, 409, 431, 433, 439, 457, 479, 487, 503, 521, 569, 577, 593, 599, 601, 607, 631, ...
[ "nonn", "easy" ]
A021166
[ 0, 0, 6, 1, 7, 2, 8, 3, 9, 5, 0, 6, 1, 7, 2, 8, 3, 9, 5, 0, 6, 1, 7, 2, 8, 3, 9, 5, 0, 6, 1, 7, 2, 8, 3, 9, 5, 0, 6, 1, 7, 2, 8, 3, 9, 5, 0, 6, 1, 7, 2, 8, 3, 9, 5, 0, 6, 1, 7, 2, 8, 3, 9, 5...
[ "nonn", "cons" ]
A186934
[ 144, 1664, 10496, 59720, 400192, 2504264, 16124472, 102475864, 654285152, 4168475512, 26600834384, 169634278408, 1082068348632, 6900437984584, 44011928616896, 280696997413664, 1790295379221024, 11418170020374768 ]
[ "nonn" ]
A128105
[ 3, 8, 21, 56, 150, 408, 1099, 2984, 8109, 22030, 59884, 162756, 442416, 1202614, 3269025, 8886112, 24154960, 65659986, 178482314, 485165200, 1318815750, 3584912848, 9744803461, 26489122152, 72004899350, 195729609452 ]
[ "nonn" ]
A133238
[ 1, 52, 1053, 12376, 100776, 627912, 3187041, 13748020, 51949755, 175847880, 542393670, 1544927904, 4107092288, 10278624864, 24388573014, 55188666312, 119696471453, 249869263644, 503865726155, 984563860280, 1869304764600, 3456658569000, 6238533257775 ]
[ "nonn" ]
A243749
[ 25, 35, 1147, 1159, 1189, 1343, 1711, 1943, 1961, 2911, 2923, 3713, 4171, 4183, 4189, 4331, 4717, 5329, 5917, 101263, 101461, 101617, 101659, 101887, 101911, 101971, 103127, 103223, 103277, 103283, 103331, 103373, 103463, 103487, 103601, 103709, ...
[ "nonn", "base" ]
A337800
[ 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 16, 18, 20, 24, 25, 27, 32, 36, 40, 48, 50, 54, 64, 72, 80, 81, 96, 100, 108, 125, 128, 144, 160, 162, 192, 200, 216, 243, 250, 256, 288, 320, 324, 384, 400, 432, 486, 500, 512, 576, 6...
[ "nonn", "easy" ]
A056805
[ 0, 1, 2, 8, 9, 15, 20, 26, 38, 45, 65, 112, 244, 303, 393, 560, 839, 1009, 1019, 1173, 1334, 2236, 2629, 4426, 8848, 20812, 37744, 72926, 86287, 231617, 281969, 488852, 522127, 655642, 758068, 879313, 1380098 ]
[ "more", "nonn" ]
A064887
[ 4, 2, 4, 2, 6, 4, 16, 4, 14, 4, 10, 4, 18, 28, 2, 8, 28, 14, 22, 4, 40, 10, 10, 4, 26, 18, 50, 24, 6, 2, 4, 20, 32, 28, 40, 16, 50, 30, 14, 4, 20, 40, 54, 18, 10, 14, 52, 8, 136, 22, 48, 20, 70, 54, 32, 44,...
[ "nonn" ]
A226284
[ 0, 0, 0, 0, 0, 36, 576, 9216, 115200, 1440000, 17280000, 207360000, 2540160000, 31116960000, 398297088000, 5098202726400, 68825736806400, 929147446886400, 13273534955520000, 189621927936000000, 2868031660032000000, 43378978857984000000, 694063661727744000000 ]
[ "nonn" ]
A167661
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 9, 9, 9, 9, 10, 11, 11, 12, 12, 13, 13, 13, 13, 14, 15, 15, ...
[ "nonn" ]
A072392
[ 21, 27, 37, 63, 270, 291, 397, 1545, 1853, 2991, 6102, 15503, 27036, 48776, 198683, 200882, 274536, 1061361, 2348128, 2723436, 2746836, 3542805, 3564217, 3868867, 3962197, 4438616, 19844683, 46676013, 69460293, 198444683, 202195682, 297828396, 30952065...
[ "base", "nonn" ]
A327143
[ 1, 2, 4, 3, 5, 7, 9, 6, 8, 2111110, 2000001, 11, 13, 15, 17, 20, 22, 24, 111111110, 210, 10, 11110, 101, 19, 21, 31, 33, 23, 35, 37, 39, 26, 28, 110, 211110, 12, 14, 103, 51, 2001, 25, 53, 27, 55, 57, 11112, 212, 40, 16,...
[ "base", "nonn" ]
A043654
[ 20881, 20882, 20883, 20884, 20885, 20886, 20887, 20888, 20889, 20890, 20891, 20904, 20905, 20907, 20908, 20909, 20910, 20911, 20912, 20913, 20914, 20915, 20916, 20917, 20918, 20920, 20921, 20922, 20923, 20924 ]
[ "nonn", "base" ]
A209234
[ 10, 110, 110111, 101110311, 101103210311131, 1.0120331031111312e+23, 1.0120321041131221e+35, 2.011031042103115e+50, 1.0120320431041141e+65 ]
[ "nonn", "base", "look" ]
A308232
[ 1, 11, 21, 31, 12, 41, 13, 51, 61, 22, 14, 71, 81, 23, 15, 91, 16, 101, 32, 42, 111, 24, 17, 121, 18, 131, 52, 33, 141, 25, 19, 151, 161, 26, 171, 10, 181, 43, 62, 34, 72, 191, 201, 211, 82, 44, 221, 27, 231, 92, 241...
[ "base", "nonn" ]
A050155
[ 1, 3, 1, 9, 5, 1, 28, 20, 7, 1, 90, 75, 35, 9, 1, 297, 275, 154, 54, 11, 1, 1001, 1001, 637, 273, 77, 13, 1, 3432, 3640, 2548, 1260, 440, 104, 15, 1, 11934, 13260, 9996, 5508, 2244, 663, 135, 17, 1, 41990, 48450, 38760, ...
[ "nonn", "tabl" ]
A198834
[ 0, 0, 2, 2, 4, 6, 10, 16, 26, 42, 68, 110, 178, 288, 466, 754, 1220, 1974, 3194, 5168, 8362, 13530, 21892, 35422, 57314, 92736, 150050, 242786, 392836, 635622, 1028458, 1664080, 2692538, 4356618, 7049156, 11405774, 18454930, 29860704, 48315...
[ "nonn", "easy" ]
A195597
[ 4, 3, 4, 1, 1, 1, 11, 2, 19, 1, 3, 1, 1, 1, 14, 1, 3, 5, 58, 3, 1, 10, 1, 1, 6, 5, 13, 127, 1, 1, 7, 13, 1, 2, 1, 2, 2, 1, 2, 2, 4, 2, 4, 1, 1, 6, 9, 3, 1, 16, 1, 3, 2, 32, 3, 1, 1, 2, 11, 1, 13, ...
[ "nonn", "cofr" ]
A045519
[ 87178291200, 8.841761993739702e+30, 8.222838654177922e+33, 8.683317618811886e+36 ]
[ "nonn", "base" ]
A132638
[ 4, 46656, 8916100448256, 1.048576e+26, 2.05891132094649e+44, 1.5013093754529656e+68 ]
[ "easy", "nonn" ]
A100366
[ 2, 5, 193, 613, 1124581, 52071301, 213536830501 ]
[ "nonn", "fini", "full" ]
A112930
[ 3, 4, 5, 7, 9, 10, 13, 14, 17, 19, 21, 25, 28, 30, 32, 34, 38, 39, 43, 46, 47, 51, 53, 57, 62, 63, 65, 68, 69, 72, 79, 82, 85, 87, 93, 94, 97, 101, 104, 106, 110, 111, 118, 119, 122, 123, 131, 140, 142, 143, 146, 1...
[ "nonn" ]
A118637
[ 1, 31, 43, 64, 76, 97, 109, 931, 169, 991, 229, 952, 289, 1012, 2131, 1342, 2461, 1672, 2791, 2002, 2032, 2332, 2362, 2662, 2692, 2992, 3022, 2233, 3352, 2563, 3682, 2893, 4012, 2134, 4342, 2464, 4672, 2794, 5002, 2035, 5332, 2365, ...
[ "base", "nonn" ]
A068713
[ 0, 1, 2, 3, 4, 6, 7, 10, 11, 17, 19, 25, 27, 31, 33, 42, 43, 49, 51, 57, 64, 65, 106, 139, 196, 273, 279, 379, 392, 505, 663, 737, 874, 943, 1015, 1546, 1547, 1686, 3937, 4065, 5164, 6257, 6401, 7066, 7412, 7966, 9440, 992...
[ "nonn" ]
A203397
[ 1, 1, 1, 1, 16, 1, 1, 185, 185, 1, 1, 1455, 7785, 1455, 1, 1, 10804, 210342, 210342, 10804, 1, 1, 83876, 5666072, 18530502, 5666072, 83876, 1, 1, 661595, 163500122, 1650100394, 1650100394, 163500122, 661595, 1, 1, 5187181, 4711784187 ]
[ "nonn", "tabl" ]
A011342
[ 1, 2, 2, 5, 0, 7, 7, 8, 7, 0, 7, 9, 2, 7, 4, 0, 0, 5, 8, 3, 7, 8, 9, 8, 7, 9, 2, 3, 6, 9, 3, 9, 3, 8, 2, 4, 7, 5, 6, 9, 6, 3, 7, 1, 0, 6, 9, 2, 4, 2, 0, 2, 3, 0, 0, 9, 2, 6, 3, 7, 5, 9, 4, 4...
[ "nonn", "cons" ]
A363259
[ 0, 1, 0, 2, 1, 3, 0, 5, 0, 5, 3, 6, 0, 8, 0, 8, 4, 11, 0, 11, 0, 11, 5, 12, 2, 14, 0, 17, 6, 15, 0, 19, 0, 17, 7, 18, 0, 24, 5, 20, 8, 21, 0, 23, 0, 25, 9, 29, 0, 29, 0, 26, 16, 27, 0, 29, 0, 35, 11, ...
[ "nonn" ]
A204080
[ 0, 16, 256, 11236, 107584, 3904576, 76212900, 1650959424, 39031534096, 864587548224, 19412272036096, 437675604807204, 9849402103175716, 221594251463336200, 4988444738917092000, 112294697209531470000 ]
[ "nonn" ]
A116643
[ 160426514, 10267296896, 95200890914, 116950928706, 176277173474, 289824641354, 300620262890, 657107001344, 2506664281250, 6092857018496, 6963806813393, 7484859437184, 8427066928346, 10824753654794 ]
[ "nonn" ]
A341350
[ 2, 4, 7, 8, 10, 12, 14, 17, 18, 19, 22, 24, 26, 27, 32, 33, 34, 38, 39, 40, 42, 44, 47, 48, 49, 52, 55, 58, 59, 60, 62, 64, 66, 68, 70, 72, 74, 82, 83, 84, 86, 87, 88, 89, 91, 92, 93, 97, 102, 104, 105, 107, 108,...
[ "nonn" ]
A181462
[ 58, 117, 119, 176, 235, 237, 296, 353, 471, 530, 532, 589, 591, 650, 766, 827, 945, 1002, 1061, 1063, 1179, 1297, 1299, 1535, 1592, 1594, 1651, 1769, 1828, 1887, 1889, 2066, 2184, 2241, 2243, 2300, 2302, 2479, 2536, 2774, 2951, 3126, ...
[ "fini", "full", "nonn" ]
A386469
[ 1, 2, 3, 2, 5, 6, 7, 2, 3, 10, 11, 6, 13, 14, 15, 16, 17, 6, 19, 10, 21, 22, 23, 6, 5, 26, 3, 14, 29, 30, 31, 16, 33, 34, 35, 6, 37, 38, 39, 10, 41, 42, 43, 22, 15, 46, 47, 48, 7, 10, 51, 26, 53, 6, 55, 14,...
[ "nonn", "easy", "mult" ]
A065157
[ 1, 2, 2, 3, 4, 3, 4, 6, 10, 4, 5, 8, 15, 8, 5, 6, 10, 36, 12, 18, 6, 7, 12, 45, 16, 27, 20, 7, 8, 14, 54, 20, 68, 30, 42, 8, 9, 16, 63, 24, 85, 72, 63, 16, 9, 10, 18, 136, 28, 102, 90, 292, 24, 34, 10, 11, ...
[ "base", "easy", "nonn", "tabl" ]
A225849
[ 1, 3, 1, -2, 2, 2, -1, 0, -4, 2, 5, -2, 0, -8, 2, 8, -3, 2, -14, 6, 14, -6, 4, -24, 12, 24, -11, 4, -40, 16, 38, -16, 5, -62, 24, 60, -24, 10, -94, 40, 91, -38, 18, -144, 62, 136, -57, 24, -214, 88, 201, -82, 30,...
[ "sign" ]
A344609
[ 1, 2, 3, 4, 5, 7, 8, 9, 11, 12, 13, 16, 17, 18, 19, 20, 23, 25, 27, 28, 29, 30, 31, 32, 36, 37, 41, 42, 43, 44, 45, 47, 48, 49, 50, 52, 53, 59, 61, 63, 64, 66, 67, 68, 70, 71, 72, 73, 75, 76, 78, 79, 80, 81, ...
[ "nonn" ]
A117506
[ 1, 1, 1, 1, 1, 2, 1, 1, 3, 2, 3, 1, 1, 4, 5, 6, 5, 4, 1, 1, 5, 9, 5, 10, 16, 5, 10, 9, 5, 1, 1, 6, 14, 14, 15, 35, 21, 21, 20, 35, 14, 15, 14, 6, 1, 1, 7, 20, 28, 14, 21, 64, 70, 56, 42, 35, 90, 56, 7...
[ "nonn", "easy", "tabf" ]
A128620
[ 1, 1, 4, 6, 15, 24, 52, 84, 170, 275, 534, 864, 1631, 2639, 4880, 7896, 14373, 23256, 41810, 67650, 120406, 194821, 343884, 556416, 975325, 1578109, 2749852, 4449354, 7713435, 12480600, 21540304, 34852944, 59917826, 96949079, 166094370, 268746336...
[ "nonn", "easy" ]
A175582
[ 6, 14, 21, 30, 28, 36, 45, 48, 62, 60, 60, 84, 72, 72, 84, 93, 112, 90, 117, 126, 108, 105, 140, 124, 120, 180, 156, 168, 144, 168, 186, 196, 189, 240, 180, 186, 273, 192, 254, 234, 252, 217, 288, 300, 252, 228, 252, 280, ...
[ "nonn" ]
A385542
[ 0, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 13, 1, 10, 1, 5, 1, 1, 1, 13, 1, 1, 10, 5, 1, 1, 1, 29, 1, 1, 1, 14, 1, 1, 1, 13, 1, 1, 1, 5, 10, 1, 1, 29, 1, 26, 1, 5, 1, 37, 1, 13, 1, 1, 1, 5, 1, ...
[ "nonn", "easy" ]
A387772
[ 512, 203391, 668363967, 1691788490622, 431094129471872 ]
[ "nonn", "fini", "more" ]
A254448
[ 0, 8, 24, 25, 134, 407, 151, 2936, 8040, 26808, 49668, 115189, 429335, 1365981, 3507499 ]
[ "nonn", "base" ]
A272774
[ 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 4, 0, 1, 0, 4, 0, 11, 0, 1, 0, 0, 38, 0, 26, 0, 1, 0, 38, 0, 230, 0, 57, 0, 1, 0, 0, 688, 0, 1148, 0, 120, 0, 1, 0, 688, 0, 7572, 0, 5192, 0, 247, 0, 1, 0, 0, 20648, ...
[ "nonn", "tabl" ]
A015130
[ 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1,...
[ "sign" ]
A273332
[ 1, 6, 15, 32, 53, 82, 119, 188, 261, 342, 431, 552, 681, 842, 1027, 1308, 1593, 1886, 2187, 2520, 2861, 3234, 3631, 4124, 4629, 5158, 5711, 6360, 7033, 7802, 8643, 9772, 10905, 12046, 13195, 14376, 15565, 16786, 18031, 19372, 20725, 2...
[ "nonn", "easy" ]
A223990
[ 56, 3136, 99634, 2086196, 31831914, 378122264, 3661410444, 29889154034, 211009204916, 1314178222276, 7336228725354, 37185201981670, 172974779780114, 745060738789758, 2994209711354545, 11299608627412728, 40267814207071510 ]
[ "nonn" ]
A255279
[ 1, 7, 7, 25, 7, 49, 25, 107, 7, 49, 49, 175, 25, 175, 107, 413, 7, 49, 49, 175, 49, 343, 175, 749, 25, 175, 175, 625, 107, 749, 413, 1615, 7, 49, 49, 175, 49, 343, 175, 749, 49, 343, 343, 1225, 175, 1225, 749, 2891, 25, ...
[ "nonn" ]
A032087
[ 4, 6, 24, 120, 480, 2016, 8064, 32640, 130560, 523776, 2095104, 8386560, 33546240, 134209536, 536838144, 2147450880, 8589803520, 34359607296, 137438429184, 549755289600, 2199021158400, 8796090925056, 35184363700224, 140737479966720, 562949919866880 ]
[ "nonn", "easy" ]
A032120
[ 1, 3, 6, 18, 45, 135, 378, 1134, 3321, 9963, 29646, 88938, 266085, 798255, 2392578, 7177734, 21526641, 64579923, 193720086, 581160258, 1743421725, 5230265175, 15690618378, 47071855134, 141215033961, 423645101883 ]
[ "nonn", "easy" ]
A336807
[ 1, 5, 81, 2917, 186689, 18668901, 2688321745, 526911062021, 134889231877377, 43704111128270150, 17481644451308059000, 8.4611159144331e+21, 4.873602766713467e+24, 3.294555470298303e+27, 2.5829314887138695e+30, 2.3246383398424825e+33 ]
[ "nonn" ]
A232519
[ 16, 784, 400, 19138, 10118, 475086, 270400, 11784356, 7140010, 292330336, 188043058, 7252216630, 4934734294, 179925026928, 129109909224, 4464133177230, 3368749724012, 110766190099038, 87681691291582, 2748538208103026 ]
[ "nonn" ]
A111237
[ 1, 12, 2880, 226800, 101606400, 6985440000, 35961045120000, 1431699108840000, 692306057963520000, 181128033944995730000, 3.441432644954919e+23, 6.651046563131625e+24, 2.202826621709194e+28 ]
[ "nonn" ]
A280552
[ 6, 194, 670, 1666, 3438, 6502, 11697, 20440, 35226, 60300, 102974, 175746, 299975, 512080, 874058, 1491286, 2542606, 4331134, 7369949, 12526488, 21265610, 36058400, 61069118, 103308602, 174569331, 294669456, 496887354, 837059626 ]
[ "nonn" ]
A091847
[ 15, 39, 111, 183, 255, 327, 363, 471, 2199, 3063, 4359, 4375, 5571, 8751, 15723, 36759, 46791, 65535, 140103, 208191, 441027, 4190263, 9056583, 57395631, 172186887, 236923383, 918330183, 3932935775, 4294967295, 4764161215 ]
[ "nonn" ]
A100869
[ 2, 3, 8, 4, 6, 5, 18, 12, 17, 6, 5, 7, 32, 39, 16, 23, 36, 8, 12, 10, 14, 9, 24, 12, 20, 17, 23, 10, 15, 7, 20, 11, 72, 48, 36, 47, 24, 35, 95, 72, 60, 12, 10, 7, 12, 13, 98, 71, 82, 95, 101, 28, 41, 47, 58, ...
[ "nonn", "tabf" ]
A377683
[ 1, 0, 6, 9, 96, 450, 3132, 22680, 179904, 1578528, 15282000, 162304560, 1879227072, 23579281440, 318874800384, 4625170411680, 71640771563520, 1180394962790400, 20616532017767424, 380509312545031700, 7400308896979661000, 151271976281858600000, 3.2425092369996836e+21 ]
[ "nonn", "easy" ]
A041417
[ 1, 1, 14, 15, 434, 449, 6271, 6720, 194431, 201151, 2809394, 3010545, 87104654, 90115199, 1258602241, 1348717440, 39022690561, 40371408001, 563850994574, 604222402575, 17482078266674, 18086300669249, 252603986966911, 270690287636160, 7831932040779391 ]
[ "nonn", "frac", "easy" ]
A192231
[ 1, 123, 124, 125, 126, 306, 330, 538, 539, 540, 904, 905, 906, 1147, 1148, 1149, 1150, 1346, 1347, 1348, 1349, 1350, 1351, 1352, 1353, 1354, 1355, 1356, 1357, 1358, 1359, 1360, 1689, 1690, 1691, 1692, 1971, 1972, 2200, 2201 ]
[ "nonn" ]
A218552
[ 1, 1, 2, 4, 9, 20, 46, 107, 253, 604, 1463, 3573, 8812, 21901, 54837, 138145, 350068, 891529, 2281092, 5860471, 15113614, 39109461, 101521521, 264286160, 689820642, 1804890193, 4733051924, 12437565725, 32746931264, 86375236835, 228212881032, 603915863737...
[ "nonn" ]
A093305
[ 1, 2, 3, 4, 5, 9, 11, 19, 29, 48, 75, 132, 213, 369, 627, 1083, 1857, 3244, 5619, 9844, 17205, 30229, 53115, 93701, 165313, 292464, 517831, 918578, 1630933, 2900109, 5161443, 9197251, 16402841, 29283026, 52319379, 93558968, 167427845, 2998467...
[ "easy", "nonn", "changed" ]
A128498
[ 1, 1, -3, -3, 7, 7, -13, -13, 22, 22, -34, -34, 50, 50, -70, -70, 95, 95, -125, -125, 161, 161, -203, -203, 252, 252, -308, -308, 372, 372, -444, -444, 525, 525, -615, -615, 715, 715, -825, -825, 946, 946, -1078, -1078, 1222, ...
[ "sign", "easy" ]
A337946
[ 1, 3, 7, 12, 22, 30, 47, 61, 85, 113, 126, 177, 193, 246, 279, 321, 341, 428, 499, 571, 616, 686, 754, 854, 975, 1052, 1150, 1317, 1376, 1457, 1513, 1664, 1761, 1961, 2307, 2434, 2591, 2795, 2843, 3057, 3226, 3405, 3508, 3776, 3...
[ "nonn" ]
A123782
[ 23, 679, 27591, 1227556, 59212274, 2990304700, 156407426393 ]
[ "nonn", "hard" ]
A308922
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 4, 5, 7, 10, 7, 11, 12, 16, 14, 24, 20, 32, 29, 40, 32, 55, 37, 70, 56, 81, 59, 102, 72, 128, 85, 139, 101, 182, 112, 209, 139, 233, 151, 287, 179, 336, 209, 372, 24...
[ "nonn" ]
A177346
[ 1, 3, 8, 7, 4, 2, 5, 8, 8, 6, 7, 2, 2, 7, 9, 3, 1, 1, 0, 6, 6, 6, 2, 9, 7, 8, 4, 8, 1, 4, 4, 2, 3, 9, 5, 1, 1, 2, 3, 9, 8, 5, 1, 7, 1, 3, 1, 0, 8, 4, 0, 5, 6, 0, 8, 9, 5, 2, 5, 0, 1, 6, 1, 7...
[ "cons", "nonn" ]
A262335
[ 8, 64, 512, 3375, 24389, 185193, 1481544, 11852352, 94818816, 756058031, 6038510661, 48268303721, 386146429768, 3089171438144, 24713371505152, 197696790931375, 1581533604060229, 12652105941015912, 101216847528127300 ]
[ "nonn" ]
A355107
[ 1, 3, 18, 189, 2988, 65070, 1845666, 65593773, 2838648888, 146342004696, 8832171768840, 615243982098438, 48886929048261630, 4387169287407672000, 440884788552635300000, 4.925078362300535e+22, 6.076420246639539e+24, 8.232994932236055e+26 ]
[ "nonn" ]
A084169
[ 0, 1, 2, 15, 60, 319, 1470, 7267, 34680, 168435, 810898, 3921103, 18918900, 91381991, 441150502, 2130258075, 10285325040, 49663079099, 239791814010, 1157823924167, 5590452446700, 26993130847215, 130334271942158 ]
[ "nonn", "easy" ]
A083539
[ 3, 12, 28, 42, 72, 96, 120, 195, 234, 216, 336, 392, 336, 576, 744, 558, 702, 780, 840, 1344, 1152, 864, 1440, 1860, 1302, 1680, 2240, 1680, 2160, 2304, 2016, 3024, 2592, 2592, 4368, 3458, 2280, 3360, 5040, 3780, 4032, 4224, 3696, ...
[ "nonn", "easy" ]
A162378
[ 1, 31, 495, 5425, 45879, 319145, 1900920, 9965384, 46909324, 201295028, 796809245, 2937251395, 10161553364, 33205476524, 103050077489, 305131440111, 865481871426, 2359754902590, 6203436293890, 15765840836350, 38828731002622 ]
[ "nonn" ]
A122116
[ 3, 6, 8, 12, 14, 16, 17, 19, 28, 38, 47, 52, 64, 101, 274, 466, 1709, 2539 ]
[ "nonn", "easy" ]
A219791
[ 0, 1, 1, 1, 2, 0, 2, 1, 2, 2, 2, 2, 2, 2, 5, 0, 2, 1, 2, 2, 4, 2, 4, 0, 6, 2, 6, 2, 5, 3, 6, 3, 5, 4, 7, 3, 6, 2, 5, 6, 6, 1, 6, 5, 4, 1, 6, 2, 7, 5, 5, 2, 9, 3, 8, 4, 8, 3, 6, 6, 4, 3, 9, 4...
[ "nonn" ]
A234374
[ 16584, 372690, 8280018, 183669567, 4070647527, 90202925160, 1998695595393, 44285957330064, 981257012375877, 21741969563527710, 481742279623346300, 10674083235829127000, 236508300027959900000, 5.240372784459503e+21, 1.1611223285982203e+23, 2.572727391510523e+24 ]
[ "nonn" ]
A356396
[ 0, 2, 7, 20, 26, 44, 54, 73, 112, 143, 159, 196, 212, 264, 290, 350, 376, 426, 492, 518, 568, 675, 756, 798, 905, 986, 1028, 1125, 1167, 1280, 1361, 1403, 1500, 1542, 1683, 1751, 1908, 1976, 2107, 2290, 2358, 2515, 2583, 2714, 2...
[ "nonn", "base" ]
A090090
[ 14, 33, 65, 119, 209, 299, 493, 589, 851, 1189, 1333, 1739, 2173, 2537, 2867, 3551, 4189, 4453, 5293, 5893, 6497, 7663, 8383, 9167, 10379, 11009, 11639, 13589, 14279, 15481, 17653, 19519, 20687, 21823, 24287, 25217, 27161, 29177, 30227, 3...
[ "easy", "nonn" ]
A358540
[ 56, 140, 1440, 11550, 351120, 41580, 742560, 29279250, 8316000, 72348396120, 3386892600, 578918340 ]
[ "nonn", "more" ]
A095645
[ 106, 127, 151, 177, 241, 331, 1002, 1333, 11201, 1111111, 1.111111111111111e+126 ]
[ "nonn", "fini", "full" ]
A189934
[ 2, 5, 8, 11, 14, 17, 20, 23, 26, 28, 31, 34, 37, 40, 43, 46, 49, 52, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 83, 86, 89, 92, 95, 98, 101, 104, 107, 109, 112, 115, 118, 121, 124, 127, 130, 133, 136, 138, 141, 144, 147...
[ "nonn" ]
A258596
[ 1, 1, 1, 2, 2, 2, 3, 2, 4, 4, 4, 6, 4, 6, 4, 4, 6, 4, 4, 8, 7, 6, 2, 8, 4, 4, 8, 14, 8, 9, 8, 12, 16, 14, 10, 12, 6, 16, 24, 4, 8, 36, 8, 16, 8, 12, 27, 16, 16, 28, 8, 4, 8, 22, 8, 8, 6, 16, 16, 42,...
[ "nonn" ]
A177960
[ 3, 5, 17, 51, 257, 1285, 3855, 13107, 65537, 196611, 983055, 1114129, 5570645, 16711935, 50529027, 84215045, 858993459, 4294967297, 21474836485, 219043332147, 365072220245, 1103806595329, 3311419785987 ]
[ "nonn" ]
A275815
[ 0, 4, 17, 40, 76, 128, 200, 288, 392, 512, 648, 800, 968, 1152, 1352, 1568, 1800, 2048, 2312, 2592, 2888, 3200, 3528, 3872, 4232, 4608, 5000, 5408, 5832, 6272, 6728, 7200 ]
[ "nonn", "more" ]
A213457
[ 1, 1, 2, 10, 148, 7384, 1380960, 1058349286 ]
[ "nonn", "more" ]
A263392
[ 66837283, 68026001, 71344361, 71604733, 74477159, 94270439, 97579567, 122606647, 140022313, 153196541, 170969579, 182720077, 198885523, 211327993, 220316413, 227116031, 280536071, 285155137, 290419777, 292202437, 293175191, 309240779, 324576431, 331006603 ]
[ "nonn" ]
A071427
[ 1, 1, 2, 2, 0, 3, 1, 1, 2, 2, 3, 3, 4, 4, 0, 5, 3, 3, 4, 2, 2, 1, 1, 3, 0, 2, 2, 1, 1, 4, 4, 5, 5, 2, 6, 4, 7, 5, 8, 1, 2, 2, 0, 3, 1, 1, 2, 2, 3, 3, 4, 8, 1, 5, 5, 3, 3, 10, 2, 1, 9, 3, 0, ...
[ "nonn" ]
A111528
[ 1, 1, 1, 1, 1, 2, 1, 1, 3, 6, 1, 1, 4, 13, 24, 1, 1, 5, 22, 71, 120, 1, 1, 6, 33, 148, 461, 720, 1, 1, 7, 46, 261, 1156, 3447, 5040, 1, 1, 8, 61, 416, 2361, 10192, 29093, 40320, 1, 1, 9, 78, 619, 4256, 23805, 996...
[ "nonn", "tabl" ]
A288249
[ 3, 8, 18, 28, 44, 65, 88, 118, 151, 189, 226, 272, 323, 377, 433, 493, 558, 627, 701, 778, 860, 945, 1034, 1127, 1224, 1325 ]
[ "nonn", "more" ]
A048010
[ 0, 0, 0, 0, 1, 5, 10, 30, 70, 105, 213, 405, 558, 1110, 2310, 3300, 7435, 16575, 23855, 52871, 113815, 160615, 346745, 744345, 1047438, 2299998, 5036862, 7110522, 15770601, 34636245, 48767082, 107787262, 236331302, 331877557 ]
[ "nonn" ]
A028769
[ 2, 3, 5, 6, 7, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 26, 27, 29, 30, 31, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 50, 51, 52, 53, 54, 55 ]
[ "nonn", "fini", "full", "easy" ]
A246405
[ 1, 3, 5, 7, 9, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 100, 102, 104, 106, 108, 110,...
[ "nonn", "easy" ]