id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A052799
[ 0, 0, 0, 0, 0, 0, 720, 5040, 36960, 302400, 2761920, 27941760, 310495680, 3760922880, 49324923648, 696388492800, 10530709862400, 169811234611200, 2908629247795200, 52738216760033280, 1009115747652096000 ]
[ "easy", "nonn" ]
A323120
[ 0, 0, 2, 3, 12, 23, 58, 123, 266, 557, 1168, 2400, 4911, 9982, 20196, 40643, 81499, 162899, 324678, 645404, 1280042, 2533565, 5005449, 9872464, 19442206, 38234945, 75096856, 147324049, 288705896, 565201569, 1105475313, 2160338661, 4218403428, 8230986025 ]
[ "nonn" ]
A055847
[ 1, 6, 49, 392, 3136, 25088, 200704, 1605632, 12845056, 102760448, 822083584, 6576668672, 52613349376, 420906795008, 3367254360064, 26938034880512, 215504279044096, 1724034232352768, 13792273858822144, 110338190870577150 ]
[ "nonn", "easy" ]
A158369
[ 578, 2308, 5190, 9224, 14410, 20748, 28238, 36880, 46674, 57620, 69718, 82968, 97370, 112924, 129630, 147488, 166498, 186660, 207974, 230440, 254058, 278828, 304750, 331824, 360050, 389428, 419958, 451640, 484474, 518460, 553598, 589888 ]
[ "nonn", "easy" ]
A210788
[ 4, 15, 15, 53, 176, 53, 170, 1533, 1533, 170, 497, 8824, 21379, 8824, 497, 1407, 40038, 142627, 142627, 40038, 1407, 3962, 167910, 748627, 1115472, 748627, 167910, 3962, 10867, 710895, 3846906, 8039420, 8039420, 3846906, 710895, 10867, 30956, 3139374 ]
[ "nonn", "tabl" ]
A263480
[ 1, 13, 141, 1017, 5671, 36695, 274919, 1905346, 11961897, 70484777, 393138130, 2099243511, 11182203514, 61491912211, 342906589613, 1849155959180, 9348828582989, 44293571012946, 201612389814511, 924729895792089, 4608967720196409, 26924559367277144 ]
[ "nonn", "base" ]
A062344
[ 1, 1, 2, 1, 4, 6, 1, 6, 15, 20, 1, 8, 28, 56, 70, 1, 10, 45, 120, 210, 252, 1, 12, 66, 220, 495, 792, 924, 1, 14, 91, 364, 1001, 2002, 3003, 3432, 1, 16, 120, 560, 1820, 4368, 8008, 11440, 12870, 1, 18, 153, 816, 3060, 8568, 18564, 31824, 43758, 48620 ]
[ "nonn", "tabl" ]
A308132
[ 0, 1, 5, 490, 31629560 ]
[ "nonn", "more", "hard" ]
A305722
[ 1, 129, 2945, 29953, 187137, 845185, 3032705, 9173505, 24331777, 58161793, 127791489, 261902081, 506298625, 931299201, 1641303169, 2786931713, 4580166657, 7312946305, 11379709825, 17304414465, 25772582657, 37668968833, 54121468545, 76551925249 ]
[ "nonn" ]
A180507
[ 3, 8, 12, 144, 1020, 8040, 13860, 34840, 729180, 1728240, 3232060, 17576520, 39279240, 85184880, 117649980, 778689840, 884737920, 1225045140, 1771563420, 3723878100, 3869896140, 4574299320, 7762395960, 12487172640, 14348911860, 14886940920, 21484957560, 24137574780 ]
[ "nonn" ]
A149321
[ 1, 1, 4, 12, 37, 141, 507, 1889, 7323, 28670, 112755, 451118, 1827782, 7401042, 30296921, 124896792, 515790235, 2142127204, 8938773789, 37392751211, 156893791500, 660687389365, 2788152813270, 11790933187361, 49993832732718, 212360261584231, 903547976751468, 3851667878094158 ]
[ "nonn", "walk" ]
A060240
[ 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 3, 3, 1, 1, 4, 4, 5, 5, 6, 1, 1, 5, 5, 5, 5, 9, 9, 10, 10, 16, 1, 1, 6, 6, 14, 14, 14, 14, 15, 15, 20, 21, 21, 35, 35, 1, 1, 7, 7, 14, 14, 20, 20, 21, 21, 28, 28, 35, 35, 42, 56, 56, 64, 64, 70, 70, 90, 1, 1, 8, 8, 27, 27, 28, 28, 42, 42, 42, 48, 48, 56, 56, 70, 84 ]
[ "nonn", "tabf", "nice", "look", "easy" ]
A143197
[ 1, 1, 1, 0, 1, 0, -1, 1, 0, -11, 0, 1, 0, -66, 0, 1, 1, 0, -302, 0, 57, 0, 1, 0, -1191, 0, 1191, 0, -1, 1, 0, -4293, 0, 15619, 0, -247, 0, 1, 0, -14608, 0, 156190, 0, -14608, 0, 1, 1, 0, -47840, 0, 1310354, 0, -455192, 0, 1013, 0, 1, 0, -152637, 0, 9738114, 0, -9738114, 0, 152637, 0, -1 ]
[ "tabf", "sign", "less" ]
A349708
[ 1, 1, 4, 1, 19, 53, 58, 97, 181, 4244, 2122, 31126, 16451, 297392, 2444006, 622249, 2909047, 216182072, 62801719, 769709491, 32522441312, 37859955467, 129549407177, 286721160343, 101419856449, 107709289064864, 72441253480727, 56099073382147, 5249126879235893 ]
[ "nonn" ]
A254638
[ 2, 6, 2, 20, 13, 72, 3, 92, 42, 308, 34, 900, 178, 1739, 4, 3349, 443, 4523, 387, 14364, 1827, 18672, 234, 39426, 15882, 52664, 8858, 128253, 28346, 123087, 5, 259207, 87797, 363512, 44545, 671389, 182549, 1336282, 18049, 1289210, 634402, 2679419, 156629 ]
[ "nonn", "easy" ]
A269290
[ 16, 216, 2124, 19188, 164556, 1363572, 11026764, 87559668, 685523916, 5306911092, 40706083404, 309846524148, 2343253251276, 17623065834612, 131903512372044, 983118947312628, 7300393156146636, 54032675767734130, 398738196097092700 ]
[ "nonn" ]
A061068
[ 3, 5, 11, 19, 79, 101, 113, 127, 163, 173, 223, 271, 383, 419, 431, 503, 571, 599, 619, 641, 659, 673, 683, 701, 733, 757, 827, 863, 971, 1013, 1033, 1087, 1193, 1249, 1423, 1433, 1453, 1483, 1579, 1621, 1667, 1723, 2003, 2113, 2179, 2287, 2381, 2459, 2467 ]
[ "nonn" ]
A264539
[ 0, 100, 696, 8180, 119810, 1293264, 15187422, 179414540, 2052910368, 23919502368, 277388965381, 3208620078246, 37242102968460, 431510537455275, 5000791870294019, 57981675317696900, 671993281653567400 ]
[ "nonn" ]
A066490
[ 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13 ]
[ "easy", "nonn" ]
A085555
[ 5, 13, 29, 229, 1093, 1229, 2029, 3253, 4229, 13693, 21613, 59053, 65029, 91813, 140629, 178933, 199813, 205213, 227533, 328333, 366029, 567013, 700573, 804613, 815413, 819029, 1071229, 1155629, 1311029, 1575029, 2241013, 3629029, 3822029 ]
[ "easy", "nonn" ]
A161549
[ 1, 17, 37, 61, 89, 121, 157, 197, 241, 289, 341, 397, 457, 521, 589, 661, 737, 817, 901, 989, 1081, 1177, 1277, 1381, 1489, 1601, 1717, 1837, 1961, 2089, 2221, 2357, 2497, 2641, 2789, 2941, 3097, 3257, 3421, 3589, 3761, 3937, 4117, 4301, 4489, 4681, 4877, 5077 ]
[ "easy", "nonn" ]
A239518
[ 0, 0, 1, 0, 2, 2, 3, 3, 3, 5, 6, 7, 8, 9, 11, 13, 15, 17, 20, 22, 25, 28, 32, 36, 42, 45, 52, 57, 65, 71, 81, 88, 100, 109, 122, 134, 149, 162, 180, 197, 218, 238, 262, 286, 315, 343, 376, 410, 449, 488, 534, 580, 633, 687, 749, 812, 883, 956, 1038, 1123 ]
[ "nonn", "easy" ]
A040758
[ 28, 18, 1, 2, 5, 1, 8, 1, 1, 27, 1, 1, 8, 1, 5, 2, 1, 18, 56, 18, 1, 2, 5, 1, 8, 1, 1, 27, 1, 1, 8, 1, 5, 2, 1, 18, 56, 18, 1, 2, 5, 1, 8, 1, 1, 27, 1, 1, 8, 1, 5, 2, 1, 18, 56, 18, 1, 2, 5, 1, 8, 1, 1, 27, 1, 1, 8, 1, 5, 2, 1, 18, 56, 18, 1, 2, 5, 1, 8, 1, 1, 27, 1, 1, 8 ]
[ "nonn", "cofr", "easy" ]
A334708
[ 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 5, 2, 0, 2, 5, 15, 10, 3, 3, 10, 15, 35, 30, 15, 10, 15, 30, 35, 70, 70, 45, 29, 29, 45, 70, 70, 126, 140, 105, 72, 64, 72, 105, 140, 126, 210, 252, 210, 157, 129, 129, 157, 210, 252, 210, 330, 420, 378, 302, 248, 234, 248, 302, 378, 420, 330 ]
[ "nonn", "tabl" ]
A050049
[ 1, 2, 3, 5, 6, 11, 14, 16, 17, 33, 47, 58, 64, 69, 72, 74, 75, 149, 221, 290, 354, 412, 459, 492, 509, 525, 539, 550, 556, 561, 564, 566, 567, 1133, 1697, 2258, 2814, 3364, 3903, 4428, 4937, 5429, 5888, 6300, 6654, 6944, 7165, 7314 ]
[ "nonn" ]
A309910
[ 1, 3, 10, 53, 266, 2093, 14512, 134705, 1317724, 14339429, 156052942, 2243410945, 28893239818, 421448538895, 6810085942104, 117497037128065, 1980909279322608, 38790292385240320, 730946685781179400, 15916872348230275000, 346942995035062140000, 7.767365425379383e+21 ]
[ "nonn" ]
A380357
[ 0, 1, -3, -2, -1, 3, 2, -7, -6, -5, -4, 5, 4, -12, -11, -10, -9, -8, 8, 7, 6, -19, -18, -17, -16, -15, -14, -13, 12, 11, 10, 9, -27, -26, -25, -24, -23, -22, -21, -20, 16, 15, 14, 13, -36, -35, -34, -33, -32, -31, -30, -29, -28, 21, 20, 19, 18, 17, -47, -46 ]
[ "sign" ]
A353490
[ 1, 1, 1, 2, 1, 3, 1, 0, 3, 1, 1, 2, 1, 3, 1, 0, 1, 1, 1, 2, 3, 3, 1, 0, 1, 1, 1, 2, 1, 3, 1, 0, 3, 1, 3, 2, 1, 3, 1, 0, 1, 1, 1, 2, 3, 3, 1, 0, 3, 1, 1, 2, 1, 3, 3, 0, 3, 1, 1, 2, 1, 3, 1, 0, 1, 1, 1, 2, 3, 3, 1, 0, 1, 1, 1, 2, 3, 3, 1, 0, 3, 1, 1, 2, 1, 3, 1, 0, 1, 1, 1, 2, 3, 3, 3, 0, 1, 1, 1, 2, 1, 3, 1, 0, 3 ]
[ "nonn" ]
A062486
[ 1, 1, 4, 15, 39, 84, 162, 283, 463, 718, 1064, 1521, 2111, 2855, 3777, 4902, 6257, 7869, 9769, 11985, 14549, 17494, 20855, 24664, 28960, 33778, 39157, 45135, 51753, 59052, 67073, 75859, 85455, 95904, 107252, 119546, 132833, 147160 ]
[ "nonn" ]
A014704
[ 1, 72, 2400, 52576, 870732, 11739984, 134825216, 1359259200, 12290396058, 101268020984, 769721861376, 5449376818656, 36216000728200, 227395735413552, 1356190070338560, 7717657198319936, 42069113073665704, 220400042813587800 ]
[ "nonn" ]
A366963
[ 17, 28, 39, 60, 71, 82, 93, 106, 117, 127, 137, 147, 157, 160, 167, 171, 172, 173, 174, 175, 176, 177, 206, 217, 228, 238, 248, 258, 260, 268, 271, 278, 282, 283, 284, 285, 286, 287, 288, 306, 317, 328, 339, 349, 359, 360, 369, 371, 379, 382, 389, 393, 394, 395, 396, 397, 398, 399 ]
[ "nonn", "base", "easy" ]
A338354
[ 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 ]
[ "nonn", "tabl", "more" ]
A158040
[ 2, 32, 258, 1664, 9710, 53664, 286762, 1497600, 7691238, 38995360, 195696226, 973894272, 4812812446, 23642953376, 115552680090, 562240972800, 2724987988054, 13161369525408, 63371643947474, 304287501281920, 1457424739149582, 6964697175476128 ]
[ "nonn" ]
A230192
[ 1, 1, 0, 5, 5, 5, 0, 4, 2, 7, 5, 2, 0, 9, 0, 8, 9, 3, 7, 0, 9, 6, 0, 9, 0, 1, 3, 9, 9, 5, 3, 9, 2, 5, 6, 5, 9, 7, 0, 0, 4, 9, 6, 9, 4, 6, 9, 1, 1, 6, 3, 6, 2, 8, 9, 3, 1, 4, 6, 0, 0, 3, 4, 3, 7, 2, 0, 6, 3, 4, 1, 7, 1, 4, 0, 3, 2, 5, 9, 8, 2, 1, 7, 3, 9, 8, 1, 1, 9, 1, 0, 4, 6, 9, 5, 7, 3, 9, 3, 9, 1, 4, 7, 1, 8 ]
[ "nonn", "cons" ]
A214254
[ 1, 1, 1, 1, 3, 2, 3, 2, 6, 4, 4, 3, 13, 6, 5, 6, 21, 10, 10, 9, 33, 18, 14, 15, 58, 30, 19, 27, 96, 51, 31, 44, 159, 89, 45, 77, 271, 152, 66, 133, 456, 263, 104, 228, 768, 458, 156, 395, 1310, 791, 236, 685, 2228, 1371, 363, 1187, 3802, 2380, 551, 2056, 6509 ]
[ "nonn" ]
A251988
[ 1182549, 43957515, 2351304453, 143941074215, 9220975438331, 598720936854481, 39038339681025030, 2548856771274494500, 166490920337454370000, 1.0876714257781843e+22, 7.106000870554153e+23 ]
[ "nonn" ]
A168379
[ 7, 7, 15, 15, 23, 23, 31, 31, 39, 39, 47, 47, 55, 55, 63, 63, 71, 71, 79, 79, 87, 87, 95, 95, 103, 103, 111, 111, 119, 119, 127, 127, 135, 135, 143, 143, 151, 151, 159, 159, 167, 167, 175, 175, 183, 183, 191, 191, 199, 199, 207, 207, 215, 215, 223, 223, 231, 231 ]
[ "nonn", "easy" ]
A266640
[ 1, 2, 1, 3, 2, 1, 1, 4, 3, 2, 1, 2, 1, 1, 1, 5, 4, 3, 2, 1, 3, 2, 1, 2, 1, 1, 2, 1, 1, 1, 1, 6, 5, 4, 3, 2, 1, 4, 3, 2, 1, 3, 2, 1, 2, 1, 1, 3, 2, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 7, 6, 5, 4, 3, 2, 1, 5, 4, 3, 2, 1, 4, 3, 2, 1, 3, 2, 1, 2, 1, 1, 4, 3, 2, 1, 3, 2, 1, 2, 1, 1, 3, 2, 1, 2, 1, 1, 2, 1, 1, 1 ]
[ "nonn", "tabf" ]
A227851
[ 1, 1, 8, 125, 3650, 171440, 11815940, 1122759980, 140645621840, 22456283261240, 4451225265169640, 1072410309912462500, 308628265617560700000, 1.045670481628522e+23, 4.119882978193619e+25, 1.8676924223093561e+28, 9.652952812685809e+30 ]
[ "nonn" ]
A132904
[ 2357, 35711, 571113, 7111317, 11131719, 13171923, 17192329, 19232931, 23293137, 29313741, 31374143, 37414347, 41434753, 43475359, 47535961, 53596167, 59616771, 61677173, 67717379, 71737983, 73798389, 79838997, 838997101 ]
[ "easy", "nonn", "base" ]
A377802
[ 1, 2, 1, 4, 3, 2, 6, 5, 4, 3, 9, 8, 7, 6, 5, 12, 11, 10, 9, 8, 7, 16, 15, 14, 13, 12, 11, 10, 20, 19, 18, 17, 16, 15, 14, 13, 25, 24, 23, 22, 21, 20, 19, 18, 17, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31 ]
[ "nonn", "easy", "tabl" ]
A016795
[ 128, 78125, 2097152, 19487171, 105413504, 410338673, 1280000000, 3404825447, 8031810176, 17249876309, 34359738368, 64339296875, 114415582592, 194754273881, 319277809664, 506623120463, 781250000000 ]
[ "nonn", "easy" ]
A103124
[ 399996663, 666609999, 669969663, 690696969, 699966663, 2789929969, 3066999963, 3366339999, 3366999933, 3399696663, 3399996633, 3666699663, 3669933993, 3933969693, 6066690999, 6069996663, 6099996633, 6393996933, 6399636963, 6666009999, 6669669633, 6966939633 ]
[ "base", "nonn" ]
A210254
[ 0, 7, 12, 15, 21, 23, 28, 31, 38, 39, 44, 47, 53, 55, 60, 63, 70, 76, 79, 85, 87, 92, 95, 102, 103, 108, 111, 117, 119, 124, 127, 134, 136, 140, 143, 149, 151, 156, 159, 166, 167, 172, 175, 181, 183, 188, 191, 198, 204, 207, 213, 215, 220, 223, 230, 231, 236 ]
[ "nonn" ]
A323663
[ 1, 1, 3, 1, 7, 6, 1, 21, 22, 10, 1, 71, 105, 50, 15, 1, 253, 566, 325, 95, 21, 1, 925, 3256, 2386, 780, 161, 28, 1, 3433, 19489, 18760, 7231, 1596, 252, 36, 1, 12871, 119713, 154085, 71890, 17857, 2926, 372, 45, 1, 48621, 748342, 1303753, 747860, 214396, 38332, 4950, 525, 55 ]
[ "nonn", "tabl" ]
A315717
[ 1, 6, 12, 18, 18, 24, 36, 42, 36, 48, 54, 48, 66, 78, 78, 72, 84, 90, 90, 108, 108, 114, 108, 114, 132, 132, 144, 144, 150, 144, 156, 174, 162, 180, 180, 180, 186, 198, 210, 198, 216, 216, 222, 228, 228, 246, 234, 246, 258, 264 ]
[ "nonn" ]
A309563
[ 1, 1, 1, 1, 2, 3, 2, 2, 4, 6, 2, 2, 6, 8, 4, 4, 6, 10, 4, 4, 10, 12, 4, 4, 12, 18, 6, 6, 8, 12, 8, 8, 16, 22, 6, 6, 18, 22, 8, 8, 12, 22, 10, 10, 22, 26, 8, 8, 20, 32, 12, 12, 18, 24, 12, 12, 28, 36, 8, 8, 30, 38, 16, 16, 20, 36, 16, 16, 24, 30, 12, 12, 36, 54 ]
[ "nonn" ]
A103028
[ 1, 2, 32, 43, 973, 1195, 4471, 5684, 7988, 46885 ]
[ "more", "nonn" ]
A331740
[ 0, 1, 2, 1, 4, 3, 8, 2, 2, 5, 16, 3, 32, 9, 6, 1, 64, 3, 128, 5, 10, 17, 256, 4, 4, 33, 4, 9, 512, 7, 1024, 2, 18, 65, 12, 3, 2048, 129, 34, 6, 4096, 11, 8192, 17, 6, 257, 16384, 3, 8, 5, 66, 33, 32768, 5, 20, 10, 130, 513, 65536, 7, 131072, 1025, 10, 2, 36, 19, 262144, 65, 258, 13, 524288, 4, 1048576, 2049, 6 ]
[ "nonn" ]
A134572
[ 5, 7, 11, 17, 37, 67, 83, 113, 199, 227, 241, 251, 283, 367, 373, 401, 433, 457, 479, 569, 571, 613, 643, 659, 701, 727, 743, 757, 769, 839, 919, 941, 977, 1019, 1031, 1049, 1103, 1109, 1171, 1187, 1201, 1249, 1279, 1367, 1399, 1423, 1433, 1471, 1487, 1493, 1583, 1601 ]
[ "nonn" ]
A349156
[ 1, 0, 0, 1, 1, 5, 3, 13, 11, 21, 28, 54, 31, 99, 111, 125, 165, 295, 259, 488, 425, 648, 933, 1253, 943, 1764, 2320, 2629, 2962, 4563, 3897, 6840, 6932, 9187, 11994, 12840, 12682, 21635, 25504, 28892, 28187, 44581, 42896, 63259, 66766, 74463, 104278, 124752 ]
[ "nonn" ]
A239612
[ 1, 8, 30, 112, 220, 240, 546, 1280, 1134, 1760, 2310, 3360, 4212, 4368, 6600, 13312, 9520, 9072, 12654, 24640, 16380, 18480, 22770, 38400, 42500, 33696, 39366, 61152, 47908, 52800, 56730, 131072, 69300, 76160, 120120, 127008, 99900, 101232, 126360, 281600 ]
[ "nonn", "mult" ]
A355137
[ 5, 6, 41, 119, 5118 ]
[ "nonn", "more" ]
A177118
[ 1, 5, 6, 31, 114, 564, 2628, 13211, 66522, 344636, 1804532, 9590028, 51461840, 278821158, 1522272848, 8369233919, 46288773842, 257390692984, 1438037311156, 8068655095524, 45446502511520, 256869804259090, 1456473521972768 ]
[ "easy", "nonn" ]
A195868
[ 3, 5, 7, 7, 9, 11, 11, 13, 13, 15, 16, 17, 17, 19, 19, 21, 23, 23, 24, 25, 25, 27, 29, 29, 31, 31, 32, 32, 33, 35, 37, 40, 40, 40, 41, 43, 47, 48, 49, 53, 55, 55, 56 ]
[ "nonn" ]
A061259
[ 1, 5, 10, 25, 36, 80, 106, 201, 280, 460, 617, 1024, 1314, 2000, 2685, 3897, 5050, 7280, 9311, 13020, 16747, 22665, 28866, 39000, 48986, 64654, 81550, 106124, 132386, 171295, 212103, 271065, 335345, 423594, 521046, 655396, 800570, 997885 ]
[ "easy", "nonn" ]
A176553
[ 1, 3, 7, 9, 13, 21, 31, 37, 67, 73, 79, 97, 103, 109, 121, 151, 163, 181, 183, 193, 219, 223, 229, 237, 277, 283, 307, 363, 367, 373, 381, 409, 433, 439, 471, 487, 489, 499, 511, 523, 571, 601, 603, 607, 613, 619, 657, 669, 709, 733, 787, 811, 817, 819, 823, 841, 867 ]
[ "nonn", "base" ]
A013096
[ 1, -4, 8, -214, 8632, -381754, 56522540, -6087452310, 1458087413200, -333863833250482, 114840891055289940, -44663949601714086000, 2.187015270569437e+22, -1.2543311598815172e+25 ]
[ "sign" ]
A039098
[ 0, 1, 2, 4, 6, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 20, 22, 24, 25, 26, 32, 36, 37, 38, 40, 42, 43, 44, 48, 54, 55, 56, 58, 60, 61, 62, 63, 64, 65, 67, 69, 70, 71, 72, 73, 74, 76, 78, 79, 80, 81, 82, 83, 85, 87, 88, 89, 90, 91, 92, 94, 96, 97, 98, 99, 100, 101, 103 ]
[ "nonn", "base", "easy" ]
A321350
[ 2, 25, 5, 784, 28, 64, 619369, 8, 787, 961, 4489, 383621674384, 31, 67, 121, 619372, 624100, 929296, 20178064, 1.4716558905948545e+23, 11, 790, 964, 1156, 4492, 4900, 15376, 383621674387, 383625390625, 389504554609, 863596631401, 407154387856489, 2.1657710603225343e+46 ]
[ "nonn", "tabf" ]
A180616
[ 987654321007, 1098765432101, 3598765432109, 9798765432101, 9876543210463, 9876543210733, 9876543210847, 9987654321077, 9987654321097, 10987654321001, 10987654321097, 11987654321081, 12987654321011, 14987654321053, 18898765432109, 19876543210187, 19876543210607, 19876543210691 ]
[ "nonn", "base" ]
A320711
[ 367, 446, 732, 1357, 1440, 1475, 1746, 1864, 1912, 1933, 2293, 2714, 2888, 2912, 3159, 3204, 3362, 3523, 3715, 3786, 3801, 3840, 3870, 3920, 3931, 4107, 4164, 4235, 4240, 4502, 4643, 4809, 4957, 4990, 5110, 5371, 5440, 5451, 5581, 5712, 5736, 5743, 5870, 5882, 5906, 5923, 5933, 6018, 6277 ]
[ "nonn" ]
A182877
[ 9, 12, 26, 46, 66, 86, 90, 100, 114, 120, 126, 174, 190, 212, 280, 386, 396, 410, 480, 598, 726, 916, 964, 1000, 1074, 1090, 1218, 1280, 1378, 1380, 1614, 1728, 1774, 1924, 1998, 2378, 2452, 2514, 2608, 2852, 2866, 2870, 3080 ]
[ "nonn" ]
A047073
[ 1, 2, 4, 4, 8, 12, 24, 40, 80, 140, 280, 504, 1008, 1848, 3696, 6864, 13728, 25740, 51480, 97240, 194480, 369512, 739024, 1410864, 2821728, 5408312, 10816624, 20801200, 41602400, 80233200, 160466400, 310235040, 620470080, 1202160780 ]
[ "nonn" ]
A342821
[ 2, 2, 3, 2, 3, 2, 5, 3, 5, 2, 3, 29, 7, 0, 3, 2, 0, 2, 11, 3, 3, 5, 0, 19, 5, 3, 29, 2, 0, 2, 13, 0, 3, 29, 3, 2, 41, 0, 5, 11, 3, 11, 5, 0, 5, 2, 0, 3, 5, 3, 19, 19, 3, 11, 7, 3, 11, 2, 0, 2, 7, 0, 3, 5, 0, 2, 5, 3, 11, 5, 0, 19, 13, 0, 31, 7, 0, 2, 19, 0, 7, 11, 3, 5, 19, 0, 5, 2, 0, 3, 7, 0, 5 ]
[ "nonn" ]
A030805
[ 1, 2, 7, 29, 147, 886, 6207, 49659, 446931, 4469315, 49162474, 589949695, 7669346038, 107370844541, 1610562668120, 25769002689920, 438073045728649, 7885314823115697, 149820981639198240, 2996419632783965000 ]
[ "nonn", "easy" ]
A078663
[ 1, 3, 6, 10, 16, 24, 35, 48, 64, 82, 108, 136, 172, 210, 257, 305, 358, 415, 477, 546, 618, 695, 777, 864, 961, 1060, 1162, 1268, 1382, 1508, 1639, 1777, 1922, 2070, 2225, 2400, 2577, 2757, 2939, 3128, 3325, 3531, 3740, 3959, 4180, 4416, 4654, 4895, 5138, 5391 ]
[ "easy", "nonn" ]
A377372
[ 2, 19, 41, 479, 1031, 1181, 577, 2999, 10711, 29033, 24919, 49069, 60919, 169019, 209563, 254993, 337537 ]
[ "nonn", "more" ]
A312767
[ 1, 4, 8, 16, 18, 22, 26, 34, 38, 44, 42, 50, 56, 62, 68, 64, 74, 78, 86, 90, 88, 96, 104, 106, 116, 106, 124, 124, 134, 134, 132, 142, 154, 152, 164, 146, 172, 170, 184, 180, 176, 186, 202, 198, 214, 188, 220, 214, 232, 226 ]
[ "nonn" ]
A059442
[ 2, 3, 3, 4, 6, 4, 5, 9, 9, 5, 6, 14, 18, 14, 6, 7, 18, 25, 25, 18, 7, 8, 23 ]
[ "nonn", "tabl", "nice", "hard" ]
A077294
[ 12, 17, 189, 2, 182, 18535523586, 2454560, 265279053157841, 32559, 32333435363738390, 3765849495877, 4, 3.808088656573505e+30, 469, 45124647144849170, 47986174880114270, 5, 48266 ]
[ "nonn", "base" ]
A149271
[ 1, 1, 4, 11, 42, 131, 561, 1897, 8264, 30205, 133945, 505237, 2280622, 8858735, 40332662, 160335565, 735744074, 2972238961, 13729284799, 56239449957, 261023413798, 1081746128971, 5041413026620, 21089879774557, 98638353015282, 416028438965419, 1951434704818877, 8289421176613483 ]
[ "nonn", "walk" ]
A334031
[ 1, 2, 4, 6, 8, 18, 12, 30, 16, 54, 36, 150, 24, 90, 60, 210, 32, 162, 108, 750, 72, 450, 300, 1470, 48, 270, 180, 1050, 120, 630, 420, 2310, 64, 486, 324, 3750, 216, 2250, 1500, 10290, 144, 1350, 900, 7350, 600, 4410, 2940, 25410, 96, 810, 540, 5250, 360, 3150 ]
[ "nonn" ]
A309817
[ 1, 12, 45, 50, 80, 144, 162, 294, 448, 847, 1690, 1728, 1875, 1944, 2025, 2500, 2816, 3179, 3872, 4000, 4312, 4693, 6615, 7290, 7406, 8228, 9600, 11907, 12544, 13312, 15979, 18900, 20280, 22103, 23328, 24010, 28314, 32256, 33524, 37856, 37975, 39600, 45177 ]
[ "nonn" ]
A216977
[ 2, 3, 59051, 161053, 759377, 14348909, 90224201, 345025253, 601692059, 12762815627, 73439775751, 183765996901, 296709280759, 503756397101, 576650390627, 657748550153, 1572763671877, 1751989905403, 1880287678127, 2389769101501, 3101364196877, 3201078401359 ]
[ "nonn", "easy", "changed" ]
A080449
[ 5, 15, 105, 1155, 10395, 114345, 1029105, 11320155, 101881395, 1120695345, 10086258105, 110948839155, 1220437230705, 10983935076345, 120823285839795, 1087409572558155, 11961505298139704, 107653547683257340 ]
[ "base", "nonn" ]
A261266
[ 1, 2, 8, 44, 264, 1632, 10256, 65200, 418144, 2700224, 17534208, 114380928, 748988928, 4920379648, 32413343488, 214038123264, 1416349369856, 9389756730368, 62352450867200, 414660440811520, 2761261291024384 ]
[ "nonn" ]
A209407
[ 3, 7, 13, 23, 31, 47, 113, 139, 199, 211, 293, 317, 523, 1327, 1669, 1951, 2179, 2477, 2971, 3271, 4297, 4831, 5591, 5749, 5953, 6491, 6917, 7253, 8467, 9551, 9973, 10799, 11743, 15683, 19609, 31397, 34061, 35617, 35677, 43331, 44293, 45893, 48679, 58831 ]
[ "nonn" ]
A358677
[ 1, 16, 18, 18, 21, 21, 17, 17, 19, 20, 22, 265549, 265604, 265605, 265608, 265681, 265683, 265829, 265831, 265831, 265835, 265836, 265850, 265850, 265853, 265853, 265862, 265873, 265550, 265603, 265606, 265607, 265682, 265682, 265830, 265830, 265832, 265834, 265837, 265849, 265851, 265852, 265854, 265861 ]
[ "nonn", "tabf" ]
A312809
[ 1, 4, 8, 16, 22, 22, 28, 30, 36, 44, 52, 52, 58, 56, 64, 72, 80, 78, 88, 86, 94, 100, 108, 104, 116, 112, 124, 132, 138, 130, 144, 138, 152, 160, 168, 160, 174, 164, 180, 188, 196, 186, 204, 194, 210, 216, 224, 212, 232, 220 ]
[ "nonn" ]
A349501
[ 1, 2, 59, 280, 3539, 57575, 65, 15410548, 9286977451, 24510585369 ]
[ "nonn", "more" ]
A322401
[ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 5, 1, 6, 2, 7, 2, 13, 3, 14, 6, 18, 8, 28, 11, 33, 19, 38, 22, 54, 28, 71, 44, 83, 53, 110, 68, 134, 98, 154, 120, 209, 145, 253, 191, 302, 244, 385, 299, 459, 390, 553, 483, 693, 578 ]
[ "nonn" ]
A363497
[ 0, 1, 2, 3, 11, 19, 27, 35, 43, 70, 97, 124, 151, 178, 205, 232, 296, 360, 424, 488, 552, 616, 680, 744, 808, 933, 1058, 1183, 1308, 1433, 1558, 1683, 1808, 1933, 2058, 2183, 2399, 2615, 2831, 3047, 3263, 3479, 3695, 3911, 4127, 4343, 4559, 4775, 4991, 5334 ]
[ "nonn", "easy" ]
A188615
[ 3, 3, 9, 8, 3, 6, 9, 0, 9, 4, 5, 4, 1, 2, 1, 9, 3, 7, 0, 9, 6, 3, 9, 2, 5, 1, 3, 3, 9, 1, 7, 6, 4, 0, 6, 6, 3, 8, 8, 2, 4, 4, 6, 9, 0, 3, 3, 2, 4, 5, 8, 0, 7, 1, 4, 3, 1, 9, 2, 3, 9, 6, 2, 4, 8, 9, 9, 1, 5, 8, 8, 8, 6, 6, 4, 8, 4, 8, 4, 1, 1, 4, 6, 0, 7, 6, 5, 7, 9, 2, 5, 0, 0, 1, 9, 7, 6, 1, 2, 8, 5, 2, 1, 2, 9, 7, 6, 3, 8, 0, 7, 4, 0, 2, 2, 9, 4, 4, 7, 4, 1, 5, 2, 3, 9, 3, 5, 7, 5, 6 ]
[ "nonn", "cons" ]
A025798
[ 1, 0, 1, 1, 1, 1, 2, 1, 2, 3, 2, 3, 4, 3, 4, 5, 4, 5, 7, 5, 7, 8, 7, 8, 10, 8, 10, 12, 10, 12, 14, 12, 14, 16, 14, 16, 19, 16, 19, 21, 19, 21, 24, 21, 24, 27, 24, 27, 30, 27, 30, 33, 30, 33, 37, 33, 37, 40, 37, 40, 44, 40, 44, 48, 44, 48, 52, 48, 52, 56, 52, 56 ]
[ "nonn", "easy" ]
A320063
[ 0, 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8, 8, 9, 10, 10, 10, 10, 11, 12, 12, 13, 13, 13, 13, 14, 15, 15, 15, 16, 17, 17, 17, 17, 18, 19, 19, 19, 20, 20, 21, 21, 21, 21, 21, 22, 23, 23, 23, 24, 24, 25, 26, 27, 27, 27, 27, 27, 28, 28, 29, 29, 29 ]
[ "nonn" ]
A068267
[ 1, 3856, 3373402576, 669566077899139500, 3.0151771791510038e+28, 3.080536476512828e+41, 7.140588358792847e+56, 3.755223267916594e+74 ]
[ "nonn" ]
A162569
[ 2, 5, 97, 109, 149, 317, 337, 349, 431, 709, 769, 1009, 1061, 1117, 1129, 1217, 1297, 2003, 2029, 2069, 2129, 2153, 2237, 2377, 2411, 2437, 2777, 2909, 2927, 3089, 3109, 3229, 3359, 3533, 3557, 3631, 4129, 4337, 4603, 4789, 4903, 4937, 5021, 5167, 5563, 5737 ]
[ "nonn" ]
A384590
[ 1, 3, 6, 9, 12, 15, 19, 22, 26, 29, 33, 37, 40, 44, 48, 51, 55, 59, 62, 66, 70, 73, 77, 81, 85, 89, 92, 96, 100, 104, 107, 111, 115, 119, 123, 126, 130, 134, 138, 142, 146, 149, 153, 157, 161, 165, 169, 172, 176, 180, 184, 188, 192, 196, 199, 203, 207, 211 ]
[ "nonn" ]
A100102
[ 2, 3, 13, 59, 249, 1015, 4085, 16371, 65521, 262127, 1048557, 4194283, 16777193, 67108839, 268435429, 1073741795, 4294967265, 17179869151, 68719476701, 274877906907, 1099511627737, 4398046511063, 17592186044373, 70368744177619, 281474976710609, 1125899906842575 ]
[ "nonn", "easy" ]
A356438
[ 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 17, 19, 20, 21, 22, 23, 25, 26, 28, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 44, 46, 47, 49, 51, 52, 53, 55, 56, 57, 58, 59, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 73, 74, 76, 77, 78, 79, 82, 83, 85 ]
[ "nonn", "easy" ]
A296192
[ 1, 1, 6, 5, 28, 630, 396, 9009, 24024, 87516, 1511640, 5819814, 4576264, 106234700, 1147334760, 1890494775, 11031593040, 343817983080, 292314884400, 10274868186660 ]
[ "nonn", "frac" ]
A204759
[ 38789, 1457775, 8155815, 306477369, 1905174177, 68057441183, 456020452383, 15334587311409, 109796596042647, 3474515179617105, 26427298563815570, 789647131549632600, 6348422726242741000, 179867824046102050000 ]
[ "nonn" ]
A060832
[ 0, 1, 3, 4, 6, 7, 10, 11, 13, 14, 16, 17, 20, 21, 23, 24, 26, 27, 30, 31, 33, 34, 36, 37, 41, 42, 44, 45, 47, 48, 51, 52, 54, 55, 57, 58, 61, 62, 64, 65, 67, 68, 71, 72, 74, 75, 77, 78, 82, 83, 85, 86, 88, 89, 92, 93, 95, 96, 98, 99, 102, 103, 105, 106, 108, 109, 112, 113 ]
[ "nonn" ]
A065349
[ 19, 41, 42, 43, 49, 50, 53, 54, 55, 58, 67, 71, 74, 75, 95, 97, 98, 99, 102, 103, 123, 135, 138, 139, 145, 149, 153, 154, 155, 159, 163, 165, 166, 167, 168, 169, 170, 173, 174, 175, 178, 179, 180, 183, 184, 185, 191, 193, 194, 195, 197, 198, 199, 200, 201, 202 ]
[ "nonn" ]
A281375
[ 4, 4, 5, 8, 12, 21, 36, 64, 113, 204, 372, 682, 1260, 2340, 4369, 8192, 15420, 29127, 55188, 104857, 199728, 381300, 729444, 1398101, 2684354, 5162220, 9942053, 19173961, 37025580, 71582788, 138547332, 268435456, 520602096, 1010580540, 1963413621, 3817748707, 7429132620, 14467258260, 28192605840, 54975581388 ]
[ "nonn", "easy" ]
A227206
[ 1, 5, 29, 169, 869, 985, 5741, 26041, 29405, 33461, 151201, 195025, 756029, 780361, 998789, 1136689, 5116301, 6625109, 23384789, 26308105, 29816641, 33929309, 38613965, 135777769, 225058681, 657744361, 678888869, 700763309, 788361985, 864683429, 890206969, 1012771061, 1152597605 ]
[ "nonn" ]
A259294
[ 434, 3938, 31774, 273686, 2293928, 19528726, 165147350, 1402044186, 11882217182, 100805628896, 854788219326, 7250421894706, 61489557032118, 521532393880894, 4423217189081992, 37515428883279070, 318180075628925400 ]
[ "nonn" ]
A381842
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 4, 10, 41, 103, 309, 691, 1458, 2448, 3703, 4587, 5050, 4587, 3703, 2448, 1458, 691, 309, 103, 41, 10, 4, 1, 1, 1, 1, 6, 37, 715, 13710, 256751, 4140666, 58402198, 726296995, 8060937770, 80604620206, 732149722382 ]
[ "nonn", "tabf" ]
A087650
[ 1, 0, 2, 3, 12, 40, 163, 714, 3426, 17721, 98254, 580316, 3633281, 24011156, 166888166, 1216070379, 9264071768, 73600798036, 608476008123, 5224266196934, 46499892038438, 428369924118313, 4078345814329010, 40073660040755336 ]
[ "nonn" ]