id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A182672
[ 0, 99, 981, 9981, 99997, 999981, 9999988, 99999961, 999999981, 9999999908, 99999999964, 999999999927, 9999999999884, 99999999999932, 999999999999908, 9999999999999924, 99999999999999970, 999999999999999900, 10000000000000000000, 100000000000000000000 ]
[ "nonn", "base" ]
A187319
[ 1, 2, 3, 5, 6, 8, 10, 11, 12, 13, 15, 16, 18, 19, 20, 22, 23, 24, 25, 27, 29, 30, 32, 33, 35, 36, 37, 39, 40, 42, 43, 44, 46, 47, 49, 50, 52, 53, 54, 56, 57, 59, 60, 62, 63, 65, 66, 67, 69, 70, 71, 73, 74, 76, 77, 78, 79, 81, 83, 84, 85, 86, 88, 89, 91, 93, 94, 95, 96, 98, 99, 101, 102, 103, 105, 106, 108, 110, 111, 112, 113, 115, 116, 118, 119, 120, 122, 123, 125, 126, 127, 129 ]
[ "nonn" ]
A105368
[ 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1 ]
[ "sign", "easy" ]
A112206
[ 1, 1, 0, 2, 2, 1, 2, 2, 3, 4, 4, 4, 7, 7, 6, 10, 11, 11, 14, 16, 17, 21, 22, 24, 32, 34, 34, 44, 49, 50, 60, 66, 72, 84, 90, 98, 117, 125, 132, 156, 171, 181, 206, 226, 245, 277, 298, 322, 369, 397, 422, 480, 522, 557, 620, 674, 728, 807, 868, 936, 1043, 1121, 1198 ]
[ "nonn" ]
A149533
[ 1, 1, 5, 13, 49, 177, 645, 2521, 9653, 38409, 152453, 616017, 2495933, 10203805, 41971201, 173082373, 719670741, 2991784285, 12531776661, 52482689565, 221024161045, 931529633897, 3939885956705, 16692931806241, 70862610871997, 301532473203261, 1284316853391157, 5483956190912425 ]
[ "nonn", "walk" ]
A319107
[ 1, 0, 1, 1, 3, 2, 9, 5, 17, 17, 38, 33, 88, 75, 169, 181, 343, 353, 712, 728, 1348, 1518, 2591, 2898, 5025, 5615, 9259, 10866, 17160, 20111, 31775, 37264, 57130, 68782, 102663, 123698, 183793, 221708, 323077, 395325, 566079, 693248, 987086, 1210110, 1700074, 2100674, 2915549 ]
[ "nonn" ]
A086855
[ 0, 0, 0, 0, 0, 2, 22, 226, 2198, 22120, 236968, 2732268, 33940644, 453148422, 6480322210, 98907371822, 1605581578202, 27631315113916, 502618772515748, 9637245372790760, 194291040277517700, 4109014039030693400, 90968013940830450000, 2.1040729617634686e+21 ]
[ "nonn" ]
A125988
[ 0, 1, 2, 3, 4, 7, 5, 6, 8, 9, 16, 12, 17, 21, 10, 13, 11, 14, 20, 18, 15, 19, 22, 23, 42, 30, 45, 56, 26, 35, 31, 44, 58, 48, 46, 57, 63, 24, 32, 27, 33, 50, 25, 29, 28, 37, 53, 47, 40, 54, 62, 43, 36, 34, 38, 41, 49, 39, 51, 61, 59, 55, 52, 60, 64, 65, 121, 84, 128, 163, 72 ]
[ "nonn" ]
A294748
[ 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 63, 65, 67, 69, 71, 73, 75, 77, 79, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 125, 127, 129, 131, 133, 135, 137, 141, 143, 145 ]
[ "nonn" ]
A312778
[ 1, 4, 8, 16, 18, 26, 26, 40, 34, 46, 46, 56, 56, 68, 60, 82, 72, 84, 86, 98, 88, 112, 98, 118, 114, 126, 116, 144, 126, 146, 142, 160, 142, 174, 154, 176, 172, 188, 168, 210, 180, 204, 202, 218, 196, 240, 206, 238, 230, 246 ]
[ "nonn" ]
A147800
[ 2, 6, 22, 42, 222, 366, 2046, 13962, 10626, 79926, 293262 ]
[ "nonn", "more" ]
A373633
[ 10, 11, 14, 15, 22, 26, 34, 38, 52, 53, 59, 68, 76, 77, 92, 107, 116, 117, 125, 131, 134, 149, 152, 158, 164, 173, 179, 184, 185, 187, 188, 206, 212, 227, 230, 236, 245, 248, 251, 254, 259, 268, 269, 283, 293, 299, 317, 326, 332, 347, 356, 371, 389, 398, 403 ]
[ "nonn", "hard" ]
A283724
[ 0, 1032, 56106, 2258212, 83987692, 2938694472, 99246546144, 3267618010712, 105565418525004, 3361146348020960, 105782383857436340, 3297885696243120000, 102011782806299150000, 3.134659055255538e+21, 9.577947136327018e+22 ]
[ "nonn" ]
A338756
[ 0, 0, 0, 0, 1, 0, 0, 2, 2, 4, 3, 4, 2, 5, 5, 4, 7, 8, 8, 8, 8, 9, 10, 8, 8, 12, 12, 13, 12, 14, 15, 16, 18, 17, 16, 18, 16, 20, 20, 24, 22, 24, 23, 24, 24, 24, 26, 27, 28, 24, 24, 29, 32, 31, 30, 32, 36, 33, 36, 32, 35, 40, 38, 38, 34, 36, 41, 38, 43, 44, 38, 44, 45, 44, 47 ]
[ "nonn" ]
A293792
[ 14, 15, 16, 23, 24, 30, 31, 36, 37, 51, 58, 79, 80, 88, 89, 92, 93, 94, 95, 96, 97, 100, 105, 113, 119, 125, 126, 134, 135, 142, 147, 148, 154, 155, 156, 157, 163, 168, 169, 177, 186, 198, 204, 205, 206, 209, 216, 219, 220, 221, 222, 225, 226, 231, 232, 236 ]
[ "nonn", "easy", "base" ]
A115646
[ 6, 9, 25, 26, 33, 121, 122, 123, 129, 145, 146, 721, 723, 745, 746, 753, 841, 842, 843, 849, 865, 866, 871, 5041, 5042, 5065, 5071, 5161, 5163, 5169, 5186, 5191, 5761, 5767, 5793, 5905, 5906, 5911, 40321, 40322, 40323, 40345, 40346, 40353, 40441 ]
[ "nonn" ]
A120366
[ 2, 3, 23, 47, 59, 83, 107, 167, 179, 227, 239, 263, 347, 359, 383, 419, 443, 467, 479, 503, 563, 587, 599, 647, 659, 683, 719, 743, 827, 839, 863, 887, 947, 983, 1019, 1103, 1163, 1187, 1223, 1259, 1283, 1307, 1319, 1367, 1427, 1439, 1487, 1499, 1523, 1559 ]
[ "nonn" ]
A260788
[ 2, 6, 20, 82, 344, 1598 ]
[ "nonn", "more" ]
A136380
[ 24, 160, 11968, 49657088, 837028380268032, 2.372699221007487e+29, 1.8811253173629698e+58, 1.1817882660278121e+116 ]
[ "nonn", "base" ]
A113709
[ 4, 6, 8, 12, 16, 18, 20, 24, 30, 36, 40, 42, 44, 48, 54, 60, 66, 68, 72, 78, 80, 84, 96, 100, 102, 104, 108, 112, 126, 128, 132, 138, 140, 150, 156, 162, 164, 168, 174, 180, 190, 192, 196, 198, 204, 216, 224, 228, 232, 234, 240, 250, 252, 258, 264, 270, 276, 280 ]
[ "nonn" ]
A207869
[ 1, -1, 1, 2, -1, 0, -2, 1, 2, 0, 2, 3, -1, 0, -2, 0, 1, -2, -1, -3, 1, 2, 0, 2, 3, 0, 1, -1, 2, 3, 1, 3, 4, -1, 0, -2, 0, 1, -2, -1, -3, 0, 1, -1, 1, 2, -2, -1, -3, -1, 0, -3, -2, -4, 1, 2, 0, 2, 3, 0, 1, -1, 2, 3, 1, 3, 4, 0, 1, -1, 1, 2, -1, 0, -2, 2, 3, 1, 3, 4, 1, 2, 0 ]
[ "sign" ]
A068816
[ 511111, 5111111111111, 5111111111111111, 5.111111111111111e+84 ]
[ "nonn", "base" ]
A295653
[ 0, 0, 1, 0, 2, 2, 0, 1, 4, 3, 0, 4, 4, 6, 4, 0, 1, 8, 5, 8, 5, 0, 2, 2, 12, 8, 10, 6, 0, 1, 8, 3, 16, 9, 12, 7, 0, 8, 8, 10, 8, 20, 12, 14, 8, 0, 1, 16, 9, 16, 9, 24, 13, 16, 9, 0, 2, 2, 24, 16, 18, 10, 28, 16, 18, 10, 0, 1, 4, 3, 32, 17, 24, 11, 32, 17, 20 ]
[ "nonn", "tabl", "base" ]
A370355
[ 1681, 5251, 7771, 36961, 39271, 170941, 196351, 360361, 510511, 1009471, 9699691 ]
[ "nonn", "hard", "more" ]
A005295
[ 1, 0, 1, 0, 3, 1, 8, 6, 19, 21, 48, 57, 117, 150, 268, 366, 609, 840, 1338, 1866, 2856, 4004, 5961, 8332, 12163, 16938, 24278, 33666, 47577, 65571, 91584, 125469, 173394 ]
[ "nonn" ]
A334888
[ 0, 1, 2, 2, 2, 1, 0, 0, 3, 4, 5, 5, 5, 4, 3, 3, 6, 7, 8, 8, 8, 7, 6, 6, 6, 7, 8, 8, 8, 7, 6, 6, 6, 7, 8, 8, 8, 7, 6, 6, 3, 4, 5, 5, 5, 4, 3, 3, 0, 1, 2, 2, 2, 1, 0, 0, 0, 1, 2, 2, 2, 1, 0, 0, 9, 10, 11, 11, 11, 10, 9, 9, 12, 13, 14, 14, 14, 13, 12, 12, 15, 16 ]
[ "nonn", "base" ]
A212066
[ 0, 0, 4, 24, 71, 166, 322, 571, 928, 1403, 2043, 2875, 3906, 5183, 6727, 8584, 10762, 13303, 16219, 19601, 23442, 27766, 32636, 38080, 44130, 50771, 58147, 66243, 75099, 84768, 95238, 106629, 118939, 132179, 146448, 161761, 178106 ]
[ "nonn" ]
A122218
[ 0, 0, 0, 1, 1, 1, 1, 2, 2, 1, 1, 3, 4, 3, 1, 1, 4, 7, 7, 4, 1, 1, 5, 11, 14, 11, 5, 1, 1, 6, 16, 25, 25, 16, 6, 1, 1, 7, 22, 41, 50, 41, 22, 7, 1, 1, 8, 29, 63, 91, 91, 63, 29, 8, 1, 1, 9, 37, 92, 154, 182, 154, 92, 37, 9, 1 ]
[ "nonn", "tabl" ]
A249740
[ 1, 1, 1, 2, 1, 1, 1, 2, 3, 1, 1, 2, 1, 1, 1, 2, 1, 3, 1, 2, 1, 1, 1, 2, 5, 1, 3, 2, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 2, 3, 1, 1, 2, 7, 5, 1, 2, 1, 3, 1, 2, 1, 1, 1, 2, 1, 1, 3, 2, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 5, 2, 1, 1, 1, 2, 3, 1, 1, 2, 1, 1, 1, 2, 1, 3, 1, 2, 1, 1, 1, 2, 1, 7, 3, 5, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 2, 3, 1, 1, 2 ]
[ "nonn" ]
A127957
[ 10, 12, 13, 15, 16, 17, 19, 20, 21, 23, 24, 25, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 44, 45, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 66, 67, 68, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89 ]
[ "nonn" ]
A051594
[ 466200, 604656, 1103760, 2580048, 3652560, 5823216, 5255856, 5733288, 6941160, 7780968, 7738128, 11063448, 16588192, 14914224, 19592496, 17928144, 21614544, 20934576, 23009200, 22829040, 28157688, 29892800, 25180848, 28536300 ]
[ "nonn" ]
A035832
[ 1, 188, 17672, 1107508, 52061712, 1958184876, 61391167256, 1650190052644, 38825509612576, 812305237503644, 15302398872758568, 262196521383285800, 4120497500732109300, 59810591682527130000, 806702657594563200000 ]
[ "nonn" ]
A127730
[ 2, 6, 4, 12, 20, 3, 6, 12, 30, 42, 8, 24, 56, 18, 72, 10, 15, 40, 90, 110, 4, 6, 12, 24, 36, 60, 132, 156, 14, 35, 84, 182, 10, 30, 60, 210, 16, 48, 112, 240, 272, 9, 18, 36, 63, 90, 144, 306, 342, 5, 20, 30, 60, 80, 180, 380, 28, 42, 126, 420, 22, 99, 220, 462 ]
[ "nonn", "easy", "tabf" ]
A187733
[ 3, 5, 13, 137, 523, 524309, 134217757, 8589934627, 1.78405961588245e+44 ]
[ "nonn" ]
A083559
[ 1, 12, 50, 134, 280, 507, 834, 1277, 1855, 2586, 3489, 4580, 5878, 7401, 9168, 11195, 13501, 16104, 19023, 22274, 25876, 29847, 34206, 38969, 44155, 49782, 55869, 62432, 69490, 77061, 85164, 93815, 103033, 112836, 123243, 134270, 145936 ]
[ "nonn", "easy" ]
A319781
[ 1, 0, 0, 1, 3, 9, 21, 48, 103, 214, 436, 863, 1689 ]
[ "nonn", "more" ]
A094609
[ 4, 7, 49, 52, 295, 369, 415, 499, 502, 594, 652, 760, 2254, 4999, 5002, 8827, 10330, 14877, 49999, 50002, 490150, 499999, 500002, 509949, 3347109, 4999999, 5000002, 6983470, 24913494, 49999999, 50000002 ]
[ "base", "nonn" ]
A170641
[ 1, 8, 56, 392, 2744, 19208, 134456, 941192, 6588344, 46118408, 322828856, 2259801992, 15818613944, 110730297608, 775112083256, 5425784582792, 37980492079544, 265863444556808, 1861044111897656, 13027308783283592 ]
[ "nonn" ]
A194263
[ 1729, 13981, 88537, 51319, 137149, 548497, 285541, 3372529, 18326641, 1152271, 1809641, 3828001, 4814857, 4797703, 79230049, 4413223, 4209661, 19703611, 3882139, 50357677, 70611161, 26536591, 175493677, 85409941, 12932989, 84350561, 192754871, 59756863 ]
[ "nonn" ]
A240434
[ 0, 4, 28, 128, 480, 1600, 4928, 14336, 39936, 107520, 281600, 720896, 1810432, 4472832, 10895360, 26214400, 62390272, 147062784, 343670784, 796917760, 1835008000, 4198498304, 9550430208, 21609054208, 48653926400, 109051904000, 243403849728, 541165879296 ]
[ "nonn" ]
A310692
[ 1, 4, 7, 10, 14, 18, 21, 25, 31, 34, 37, 41, 45, 49, 52, 56, 63, 67, 70, 74, 78, 83, 84, 88, 98, 99, 101, 106, 109, 116, 116, 120, 132, 130, 132, 138, 139, 148, 147, 151, 166, 161, 163, 170, 169, 180, 178, 182, 200, 192 ]
[ "nonn" ]
A160542
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 111, 112 ]
[ "nonn", "easy" ]
A279149
[ 1, 0, 101, 10, 10000, 111, 1010100, 101001, 100000000, 1111111, 10101000000, 1010011111, 1000000010000, 11111000111, 101010001010100, 10100100101001, 10000000000000000, 111111111111111, 1010100000000000000, 101001111111111100, 100000001000000000000 ]
[ "nonn", "easy" ]
A036844
[ 2, 3, 4, 5, 7, 11, 13, 16, 17, 19, 23, 27, 29, 30, 31, 37, 41, 43, 47, 53, 59, 60, 61, 67, 70, 71, 72, 73, 79, 83, 84, 89, 97, 101, 103, 105, 107, 109, 113, 127, 131, 137, 139, 149, 150, 151, 157, 163, 167, 173, 179, 180, 181, 191, 193, 197, 199, 211, 220, 223 ]
[ "nonn" ]
A136767
[ 6, 10, 14, 18, 22, 29, 30, 34, 38, 45, 46, 53, 57, 61, 62, 66, 70, 77, 78, 85, 89, 93, 94, 101, 105, 109, 113, 117, 124, 125, 126, 130, 134, 141, 142, 149, 153, 157, 158, 165, 169, 173, 177, 181, 188, 189, 190, 197, 201, 205, 209, 213, 220, 221, 225, 229, 236 ]
[ "base", "nonn" ]
A264309
[ 52, 735, 11206, 167348, 2495425, 37246076, 555887421, 8296387518, 123820898705, 1847985023104, 27580552397045, 411630441796269, 6143445459997307, 91688850773162860, 1368425163267133400, 20423283873658286000 ]
[ "nonn" ]
A072017
[ 2899999989, 2989999899, 2999889999, 3799999899, 3898989999, 3899799999, 3899999988, 3979989999, 3988899999, 3989999898, 3989999979, 3998999889, 3999889998, 3999898989, 3999899799, 3999979989, 3999988899, 4699998999 ]
[ "nonn", "base" ]
A341394
[ 1, 20, 230, 1940, 13285, 77944, 405250, 1910330, 8300380, 33655860, 128574734, 466317760, 1615509765, 5373215450, 17230062315, 53457917856, 160963157005, 471587847690, 1347417640405, 3761860656610, 10280578499844, 27543107112940, 72440412567485 ]
[ "nonn" ]
A348956
[ 1, 0, -1, 1, -1, 1, 0, 1, -2, 0, 0, 1, 0, 1, -1, -1, -3, 1, 3, 1, 1, 0, -1, 1, -2, 0, -1, -2, -1, 1, 3, 1, -2, 0, 2, 0, 2, 1, -4, 0, -1, 1, 1, 1, 0, -4, 0, 1, -6, 1, 2, -3, 0, 1, 5, 0, 0, 3, 0, 1, 3, 1, -4, -1, -3, 0, 3, 1, 3, -1, -1, 1, 0, 1, -3, -4, -4, 1, 5, 1, -4 ]
[ "sign", "look" ]
A175135
[ 1, 2, 5, 6, 7, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 28, 29, 31, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 120, 121, 122, 124, 125, 126, 127, 128, 129, 130, 132, 133, 134, 135, 136, 137, 138, 139, 141, 142, 143, 145, 146, 148, 149, 150, 151, 153, 154, 157, 161, 162, 163, 165 ]
[ "nonn" ]
A108771
[ 1, 12, 13, 144, 156, 169, 1728, 1872, 2028, 2197, 20736, 22464, 24336, 26364, 28561, 248832, 269568, 292032, 316368, 342732, 371293, 2985984, 3234816, 3504384, 3796416, 4112784, 4455516, 4826809, 35831808, 38817792, 42052608, 45556992 ]
[ "nonn", "easy" ]
A160480
[ -1, -11, 1, -299, 36, -1, -15371, 2063, -85, 1, -1285371, 182474, -8948, 166, -1, -159158691, 23364725, -1265182, 29034, -287, 1, -27376820379, 4107797216, -237180483, 6171928, -77537, 456, -1 ]
[ "uned", "easy", "sign", "tabl" ]
A313766
[ 1, 5, 10, 15, 21, 24, 32, 37, 40, 46, 52, 56, 61, 68, 71, 76, 82, 87, 93, 98, 102, 108, 113, 117, 123, 129, 132, 138, 145, 148, 154, 159, 164, 169, 175, 179, 184, 190, 193, 201, 206, 210, 215, 221, 225, 230, 237, 240, 246, 251 ]
[ "nonn" ]
A113885
[ 1, 1, 2, 2, 4, 3, 6, 3, 9, 3, 5, 8, 6, 6, 15, 7, 6, 10, 15, 7, 9, 8, 17, 9, 12, 8, 21, 9, 16, 8, 23, 12, 12, 14, 15, 16, 12, 14, 18, 15, 15, 24, 18, 14, 30, 14, 21, 28, 18, 18, 19 ]
[ "easy", "nonn" ]
A310189
[ 1, 3, 7, 10, 14, 19, 19, 26, 27, 37, 40, 36, 49, 47, 56, 57, 57, 70, 64, 73, 81, 76, 85, 85, 94, 100, 91, 107, 106, 109, 119, 114, 124, 123, 131, 140, 131, 141, 146, 148, 155, 153, 164, 161, 167, 178, 172, 179, 179, 192 ]
[ "nonn" ]
A013459
[ 1, 0, 1, -4, 9, -40, 385, -2700, 15505, -145360, 1886625, -19796500, 190881625, -2654379000, 44269902625, -625468889500, 8553276590625, -156119043652000, 3194978818578625, -57041478987070500 ]
[ "sign" ]
A055576
[ 0, 1, 28, 35, 36, 46 ]
[ "base", "fini", "full", "nonn" ]
A333225
[ 1, 2, 4, 8, 16, 18, 64, 128, 256, 66, 1024, 68, 4096, 258, 132, 32768, 65536, 1026, 262144, 264, 516, 4098 ]
[ "nonn", "more" ]
A218230
[ 25, 961, 31739, 1012165, 32362849, 1035156707, 33110750073, 1059084383987, 33875964329259, 1083559590888045, 34658833277009040, 1108600518368443600, 35459794605154525000, 1.1342201384261798e+21, 3.627926604591698e+22 ]
[ "nonn" ]
A112504
[ 1, 35, 665, 9107, 100751, 957197, 8110087, 62854845, 453710670, 3091406010, 20086835910, 125465290530, 758173316850, 4455503465430, 25571494599330, 143839855533270, 795332428661055, 4333564250230845, 23317657891319096 ]
[ "nonn", "easy" ]
A115480
[ 48, 5132148528, 2.6167381551300073e+26, 6.550102543188102e+59 ]
[ "nonn" ]
A345178
[ 0, 1, 0, 1, 1, 2, 8, 38, 194, 1138, 8154, 71544, 739406, 8674238, 113451160, 1648133190, 26631054962, 478633871152, 9531297220728, 208851860234540, 4997665703050398, 129765874491438100, 3639593254921626600, 109942671192206480000, 3.5694491026754885e+21, 1.2431944840557991e+23 ]
[ "nonn" ]
A041502
[ 16, 33, 49, 131, 442, 1457, 1899, 7154, 9053, 97684, 790525, 8002934, 8793459, 34383311, 43176770, 163913621, 534917633, 1233748887, 1768666520, 4771081927, 154443288184, 313657658295, 468100946479 ]
[ "nonn", "cofr", "frac", "easy" ]
A352315
[ 5, 5, 21, 13, 91, 143, 95, 533, 221, 17, 407, 575, 341, 275, 703, 259, 377, 319, 53, 559, 4181, 793, 481, 3599, 715, 784, 943, 1955, 3965, 549, 7055, 6815, 2144, 1961 ]
[ "nonn", "more" ]
A193649
[ 1, 1, 3, 5, 15, 33, 91, 221, 583, 1465, 3795, 9653, 24831, 63441, 162763, 416525, 1067575, 2733673, 7003971, 17938661, 45954543, 117709185, 301527355, 772364093, 1978473511 ]
[ "nonn" ]
A384043
[ 1, 2, 50, 4188, 735600, 221302710, 101667388082, 66218673102680, 58048466179356670, 65901249246347380000, 9.406175575039524e+22, 1.6486394513641125e+26, 3.4811020475357294e+29, 8.715471354916204e+32, 2.5529180497099897e+36 ]
[ "nonn" ]
A178682
[ 1, 1, 2, 5, 13, 42, 150, 576, 2266, 9966, 47466, 237019, 1224703, 6429152, 35842344, 212946552, 1325810173, 8488092454, 55276544436, 362961569008, 2465240278980, 17538501945077, 130454679958312, 1002493810175093, 7838007702606372, 61789072382062640 ]
[ "nonn", "nice" ]
A137921
[ 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 2, 3, 2, 3, 4, 4, 2, 4, 2, 4, 4, 3, 2, 5, 3, 3, 4, 5, 2, 5, 2, 5, 4, 3, 4, 6, 2, 3, 4, 6, 2, 5, 2, 5, 6, 3, 2, 7, 3, 5, 4, 5, 2, 6, 4, 6, 4, 3, 2, 7, 2, 3, 6, 6, 4, 6, 2, 5, 4, 7, 2, 8, 2, 3, 6, 5, 4, 6, 2, 8, 5, 3, 2, 8, 4, 3, 4, 7, 2, 8, 4, 5, 4, 3, 4, 9, 2, 5, 6, 7, 2, 6, 2, 7, 8 ]
[ "nonn", "nice" ]
A020521
[ 13, 8191, 22369621, 78536544841, 300239975158033, 1190112520884487200, 4.797324681010433e+21, 1.9495118728903626e+25, 7.953886119079086e+28, 3.2515361932116336e+32, 1.3305273388893e+36 ]
[ "nonn" ]
A308501
[ 1, 1, 2, 8, 56, 448, 4928, 64064, 896896, 14350336, 272656384, 5725784064, 125967249408, 3149181235200, 81878712115200, 2292603939225600, 71070722115993600, 2274263107711795200, 79599208769912830000, 2.945170724486775e+21, 1.1191648753049744e+23, 4.588575988750395e+24 ]
[ "nonn" ]
A189835
[ 0, 1, 4, 9, 16, 26, 36, 53, 64, 90, 100, 138, 144, 194, 200, 261, 256, 347, 324, 426, 416, 522, 484, 658, 576, 746, 712, 882, 784, 1060, 900, 1173, 1088, 1314, 1160, 1587, 1296, 1658, 1544, 1890, 1600, 2164, 1764, 2298, 2096, 2466, 2116, 2930, 2304, 2955, 2696 ]
[ "nonn" ]
A002402
[ 1, 8, 57, 1292, 7135, 325560, 4894715, 125078632, 1190664342, 137798986920, 1587893097945, 258558380321076, 3497709055775649, 50821738502398860, 1578753057237451000, 443765620067972150000, 7.78216296054537e+21, 2.7411630346411463e+24, 5.356461725732106e+25, 1.1003695992467215e+27 ]
[ "nonn" ]
A374743
[ 1, 1, 2, 4, 8, 15, 29, 55, 105, 198, 371, 690, 1280, 2364, 4353, 7981, 14568, 26466, 47876, 86264, 154896, 277236, 494675, 879924, 1560275, 2757830, 4859010, 8534420, 14945107, 26096824, 45446624, 78939432, 136773519, 236401194, 407614349, 701147189, 1203194421 ]
[ "nonn" ]
A089251
[ 1, 3, 5, 11, 13, 32, 31, 71, 83, 147, 140, 364, 273, 550, 681, 1108, 916, 2157, 1598, 3604, 3549, 5102, 4509, 11548, 8192, 13514, 15199, 24911, 18461, 45062, 28630, 59662, 56544, 78484, 79350, 167219, 99134, 175771, 189108, 331455, 215309 ]
[ "nonn" ]
A284915
[ 1, 21175, 123200, 877800, 2010624, 3080000, 6336000, 8316000, 0, 4435200, 8064000, 3696000, 0, 0, 2956800, 0, 0, 0, 0, 4435200 ]
[ "nonn", "fini", "full" ]
A174658
[ 0, 2, 6, 8, 16, 18, 20, 24, 26, 32, 46, 48, 52, 54, 56, 60, 62, 70, 72, 74, 78, 80, 86, 96, 98, 104, 130, 136, 138, 142, 144, 146, 154, 156, 160, 162, 164, 168, 170, 178, 180, 182, 186, 188, 194, 208, 210, 214, 216, 218, 222, 224, 232, 234, 236, 240, 242, 248, 258 ]
[ "base", "nonn" ]
A145677
[ 1, 1, 1, 1, 0, 2, 1, 0, 0, 3, 1, 0, 0, 0, 4, 1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 0, 6, 1, 0, 0, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 0, 0, 0, 8, 1, 0, 0, 0, 0, 0, 0, 0, 0, 9, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11 ]
[ "nonn", "tabl", "easy" ]
A018154
[ 1, 2, 3, 5, 8, 14, 24, 40, 68, 116, 196, 332, 563, 955, 1619, 2744, 4652, 7886, 13368, 22661, 38416, 65124, 110399, 187150, 317259, 537824, 911729, 1545580, 2620095, 4441632, 7529536, 12764206, 21638115 ]
[ "nonn" ]
A232193
[ 1, 3, 23, 55, 1901, 4277, 198721, 16083, 14097247, 4325321, 2132509567, 4527766399, 13064406523627, 905730205, 13325653738373, 362555126427073, 14845854129333884, 57424625956493830, 333374427829017300000, 922050973293317, 2.3638735542035088e+23 ]
[ "nonn", "frac" ]
A003001
[ 0, 10, 25, 39, 77, 679, 6788, 68889, 2677889, 26888999, 3778888999, 277777788888899 ]
[ "nonn", "nice", "base", "more", "hard" ]
A326566
[ 2, 1, 1, 2, 4, 14, 92, 1320, 73584, 51913039, 5176642542335, 4.3270778095435236e+21, 5.925518392771849e+37, 9.37980031038977e+66 ]
[ "nonn" ]
A093337
[ 1, 1, 1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 7, 8, 8, 9, 0, 0, 0, 0, 1, 2, 3, 3, 3, 4, 5, 5, 6, 6, 7, 7, 8, 9, 9, 9, 9, 1, 2, 2, 2, 3, 3, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 0, 1, 1, 1, 3, 3, 4, 4, 5, 5, 6, 7, 7, 8, 8, 9, 0, 0, 1, 2, 3, 3, 3, 4, 4, 5, 6, 6, 6, 7, 8, 9, 9, 0, 0, 2, 2, 4, 4, 5, 6, 6, 7, 7, 8, 9, 9 ]
[ "nonn", "base" ]
A285398
[ 1, 19, 452, 10948, 266300, 6484372, 157936172, 3847025764, 93707895260, 2282596837492, 55601016789068, 1354367059315396, 32990588541122684, 803607076375862400, 19574804963320800000, 476816346057854900000, 1.1614615234500987e+22, 2.8291665789482715e+23 ]
[ "nonn", "easy", "nice" ]
A036681
[ 2, 5, 14, 32, 71, 149, 304, 604, 1177, 2256, 4266, 7974, 14758, 27079, 49312, 89200, 160393, 286867, 510596, 904838, 1597091, 2808672, 4922820, 8601660, 14986730, 26042201, 45141410, 78067712, 134719931, 232014593, 398818552, 684322432 ]
[ "nonn", "easy" ]
A122903
[ 1, 3, 4, 12, 70, 90, 210 ]
[ "fini", "full", "nonn" ]
A058021
[ -2, -2, 5, 11, 59, 419, 839, 2503, 27701, 360337, 720703, 12252197, 232792559, 5354228879, 26771144371, 80313433159, 2329089562799, 72201776446757, 144403552893599, 5342931457063157, 219060189739591170, 9419588158802422000, 442720643463713800000 ]
[ "sign" ]
A218294
[ 1, 2, 10, 82, 866, 10482, 138698, 1957346, 29024642, 448005922, 7153738058, 117681081522, 1988787934818, 34465473701522, 611806834645642, 11118408274591938, 206835953956603400, 3939803761941599000, 76880490874589000000, 1.5380193744569392e+21 ]
[ "nonn" ]
A140804
[ 1, 4, 26, 120, 251, 471, 637, 1559, 2844, 5906, 7829, 7890, 17947, 17975, 26952, 29262, 31709, 54154, 102609, 114420, 162761, 168799, 231114, 235525, 323892, 350966, 525790, 678299, 708252, 734937, 927951, 1063197, 1387894, 1503684, 2128689, 2178662, 2238101, 2401400 ]
[ "nonn" ]
A044131
[ 29, 65, 101, 137, 173, 209, 245, 281, 317, 353, 389, 425, 461, 497, 533, 569, 605, 641, 677, 713, 749, 785, 821, 857, 893, 929, 965, 1001, 1037, 1109, 1145, 1181, 1217, 1253, 1289, 1325, 1361, 1397, 1433, 1469, 1505, 1541, 1577, 1613, 1649, 1685, 1721, 1757 ]
[ "nonn", "base" ]
A113292
[ 0, 2, -3, 6, -10, 19, -35, 72, -150, 343, -803, 2024, -5226, 14299, -40027, 117392, -351798, 1095735, -3483403, 11442896, -38326586, 132070827, -463565299, 1668391912, -6110374070, 22885849335, -87147853011, 338645273368, -1336767522026, 5375276276699 ]
[ "sign" ]
A104242
[ 6481, 144169, 324361, 400441, 784841, 16001681, 23042401, 67246889, 77447921, 84648649, 92169409, 96049801, 1254412769, 1638416641, 1742417689, 1960019881, 2016420449, 4752447961, 5382454289, 5664457121, 5760058081, 6051661009 ]
[ "base", "nonn" ]
A072832
[ 1, 1, 1, 2, 2, 3, 2, 3, 2, 8, 2, 8, 2, 9, 1, 5, 4, 5, 7, 3, 5, 5, 5, 10, 2, 3, 4, 8, 12, 5, 7, 7, 3, 7, 20, 2, 3, 2, 7, 8, 9, 3, 10, 2, 15, 2, 3, 2, 10, 5, 2, 13, 9, 27, 7, 3, 5, 15, 2, 15, 2, 5, 7, 12, 8, 10, 2, 7, 3, 2, 15, 2, 3, 7, 10, 5, 27, 2, 12, 5, 20, 2, 20, 2, 20, 2, 17, 17, 3, 2, 5, 12, 3 ]
[ "nonn", "easy" ]
A270964
[ 1, 281, 13297, 348523, 6807872, 113042841, 1709159987, 24469725009, 339634663517, 4638106688642, 62916588549562, 853199404241913, 11616795214297568, 159290998975659680, 2204454156023259100, 30838108887627520000, 436552647970998600000, 6.258905749718943e+21 ]
[ "nonn" ]
A045056
[ 8234, 8330, 8354, 8360, 8714, 8738, 8744, 8834, 8840, 8864, 10250, 10274, 10280, 10370, 10376, 10400, 10754, 10760, 10784, 10880, 16554, 16938, 17034, 17058, 17064, 18474, 18570, 18594, 18600, 18954, 18978, 18984 ]
[ "nonn", "base" ]
A120403
[ 3, 9, 15, 45, 225, 639, 1275, 4005, 675405, 2203959, 3075159, 6195234165, 77989711185, 4566262987329 ]
[ "nonn", "more" ]
A095223
[ 1, 3, 5, 8, 13, 144, 233, 2584, 4181, 46368, 75025, 14930352, 7778742049, 1.8547707689471987e+37, 5.583507329530046e+43 ]
[ "nonn" ]
A306263
[ 1, 2, 4, 6, 8, 10, 12, 16, 18, 20, 24, 32, 34, 36, 40, 42, 48, 60, 64, 66, 68, 72, 80, 84, 92, 96, 108, 116, 120, 126, 128, 132, 136, 144, 156, 160, 168, 172, 180, 184, 192, 204, 212, 216, 222, 228, 232, 240, 246, 252, 256, 264, 272, 276, 284, 288, 300, 310 ]
[ "nonn", "base" ]
A362803
[ 1, 6, 24, 48, 60, 84 ]
[ "nonn", "hard", "more" ]
A314914
[ 1, 5, 9, 14, 19, 25, 29, 35, 39, 43, 53, 53, 58, 64, 74, 69, 82, 82, 92, 92, 102, 97, 117, 111, 118, 121, 137, 125, 145, 139, 152, 150, 166, 151, 180, 168, 180, 178, 200, 179, 209, 197, 212, 207, 229, 207, 243, 225, 240, 236 ]
[ "nonn" ]
A379720
[ 1, 0, 0, 0, 0, 1, 3, 3, 6, 7, 11, 13, 20, 23, 33, 40, 54, 65, 87, 104, 136, 164, 209, 252, 319, 382, 477, 573, 707, 846, 1038, 1237, 1506, 1793, 2166, 2572, 3093, 3659, 4377, 5169, 6152, 7244, 8590, 10086, 11913, 13958, 16423, 19195, 22518, 26251, 30700, 35716 ]
[ "nonn" ]