id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A314658
[ 1, 5, 9, 13, 15, 22, 26, 34, 36, 41, 41, 49, 53, 62, 63, 68, 67, 76, 80, 90, 90, 95, 93, 103, 107, 118, 117, 122, 119, 130, 134, 146, 144, 149, 145, 157, 161, 174, 171, 176, 171, 184, 188, 202, 198, 203, 197, 211, 215, ...
[ "nonn" ]
A313340
[ 1, 4, 9, 16, 21, 23, 28, 34, 40, 45, 47, 53, 59, 65, 69, 70, 78, 83, 89, 94, 94, 103, 108, 113, 118, 118, 127, 132, 138, 143, 142, 152, 156, 162, 168, 165, 176, 181, 187, 193, 189, 200, 205, 212, 217, 212, 225, 230, 237,...
[ "nonn" ]
A205692
[ 3, 4, 3, 5, 4, 6, 3, 5, 7, 3, 5, 7, 9, 4, 6, 8, 4, 6, 8, 11, 3, 5, 7, 9, 10, 4, 6, 8, 11, 12, 3, 5, 7, 9, 10, 13, 3, 5, 7, 9, 10, 13, 15, 3, 5, 7, 9, 10, 13, 15, 16, 4, 6, 8, 11, 12, 14, 4, 6, 8, ...
[ "nonn" ]
A094310
[ 1, 2, 1, 6, 3, 2, 24, 12, 8, 6, 120, 60, 40, 30, 24, 720, 360, 240, 180, 144, 120, 5040, 2520, 1680, 1260, 1008, 840, 720, 40320, 20160, 13440, 10080, 8064, 6720, 5760, 5040, 362880, 181440, 120960, 90720, 72576, 60480, 51840, 453...
[ "nonn", "tabl" ]
A208907
[ 1, 1, 2, 1, 4, 4, 1, 6, 8, 8, 1, 8, 12, 20, 16, 1, 10, 16, 36, 44, 32, 1, 12, 20, 56, 84, 100, 64, 1, 14, 24, 80, 136, 212, 220, 128, 1, 16, 28, 108, 200, 376, 500, 484, 256, 1, 18, 32, 140, 276, 600, 936, 1188, ...
[ "nonn", "tabl" ]
A045059
[ 2050, 2056, 2080, 2176, 2560, 4106, 4130, 4136, 4226, 4232, 4256, 4610, 4616, 4640, 4736, 6146, 6152, 6176, 6272, 6656, 8198, 8201, 8203, 8206, 8210, 8216, 8225, 8227, 8228, 8236, 8242, 8248, 8258, 8264, 8288, 8321 ]
[ "nonn", "base" ]
A115878
[ 0, 0, 1, 0, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 4, 2, 1, 2, 1, 1, 4, 1, 1, 4, 2, 1, 3, 1, 1, 4, 1, 3, 4, 1, 4, 2, 1, 1, 4, 4, 1, 4, 1, 1, 7, 1, 1, 7, 2, 2, 4, 1, 1, 3, 4, 4, 4, 1, 1, 4, 1, 1, 7, 4...
[ "nonn", "easy" ]
A167832
[ 0, 2, 4, 6, 8, 9, 9, 9, 9, 9, 20, 22, 24, 26, 28, 29, 29, 29, 29, 29, 40, 42, 44, 46, 48, 49, 49, 49, 49, 49, 60, 62, 64, 66, 68, 69, 69, 69, 69, 69, 80, 82, 84, 86, 88, 89, 89, 89, 89, 89, 99, 99, 99, 99, 99...
[ "base", "nonn", "look" ]
A225504
[ 3, 5, 7, 13, 29, 73, 233, 883, 4049, 22013, 140269, 1036183, 8771489, 84270997, 910550899, 10977409981, 146618640533, 2155882170713, 34701120973507, 608312884303213, 11560371513545908, 237170393590520350, 5232858369551752000, 123736201926723350000 ]
[ "nonn", "hard", "more" ]
A138223
[ 1, 2, 3, 4, 1, 3, 1, 4, 3, 5, 1, 6, 1, 2, 5, 4, 1, 6, 1, 5, 3, 2, 1, 8, 5, 2, 3, 7, 1, 10, 1, 8, 3, 2, 5, 9, 1, 2, 3, 8, 1, 7, 1, 4, 5, 2, 1, 12, 1, 5, 3, 4, 1, 9, 5, 8, 3, 2, 1, 12, 1, 2, 7, ...
[ "nonn" ]
A259635
[ 18, 29, 69, 133, 236, 472, 940, 1781, 3433, 6725, 13008, 25088, 48696, 94445, 182717, 353893, 685924, 1328520, 2572916, 4984581, 9656065, 18703333, 36229992, 70182768, 135948832, 263342141, 510120437, 988149701, 1914124956, 3707828408 ]
[ "nonn" ]
A359183
[ 1, 2, 54, 13122, 15258789062500 ]
[ "nonn", "base" ]
A290573
[ 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 5, 5, 5, 5, 5, 7, 7, 7, 7, 7, 9, 9, 9, 9, 9, 12, 12, 12, 12, 12, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 25, 25, 25, 25, 25, 31, 31, 31, 31, 31, 37, 37, 37, ...
[ "nonn" ]
A144505
[ 1, 1, -1, 2, 1, -5, 7, -1, 9, -30, 37, 1, -14, 81, -229, 266, -1, 20, -175, 835, -2165, 2431, 1, -27, 330, -2330, 9990, -24576, 27007, -1, 35, -567, 5495, -34300, 137466, -326515, 353522, 1, -44, 910, -11522, 97405, -561386, 21481...
[ "sign", "tabf" ]
A264750
[ 5, 29, 99, 259, 574, 1134, 2058, 3498, 5643, 8723, 13013, 18837, 26572, 36652, 49572, 65892, 86241, 111321, 141911, 178871, 223146, 275770, 337870, 410670, 495495, 593775, 707049, 836969, 985304, 1153944, 1344904, 1560328, 1802493, 2073813, 2376843...
[ "nonn", "easy" ]
A367437
[ 0, 0, 1, 4, 10, 28, 38, 67, 80, 115, 139, 186, 203, 288, 306 ]
[ "nonn", "more" ]
A289096
[ 1, 10, 111, 1110, 11101, 111110, 1111101, 11111110, 111111101, 1111111110, 11111111101, 111111111110, 1111111111101, 11111111111110, 111111111111101, 1111111111111110, 11111111111111100, 111111111111111100, 1111111111111111000, 11111111111111110000 ]
[ "nonn", "easy" ]
A269338
[ 24, 1880, 152922, 13745475, 1301306034, 128342085219, 13047193985189, 1357312565492416, 143782288933149000, 15453753021813990000 ]
[ "nonn" ]
A244244
[ 1, 8, 29, 71, 142, 245, 384, 567, 792, 1069, 1401, 1796, 2260, 2801, 3427, 4150, 4981, 5925, 7004, 8222, 9602, 11151, 12895, 14838, 17016, 19430, 22120, 25090, 28385, 32004, 36004, 40384, 45203, 50463, 56231, 62506, 69367, 76809, 84919, 9...
[ "nonn" ]
A275751
[ 1, 1, 4, 19, 92, 446, 2150, 10280, 48761, 229558, 1073278, 4986624, 23037102, 105877968, 484337300, 2206188412, 10010589904, 45264063504, 204016241794, 916898737038, 4109984712933, 18379240912034, 82012499946246, 365245641944278, 1623757696702586, 7207073607368924, ...
[ "sign" ]
A334879
[ 1, -3, -6, -1, -15, 15, -28, -3, -9, 35, -66, 6, -91, 63, 60, -9, -153, 27, -190, 15, 105, 143, -276, 21, -100, 195, -54, 28, -435, -75, -496, -27, 231, 323, 210, 18, -703, 399, 312, 55, -861, -105, -946, 66, 135, 575, -1128...
[ "sign" ]
A175042
[ 12, 11, 7, 12, 29, 17, 19, 20, 4, 17, 7, 20, 27, 29, 25, 24, 12, 5, 21, 29, 17, 17, 32, 28, 27, 10, 5, 17, 6, 30, 29, 6, 5, 18, 21, 10, 9, 6, 9, 26, 5, 9, 9, 16, 2, 9, 16, 9, 12, 25, 6, 21, 18, 15, 6, 6, ...
[ "nonn", "word" ]
A228952
[ 1, 2, 5, 14, 38, 92, 216, 518, 1165, 2641, 5981, 13215, 28880, 62481, 133539, 281878, 595867, 1257995, 2656439, 5585174, 11751388, 24708442, 51644779, 107729838, 224507391, 467923765, 971364960, 2016542071 ]
[ "nonn" ]
A372775
[ 2, 1, 8, 1, 3, 4, 4, 6, 5, 5, 1, 3, 4, 5, 9, 8, 3, 3, 9, 3, 8, 9, 1, 4, 8, 4, 5, 6, 6, 7, 3, 9, 9, 1, 3, 2, 4, 6, 6, 5, 0, 8, 6, 8, 8, 5, 1, 6, 6, 7, 5, 1, 0, 9, 4, 3, 6, 8, 3, 8, 5, 3, 0, 3...
[ "nonn", "cons" ]
A285917
[ 1, 6, 11, 30, 52, 126, 219, 510, 896, 2046, 3632, 8190, 14666, 32766, 59099, 131070, 237832, 524286, 956196, 2097150, 3841586, 8388606, 15425136, 33554430, 61908562, 134217726, 248377154, 536870910, 996183062, 2147483646, 3994427099, 8589934590, 160130...
[ "nonn" ]
A334105
[ 127, 129, 133, 139, 141, 147, 161, 163, 171, 173, 177, 189, 191, 197, 199, 201, 203, 207, 209, 211, 213, 215, 217, 223, 229, 231, 235, 237, 243, 245, 247, 253, 254, 258, 259, 261, 263, 266, 269, 271, 273, 277, 278, 279, 282, 2...
[ "nonn" ]
A220672
[ -14, 6, 5, -12, 3, 46, -95, 16, 75, -69, 24, -3, 106, -520, 928, -607, -351, 894, -651, 234, -42, 3, 186, -1600, 5840, -11355, 11005, -1110, -9615, 11580, -6906, 2433, -513, 60, -3, 286, -3775, 22360, -75595, 153515, -177565, 77115, ...
[ "sign", "tabf" ]
A165694
[ 1, 43, 1806, 75852, 3185784, 133802928, 5619722976, 236028364992, 9913191329664, 416354035844985, 17486869505451444, 734448519227368700, 30846837807482620000, 1.2955671879114618e+21, 5.441382189216345e+22 ]
[ "nonn" ]
A071117
[ 1, 7, 8, 10, 18, 24, 38, 42, 52, 54, 64, 100, 107, 112, 113, 114, 135, 144, 145, 150, 151, 159, 162, 172, 177, 184, 189, 196, 197, 202, 213, 214, 223, 228, 230, 232, 238, 239, 240, 252, 255, 264, 267, 272, 278, 283, 302, 3...
[ "base", "easy", "nonn" ]
A187390
[ 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 61, 62, 63, 64, ...
[ "nonn" ]
A219508
[ 1, 3, 16, 17, 72, 577, 2312, 665857, 2663432, 886731088897, 3546924355592, 1.5725840480329185e+24, 6.290336192131674e+24, 4.946041176255202e+48 ]
[ "nonn", "easy" ]
A116637
[ 1, 2, 2, 4, 6, 14, 24, 60, 110, 286, 546, 1456, 2856, 7752, 15504, 42636, 86526, 240350, 493350, 1381380, 2861430, 8064030, 16829280, 47682960, 100134216, 284997384, 601661144, 1719031840, 3645533040, 10450528048, 22249511328, 63967345068 ]
[ "nonn" ]
A321457
[ 1, 0, 0, 1, 0, 0, 1, 0, 0, 2, 0, 1, 2, 0, 2, 2, 0, 3, 3, 1, 4, 4, 2, 5, 4, 3, 7, 7, 5, 9, 10, 7, 11, 14, 9, 15, 19, 12, 22, 23, 17, 30, 29, 23, 41, 37, 32, 54, 46, 45, 68, 59, 63, 85, 79, 85, 107, 103, ...
[ "nonn" ]
A269827
[ 6400, 5145736, 2472983556, 1109236460528, 467693538063508, 190428267451649470, 75641344262475710000, 2.9473512707098126e+22, 1.132063657999748e+25, 4.297304706560968e+27 ]
[ "nonn" ]
A368712
[ 0, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2...
[ "nonn", "easy" ]
A361176
[ 256, 768, 1280, 1792, 2304, 2816, 3328, 3840, 4352, 4864, 5376, 5888, 6400, 6561, 6912, 7424, 7936, 8448, 8960, 9472, 9984, 10496, 11008, 11520, 12032, 12544, 13056, 13122, 13568, 14080, 14592, 15104, 15616, 16128, 16640, 17152, 17664, 18176,...
[ "nonn" ]
A389819
[ 1, 1, 2, 24, 180, 1740, 25320, 399000, 7165200, 152122320, 3583621440, 93240987840, 2683990330560, 84155963411520, 2855714558336640, 104486146324560000, 4096754099652614000, 171361024153788300000, 7.619883634974388e+21, 3.589046962423555e+23 ]
[ "nonn" ]
A142992
[ 1, 1, 1, 1, 3, 1, 1, 9, 5, 1, 1, 19, 25, 7, 1, 1, 33, 85, 49, 9, 1, 1, 51, 225, 231, 81, 11, 1, 1, 73, 501, 833, 489, 121, 13, 1, 1, 99, 985, 2471, 2241, 891, 169, 15, 1, 1, 129, 1765, 6321, 8361, 4961, 1469, 225...
[ "easy", "nonn", "tabl" ]
A384177
[ 1, 2, 3, 5, 10, 19, 35, 62, 109, 197, 364, 677, 1251, 2288, 4143, 7443, 13318, 23837, 42809, 77216, 139751, 253293, 458800, 829237, 1494169, 2683316, 4804083, 8580293, 15301324, 27270061, 48607667, 86696300, 154758265, 276453311, 494050894, 88292...
[ "nonn" ]
A192686
[ 11, 222, 3333, 44444, 555555, 6666666, 77777777, 888888888, 9999999999, 11888888888, 119999999999, 222888888888, 2229999999999, 3333888888888, 33339999999999, 44444888888888, 444449999999999, 555555888888888, 5555559999999999, 6666666888888888 ]
[ "nonn" ]
A322647
[ 1, 10, 90, 1032, 9939, 99886, 1001246, 10001665, 100012683, 1000007824 ]
[ "nonn", "base", "more" ]
A224987
[ 1, 2, 3, 20, 21, 22, 23, 24, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 13092, 13093, 13094, 13095, 13096, 13097, 13098, 13099, 13100, 13101, 13102, 13103, 13104, 13105, 13106, 13107, 13232, 13233, 13234, 1323...
[ "nonn" ]
A353682
[ 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1...
[ "nonn" ]
A364288
[ 1, 1, 0, 2, -2, 0, -8, 4, 4, -4, -20, 0, -50, -16, 2, 8, -110, 8, -236, -8, -8, -40, -488, 0, 14, -100, 18, -32, -994, 4, -2016, 16, -28, -220, 8, 16, -4058, -472, -86, -16, -8150, -16, -16340, -80, 20, -976, -32720, 0, ...
[ "sign" ]
A005029
[ 13, 26, 52, 104, 208, 416, 832, 1664, 3328, 6656, 13312, 26624, 53248, 106496, 212992, 425984, 851968, 1703936, 3407872, 6815744, 13631488, 27262976, 54525952, 109051904, 218103808, 436207616, 872415232, 1744830464, 3489660928, 6979321856, 13958643712 ]
[ "nonn", "easy" ]
A268991
[ 13, 103, 805, 6009, 43512, 308112, 2144780, 14730784, 100087792, 674045392, 4505925696, 29933341056, 197782652096, 1300744853760, 8519586895104, 55600022810880, 361688403251200, 2346083095244800, 15178387509332992 ]
[ "nonn" ]
A307639
[ 9, 8, 15, 14, 21, 20, 21, 10, 9, 8, 25, 24, 27, 26, 28, 9, 28, 27, 26, 9, 28, 27, 26, 25, 28, 27, 26, 25, 8, 9, 28, 27, 26, 25, 8, 21, 10, 9, 33, 32, 33, 8, 21, 10, 33, 32, 25, 8, 21, 10, 33, 32, 25, 28, 9, ...
[ "nonn", "tabf" ]
A249232
[ 183696, 1044612, 5967084, 34184700, 196210998, 1127486210, 6483080144, 37310369094, 214752404734, 1236199073642, 7116616481920, 40972381884884, 235906135763722, 1358433992018630, 7822570497770876, 45047193139633736 ]
[ "nonn" ]
A027416
[ 1, 1, 0, 1, 1, 3, 3, 11, 13, 47, 61, 235, 341, 1301, 1983, 7741, 12650, 48629, 82826, 317955, 564225, 2144505, 3926353, 14828074, 27940136, 104636890, 201837109, 751065460, 1479817181, 5469566585, 10975442036, 40330829030, 82270184950 ]
[ "nonn" ]
A186576
[ 1, 1, 2, 6, 20, 72, 274, 1083, 4402, 18283, 77248, 330966, 1434527, 6278831, 27712795, 123203934, 551208007, 2479863162, 11212189575, 50918544674, 232161960449, 1062356169341, 4877198070463, 22457825237584, 103693977154771 ]
[ "nonn" ]
A308791
[ 541, 709, 2389, 3121, 3529, 4561, 4861, 5869, 7069, 8821, 9001, 10789, 12421, 12781, 13309, 14341, 14869, 16981, 18289, 19249, 19309, 19429, 19501, 20389, 20809, 20929, 21649, 22741, 23629, 24181, 25189, 26821, 27109, 27409, 28669, 30181, 30469...
[ "nonn" ]
A248127
[ 2, 4, 5, 10, 31, 72, 75, 80, 162, 270, 383, 640, 1250, 2000, 2160, 3430, 4000, 5000, 5120, 7290, 10000, 13310, 17280, 21970, 27440, 28875, 31000, 33750, 40960, 49130, 58320, 68590, 72000, 75000, 80000, 92610 ]
[ "nonn", "base" ]
A245296
[ 1, 0, 4, 4, 2, 5, 7, 9, 0, 9, 3, 0, 9, 7, 9, 5, 1, 4, 3, 4, 4, 5, 3, 6, 9, 6, 1, 7, 1, 5, 5, 7, 0, 2, 5, 8, 3, 0, 8, 0, 4, 2, 0, 8, 0, 4, 2, 0, 2, 5, 3, 7, 2, 0, 7, 7, 5, 7, 6, 1, 3, 4, 1, 5...
[ "nonn", "cons", "easy" ]
A024595
[ 1, 0, 0, 1, 2, 3, 5, 0, 0, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1598, 2586, 4184, 6770, 10954, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181...
[ "nonn" ]
A206367
[ 3, 15, 18, 36, 72, 255, 1152, 2709, 65535, 294912, 4294967295, 4380480000 ]
[ "nonn", "more" ]
A055402
[ 1, 2, 3, 4, 5, 6, 7, 15, 23, 50, 114, 330, 1330, 10591, 215970, 19464802, 16542386125, 409477218238718, 1.594640520554911e+21, 1.2254971660196485e+31, 8.256321288165573e+45 ]
[ "nonn" ]
A021618
[ 0, 0, 1, 6, 2, 8, 6, 6, 4, 4, 9, 5, 1, 1, 4, 0, 0, 6, 5, 1, 4, 6, 5, 7, 9, 8, 0, 4, 5, 6, 0, 2, 6, 0, 5, 8, 6, 3, 1, 9, 2, 1, 8, 2, 4, 1, 0, 4, 2, 3, 4, 5, 2, 7, 6, 8, 7, 2, 9, 6, 4, 1, 6, 9...
[ "nonn", "cons", "easy" ]
A250775
[ 576, 1026, 1622, 2396, 3412, 4798, 6810, 9960, 15272, 24794, 42622, 76948, 144156, 277014, 541058, 1067360, 2118064, 4217458, 8414118, 16805196, 33584996, 67142126, 134253802, 268474456, 536912952, 1073787018, 2147532110, 4295019140 ]
[ "nonn" ]
A147180
[ 1, 1, 1, 1, 1, 1, 1, 1, 17, 17, 53, 53, 329, 329, 3195, 3195, 60697, 60697, 1822001, 1822001, 62512113, 62512113 ]
[ "nonn" ]
A133735
[ 1, 2, 0, 3, 0, 1, 4, 0, 2, 1, 5, 0, 3, 2, 2, 6, 0, 4, 3, 4, 2, 7, 0, 5, 4, 6, 4, 4, 8, 0, 6, 5, 8, 6, 8, 4, 9, 0, 7, 6, 10, 8, 12, 8, 7, 10, 0, 8, 7, 12, 10, 16, 12, 14, 8 ]
[ "nonn", "tabl" ]
A147877
[ 1, 1, 2, 3, 5, 9, 15, 25, 43, 70, 113, 181, 283, 436, 666, 999, 1483, 2179, 3166, 4556, 6504, 9200, 12918, 18011, 24938, 34308, 46928, 63815, 86324, 116187, 155626, 207502, 275491, 364226, 479660, 629305, 822655, 1071694, 1391531, 1801041...
[ "nonn" ]
A048430
[ 7, 7, 212, 212, 377773, 519915, 2332332, 65144156, 309171903, 10319091301, 58981418985, 1833641463381, 1992590952991, 47417877871474, 704928828829407, 15508087878080552, 89528359195382600, 1823627796977263400 ]
[ "nonn", "frac", "base", "more" ]
A274664
[ 3, -11, 129, -1460, 165655, -187926, 2131986, -24186985, 274396853, -3112981337, 35316195134, -400655674969, 4545364223858, -51566312967180, 585010243859443, -6636832570098735, 75293632933556670, -854192282305658900, 9690652804526377000, -109938656346079220000, 1.247233638742...
[ "sign", "easy" ]
A159157
[ 1, 37, 895, 18258, 344229, 6263343, 112591118, 2027487409, 36897337697, 682690905265 ]
[ "nonn" ]
A099663
[ 19, 211, 2221, 22193, 222199, 2222219, 22222199, 222222193, 2222222137, 22222222189, 222222222169, 2222222222197, 22222222222201, 222222222222151, 2222222222222203, 22222222222222150, 222222222222222200, 2222222222222222000, 22222222222222220000, 222222222222222230000, 2.2222...
[ "base", "nonn" ]
A304023
[ 0, 20, 210, 2100, 21010, 210110, 2101100, 21011000, 210110000, 2101100010, 21011000110, 210110001100, 2101100011010, 21011000110100, 210110001101000, 2101100011010010, 21011000110100110, 210110001101001100, 2101100011010011100, 21011000110100110000, 210110001101001100000 ]
[ "nonn", "base" ]
A226837
[ 1, 2, 18, 380, 14980, 969192, 94438344, 13027041456, 2427908305680, 589565047637280, 181202801029385000, 68849741925654266000, 3.171655920903603e+22, 1.7426989484519713e+25, 1.1263849940254797e+28, 8.462659472067485e+30 ]
[ "nonn" ]
A216530
[ 1, 7, 19, 31, 49, 61, 67, 109, 133, 139, 157, 163, 211, 217 ]
[ "nonn" ]
A321854
[ 1, 1, 0, 1, 1, 1, 0, 0, 1, 0, 2, 1, 0, 0, 0, 0, 1, 1, 3, 1, 0, 2, 0, 4, 1, 0, 0, 0, 3, 1, 0, 0, 0, 0, 0, 0, 1, 0, 2, 2, 5, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 4, 1, 0, 0, 0, 6...
[ "nonn", "tabf" ]
A374724
[ 1, 2, 3, 4, 1, 1, 2, 1, 4, 3, 2, 2, 3, 4, 1, 2, 3, 3, 4, 3, 2, 1, 4, 4, 1, 2, 3, 4, 1, 1, 1, 2, 3, 4, 1, 1, 2, 1, 4, 3, 2, 2, 1, 2, 3, 4, 1, 1, 4, 3, 2, 1, 4, 4, 3, 4, 1, 2, 3, 3, 2, 1, 4, 3...
[ "nonn", "easy" ]
A207465
[ 18, 324, 1504, 11760, 71928, 491948, 3205650, 21396734, 141284580, 937096086, 6200491878, 41068721206, 271907375738, 1800712574474, 11924220367590, 78964416331158, 522900715972816, 3462653747527630, 22929637855256256 ]
[ "nonn" ]
A240016
[ 1, 0, 1, 1, 2, 2, 4, 4, 7, 8, 12, 14, 21, 24, 34, 41, 54, 66, 86, 105, 133, 164, 203, 250, 308, 376, 458, 560, 675, 821, 986, 1192, 1423, 1716, 2037, 2445, 2894, 3455, 4076, 4849, 5700, 6752, 7921, 9342, 10930, 12850, 14994,...
[ "nonn" ]
A156415
[ 1, 120, 0, 0, 14564760, 66083040, 0, 0, 2511725250, 3360660500, 0, 0, 105602337600, 192407274081, 0, 0, 1556654915420, 1665635124840, 0, 0 ]
[ "nonn" ]
A325811
[ 1, 2, 3, 2, 3, 4, 3, 2, 5, 6, 3, 7, 3, 8, 9, 2, 3, 10, 3, 11, 12, 13, 3, 14, 15, 16, 17, 18, 3, 19, 3, 2, 20, 21, 22, 23, 3, 24, 25, 26, 3, 27, 3, 28, 29, 30, 3, 31, 32, 33, 34, 35, 3, 36, 37, 38, 39, 4...
[ "nonn" ]
A100564
[ 3, 5, 17, 23, 29, 53, 83, 89, 113, 149, 173, 197, 257, 263, 269, 293, 317, 353, 359, 383, 389, 419, 449, 467, 479, 503, 509, 557, 563, 569, 593, 617, 653, 659, 677, 683, 773, 797, 809, 827, 857, 863, 887, 947, 977, 983, 1049...
[ "nonn" ]
A173255
[ 4076863487, 641194278911, 16260080320511, 174339220049999, 420586798122287, 388931440807883100, 1715002302605720000, 2051821692518400000, 4617724356355050000, 5873208011345484000, 58698987193722270000, 76578949263222460000, 180701862444484660000, 562030251929933700000 ]
[ "nonn" ]
A219595
[ 3, 3, 3, 6, 7, 6, 10, 18, 21, 10, 15, 34, 84, 46, 15, 21, 55, 233, 264, 87, 21, 28, 81, 550, 1114, 705, 151, 28, 36, 112, 1188, 4152, 4350, 1739, 247, 36, 45, 148, 2415, 14793, 26006, 16117, 4129, 386, 45, 55, 189, 4684, ...
[ "nonn", "tabl" ]
A130954
[ 0, 1, 3, 2, 7, 6, 8, 4, 5, 17, 18, 16, 15, 14, 20, 19, 22, 9, 13, 21, 10, 11, 12, 45, 46, 48, 49, 50, 44, 47, 43, 40, 39, 42, 41, 37, 38, 54, 55, 53, 52, 51, 61, 60, 63, 23, 27, 62, 36, 34, 33, 57, 56, 64, 24...
[ "nonn" ]
A270773
[ 21147, 158269, 1205911, 9413380, 75528808, 623920659, 5310053713, 46567171489, 420709044049, 3914022281500, 37477219255928, 369100763875603, 3736539797544947, 38855043652790340, 414747029924640450, 4541354700620110000, 50976255126737190000 ]
[ "nonn" ]
A386545
[ 1, 0, 4, 5, 6, 4, 7, 5, 6, 3, 5, 4, 4, 3, 7, 7, 7, 8, 6, 4, 4, 4, 7, 3, 7, 2, 9, 3, 8, 1, 1, 7, 2, 6, 8, 3, 0, 4, 9, 1, 2, 2, 4, 6, 6, 7, 1, 0, 4, 7, 1, 7, 5, 5, 0, 9, 1, 4, 9, 0, 6, 1, 0, 8...
[ "nonn", "cons", "easy" ]
A191075
[ 2, 11, 13, 23, 31, 37, 43, 47, 61, 67, 73, 83, 89, 97, 101, 103, 109, 113, 131, 149, 151, 157, 173, 179, 191, 211, 227, 229, 233, 269, 283, 313, 337, 347, 349, 353, 367, 397, 401, 409, 419, 421, 431, 443, 457, 463, 467, 50...
[ "nonn", "easy" ]
A128081
[ 1, 1, 1, 3, 15, 97, 815, 8447, 104099, 1487477, 24188525, 441170745, 8920418105, 198066401671, 4791181863221, 125421804399845, 3532750812110925, 106538929613501940, 3425126166609830400, 116938867144129020000, 4.22554302123597e+21, 1.6111328552202357e+23 ]
[ "nonn" ]
A232941
[ 3, 6, 6, 12, 12, 12, 24, 26, 26, 24, 48, 56, 84, 56, 48, 96, 120, 252, 252, 120, 96, 192, 258, 774, 1048, 774, 258, 192, 384, 554, 2360, 4458, 4458, 2360, 554, 384, 768, 1190, 7212, 18850, 26644, 18850, 7212, 1190, 768, 1536, ...
[ "nonn", "tabl" ]
A349093
[ 1, 4, 6, 4, 10, 6, 14, 6, 9, 10, 22, 6, 26, 14, 10, 8, 34, 9, 38, 10, 14, 22, 46, 6, 15, 26, 9, 14, 58, 10, 62, 8, 22, 34, 14, 9, 74, 38, 26, 10, 82, 14, 86, 22, 10, 46, 94, 8, 21, 15, 34, 26, 106, 9, 22, 1...
[ "nonn" ]
A085068
[ 1, 3, 2, 1, 2, 9, 1, 8, 3, 1, 7, 2, 1, 2, 6, 1, 3, 4, 1, 5, 2, 1, 2, 3, 1, 6, 4, 1, 3, 2, 1, 2, 4, 1, 5, 3, 1, 4, 2, 1, 2, 4, 1, 3, 8, 1, 4, 2, 1, 2, 3, 1, 4, 7, 1, 3, 2, 1, 2, 7, 1, 4, 3, 1...
[ "nonn" ]
A173833
[ 7, 97, 997, 9997, 99997, 999997, 9999997, 99999997, 999999997, 9999999997, 99999999997, 999999999997, 9999999999997, 99999999999997, 999999999999997, 9999999999999996, 100000000000000000, 1000000000000000000, 10000000000000000000, 100000000000000000000, 1e+21 ]
[ "nonn", "easy" ]
A222827
[ 11, 1154, 163059, 23664739, 3489313607, 520160675223, 78214529020708, 11843031775865124, 1803481044258862300, 275936349234703900000, 4.238624605284027e+22, 6.532812606151325e+24 ]
[ "nonn" ]
A181426
[ 1, 17, 49, 59, 979, 91, 167, 731, 5111, 517, 1817, 6071, 109, 18241, 22289, 2771, 131, 28823, 67, 51619, 11911, 34891, 15557, 257, 1949, 22313, 2267, 14123, 153931, 5273999, 1, 3167, 45091, 3569, 268309, 126947, 4217, 127, 369641, 201679,...
[ "nonn", "frac" ]
A080093
[ 0, 1, 1, 2, 11, 41, 81, 715, 3425, 8861, 98253, 580317, 1816640, 24011157, 166888165, 608035190, 9264071767, 73600798037, 304238004061, 5224266196935, 46499892038437, 214184962059157, 4078345814329009, 40073660040755336 ]
[ "nonn" ]
A247341
[ 1, 1, 1, 1, 1, 4, 1, 1, 2, 3, 1, 1, 4, 4, 6, 30, 3, 1, 6, 1, 32, 3, 3, 2, 22, 1, 6, 1, 2, 14, 7, 1, 10, 1, 2, 6, 3, 4, 2, 5, 2, 6, 1, 1, 37, 53, 53, 13, 64, 1, 67, 1, 45, 29, 17, 12, 14, 1, 2, 5, ...
[ "nonn" ]
A224677
[ 1, 1, 2, 7, 40, 351, 4876, 104748, 3487153, 179921982, 14387581923, 1783124902639, 342504341570010, 101962565961894430, 47044167891731685000, 3.364040268677001e+22, 3.728266426707828e+25, 6.403878063365406e+28, 1.7047846543065937e+32 ]
[ "nonn" ]
A335232
[ 1, 6, 40, 184, 280, 16, 8, 26800, 4376, 416, 16, 27488, 536, 587640, 10192, 128 ]
[ "nonn", "more", "hard" ]
A178963
[ 1, 1, 1, 1, 3, 9, 19, 99, 477, 1513, 11259, 74601, 315523, 3052323, 25740261, 136085041, 1620265923, 16591655817, 105261234643, 1488257158851, 17929265150637, 132705221399353, 2172534146099019, 30098784753112330, 254604707462013570, 4736552519729393000, 7418057908...
[ "nonn", "changed" ]
A160737
[ 0, 4, 743, 6732, 30046, 94100, 237429, 517468, 1014332, 1834596, 3115075, 5026604, 7777818, 11618932, 16845521, 23802300, 32886904, 44553668, 59317407, 77757196, 100520150, 128325204, 161966893, 202319132, 250338996, 307070500, 373648379 ]
[ "nonn", "easy" ]
A083875
[ 1, 2, 4, 5, 6, 7, 10, 11, 12, 14, 15, 19, 20, 21, 22, 26, 28, 30, 33, 34, 35, 36, 39, 40, 42, 44, 45, 48, 50, 51, 55, 56, 60, 65, 66, 68, 70, 76, 77, 78, 80, 84, 85, 87, 88, 91, 95, 104, 105, 110, 114, 115, 119, ...
[ "nonn" ]
A385194
[ 0, 1, -1, 2, 37, -1, 29, 3, -1, 38, -1, -1, 33, 30, -1, 4, 14, -1, 25, 39, -1, -1, 6, -1, 35, 34, -1, 31, 9, -1, 33, 5, -1, 12, 28, -1, 17, 25, -1, 40, 30, -1, 13, -1, -1, 7, 19, -1, 18, 36, -1, 35, 28, -1, -...
[ "sign", "base" ]
A268105
[ 4, 81, 4096, 378225, 56791296, 12650850576, 3926389806144, 1621309443347169, 859957083064464100, 569966660957291540000, 4.61690884178406e+23, 4.488236714016044e+26, 5.157287929018526e+29 ]
[ "nonn" ]
A193878
[ 8, 364, 15391, 2002035, 1435357131, 5135093341467 ]
[ "nonn" ]
A132946
[ 13, 20, 35, 37, 39, 83, 86, 221, 276, 198, 303, 222, 466, 368, 417, 1439, 1334, 1831, 7841, 4710, 6486, 5900, 4853, 2240, 1237, 5039, 4903, 7927, 20253, 13404, 24127, 46007, 43014, 259691, 607337, 453941, 474549, 1741702, 1866968, 1507781...
[ "nonn" ]
A334788
[ 6, 24, 30, 54, 60, 96, 84, 150, 210, 216, 240, 294, 270, 384, 486, 336, 600, 630, 726, 840, 864, 750, 924, 1014, 960, 1176, 1320, 1350, 546, 1536, 1386, 1500, 1734, 1560, 1890, 1944, 990, 1344, 2166, 2340, 2400, 2646, 2730, 2904, ...
[ "nonn" ]