id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A134887
[ 1, 5, 15, 32, 56, 89, 131, 183, 246, 321, 407, 507, 619, 746, 887, 1042, 1214, 1401, 1604, 1824, 2062, 2317, 2590, 2881, 3192, 3522, 3871, 4241, 4631, 5041, 5473, 5927, 6402, 6899, 7420, 7962 ]
[ "nonn" ]
A241151
[ 1, 2, 3, 3, 4, 5, 5, 5, 6, 7, 7, 7, 7, 8, 9, 9, 9, 9, 9, 10, 11, 11, 11, 11, 11, 11, 12, 13, 13, 13, 13, 13, 13, 13, 14, 15, 15, 15, 15, 15, 15, 15, 15, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 18, 19, 19, 19, 19, 19 ]
[ "nonn", "more" ]
A230155
[ 9, 1, 1, 5, 9, 2, 3, 5, 3, 4, 8, 2, 0, 5, 4, 9, 1, 8, 6, 2, 8, 6, 7, 3, 6, 7, 2, 4, 9, 4, 0, 5, 0, 1, 7, 7, 3, 7, 5, 8, 8, 4, 6, 9, 4, 3, 6, 1, 4, 1, 3, 9, 4, 6, 9, 5, 5, 7, 6, 2, 6, 5, 3, 9, 2, 3, 4, 4, 3, 4, 8, 8, 2, 5, 2, 4, 0, 4, 1, 2, 8, 9, 8, 9, 5, 8, 0, 1, 2, 7, 5, 4, 7, 3, 9, 0, 7, 0, 9, 4, 3, 0, 0, 0, 1, 9, 6, 8, 6, 8, 7, 3, 6, 8, 9, 5, 6, 5, 8, 7, 3, 2, 9, 6, 8, 1, 6, 2, 9, 4 ]
[ "nonn", "cons" ]
A175682
[ 0, 1, 2, 0, 4, 0, 2, 0, 0, 0, 4, 0, 3, 0, 0, 0, 5, 0, 3, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 1, 0, 0, 0, 9, 0, 4, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 0, 4, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 6, 0, 4, 0, 0 ]
[ "nonn" ]
A355926
[ 3, 9, 1, 5, 5, 1, 3, 5, 1, 1, 3, 125, 7, 1, 1, 5, 5, 343, 1, 1, 1, 3, 175, 7, 11, 1, 1, 1, 9, 1, 49, 1, 1, 1, 1, 1, 25, 125, 7, 121, 1, 1, 1, 1, 1, 3, 245, 2401, 1, 1, 1, 1, 1, 1, 1, 3, 1, 77, 1, 1, 1, 1, 1, 1, 1, 1, 5, 5, 49, 11, 28561, 1, 1, 1, 1, 1, 1, 1, 3, 175, 7, 121, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 5, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
[ "nonn", "tabl" ]
A193346
[ 1, 144, 4960608, 55493434415544000 ]
[ "nonn", "hard", "more", "bref" ]
A126066
[ 1, 1, 1, 1, 1, 1, 1, 3, 3, 3, 1, 1, 1, 1, 4, 9, 18, 24, 30, 24, 18, 9, 4, 1, 1, 1, 1, 4, 11, 38, 89, 210, 382, 616, 787, 880, 787, 616, 382, 210, 89, 38, 11, 4, 1, 1, 1, 1, 4, 12, 48, 165, 567, 1703, 4623, 10836, 22273, 39866, 62650, 86209, 104456, 111256, 104456, 86209, 62650, 39866, 22273, 10836, 4623, 1703, 567, 165, 48, 12, 4, 1, 1 ]
[ "nonn", "tabf" ]
A107483
[ 2, 20, 100, 122, 2222, 20000, 100000, 122222, 2222222, 20000000, 100000000, 122222222, 2222222222, 20000000000, 100000000000, 122222222222, 2222222222222, 20000000000000, 100000000000000, 122222222222222 ]
[ "nonn", "base" ]
A156385
[ 1, 26, 112, 112, 57, 291, 552, 240, 138, 868, 972, 704, 352, 876, 1912, 840, 347, 1308, 3704, 1844, 1239, 1872, 2772, 1320, 1104, 2832, 4884, 6416, 1840, 3758, 6232, 3240, 818, 5544, 11384, 8916, 7011, 4146, 8484, 4560, 2914, 6030, 12672, 11344, 5344 ]
[ "nonn" ]
A356386
[ 1, 1, 2, 4, 4, 8, 0, 20, 8, 10, 6, 8, 12, 0, 48, 0, 30, 4, 30, 26, 18, 8, 4, 46, 0, 78, 0, 42, 38, 0, 36, 28, 52, 0, 60, 36, 0, 76, 24, 26, 8, 122, 0, 84, 24, 34, 42, 0, 64, 34, 86, 0, 108, 64, 40, 64, 46, 0, 98, 68, 0, 176, 20, 40, 134, 0, 42, 66, 124, 0, 114 ]
[ "nonn", "base" ]
A194361
[ 1, 7, 4, 7, 1, 7, 1, 1, 7, 1, 6, 9, 3, 0, 4, 1, 4, 6, 3, 3, 2, 0, 0, 0, 0, 9, 7, 3, 0, 7, 5, 4, 2, 5, 6, 9, 2, 4, 2, 0, 3, 9, 1, 1, 6, 1, 7, 3, 7, 7, 9, 6, 6, 3, 3, 2, 3, 6, 0, 2, 5, 5, 1, 1, 7, 8, 1, 4, 5, 6, 5, 7, 6, 2, 2, 0, 5, 0, 4, 1, 0, 3, 2, 2, 7, 0, 1, 1, 4, 5, 1, 3, 0, 9, 6, 6, 9, 1, 9, 6, 5, 1, 0, 3, 2 ]
[ "nonn", "cons" ]
A172919
[ 1, 1, 8, 666, 381424, 976395820, 8575979362560, 215717608046511870, 1.3590707419428424e+22, 1.9332161608875752e+27, 5.715067440827851e+32 ]
[ "nonn" ]
A163038
[ 1, 17, 144, 920, 5191, 27651, 143342, 733512, 3730303, 18914231, 95766768, 484557538, 2450951157, 12395284963, 62682479764, 316971668262, 1602829696167, 8104958759329, 40983832221302, 207239970377650, 1047934399198859 ]
[ "nonn" ]
A342089
[ 5, 12, 16, 23, 30, 34, 41, 45, 52, 59, 63, 70, 77, 81, 88, 92, 99, 106, 110, 117, 121, 128, 135, 139, 146, 153, 157, 164, 168, 175, 182, 186, 193, 200, 204, 211, 215, 222, 229, 233, 240, 244, 251, 258, 262, 269, 276, 280, 287, 291, 298, 305, 309, 316, 320, 327 ]
[ "nonn" ]
A135266
[ 0, 1, 5, 19, 60, 182, 546, 1639, 4919, 14761, 44286, 132860, 398580, 1195741, 3587225, 10761679, 32285040, 96855122, 290565366, 871696099, 2615088299, 7845264901, 23535794706, 70607384120, 211822152360, 635466457081 ]
[ "nonn", "easy" ]
A096855
[ 2, 2, 2, 12, 6, 16, 24, 80, 84, 320, 360, 864, 1320, 5456, 5184, 15744, 19800, 52800, 69120, 349520, 370080, 1036800, 1425600, 3640896, 4741632, 13989888, 27091584, 76743040, 94656000, 166387200, 412473600, 1407389952, 1420488192, 3459760128, 6502788864, 14778408960 ]
[ "nonn" ]
A374793
[ 2, 1260, 27935107200, 2.9564884570506808e+25 ]
[ "nonn", "more" ]
A166893
[ 1, 6, 63, 986, 20685, 545736, 17365336, 647216568, 27653205177, 1332422277828, 71470510481961, 4223498675806638, 272615162534575300, 19082609490868540000, 1.4397387111228275e+21, 1.1646823455906162e+23 ]
[ "nonn" ]
A224285
[ 4096, 1600000, 37128051, 356222482, 2425304290, 14587480744, 86539248276, 519675953580, 3101250505830, 17906548084860, 98091759991859, 504379639489778, 2424565118584031, 10897029351109180, 45902682124075150 ]
[ "nonn" ]
A101841
[ 0, 4, 70, 111, 114, 172, 262, 309, 357, 10498, 22924, 37956, 254194 ]
[ "nonn", "hard", "more" ]
A332850
[ 699796, 4854634, 6752626, 84036010, 931910661, 21584860960, 52554850525, 467170024564, 637843128736, 638730439636, 638734039636, 638943127636, 727830438745, 727834038745, 746710459825, 746754019825, 748943127625, 9894192267061, 401309596403104, 844181015028970 ]
[ "nonn", "base" ]
A208858
[ 2, 11, 127, 1691, 23047, 315203, 4313071, 59022155, 807696535, 11053048211, 151257183487, 2069902880411, 28325913895207, 387630456564323, 5304590398318351, 72591507756551920, 993389989178417300 ]
[ "nonn" ]
A291249
[ 1, 2, 5, 10, 23, 47, 102, 214, 452, 955, 2003, 4223, 8854, 18610, 39032, 81896, 171752, 360103, 754985, 1582497, 3316978, 6951684, 14568692, 30530311, 63977107, 134063288, 280920507, 588643384, 1233430247, 2584481968, 5415381139, 11347029572, 23775710791 ]
[ "nonn", "easy" ]
A385351
[ 1, 4, 8, 9, 16, 81, 121, 128, 144, 441, 484, 841, 1331, 1444, 8281, 11881, 14884, 28224, 48841, 114244, 128881, 142884, 221841, 228484, 848241, 1121481, 1281424, 1418481, 2184484, 2214144, 8282884, 9393931, 11142244, 11282881, 18241441, 18818244, 18844281, 21242881 ]
[ "nonn", "base" ]
A323051
[ 479, 958, 1151, 1319, 1437, 1559, 1679, 1916, 2302, 2351, 2395, 2638, 2874, 2999, 3013, 3071, 3118, 3353, 3358, 3453, 3671, 3737, 3769, 3832, 3911, 3957, 4199, 4309, 4311, 4604, 4677, 4702, 4703, 4751, 4790, 4919, 5037, 5057, 5269, 5276, 5389, 5443, 5519, 5597, 5683 ]
[ "nonn" ]
A256208
[ 1, 1, 2, 6, 24, 119, 694, 4582, 33325, 261863, 2192390, 19358590, 178904675, 1720317763, 17132629082, 176055309619, 1861037944163, 20185165186517, 224150069984572, 2543698932578158, 29451619807433108, 347417296695040500, 4170088041714300000, 50874753262007210000 ]
[ "nonn" ]
A120766
[ 1, 1, 2, 6, 12, 36, 86, 270, 746, 2554, 8032, 29716, 103482, 409242, 1550850, 6508702, 26509428, 117368404, 508962350, 2365560998, 10842378698, 52685516658, 253754085960, 1284660919140, 6471281910962, 34031293950258 ]
[ "nonn" ]
A294319
[ 2, 240, 9676800, 386266890240000, 3.3674087438261157e+25, 1.1977449554394932e+40, 2.913996107372183e+58 ]
[ "nonn" ]
A253018
[ 25, 37, 51, 63, 105, 153, 189, 315, 459, 567, 945, 1377, 1701, 2835, 4131, 5103, 8505, 12393, 15309, 25515, 37179, 45927, 76545, 111537, 137781, 229635, 334611, 413343, 688905, 1003833, 1240029, 2066715, 3011499, 3720087, 6200145, 9034497, 11160261 ]
[ "nonn" ]
A152354
[ 1, 2, 6, 24, 120, 720, 4704, 34392, 277152, 2480256, 25053328, 266428148, 3104831376, 38907419716, 511622343330, 7327452159608 ]
[ "nonn" ]
A204858
[ 1, 1, 1, 3, 3, 7, 13, 21, 33, 67, 115, 183, 333, 541, 937, 1635, 2643, 4327, 7573, 12069, 20025, 33427, 54259, 87375, 144669, 231541, 374809, 607443, 970539, 1545367, 2502205, 3947541, 6270057, 9997867, 15776083, 24832503, 39351309, 61552501, 96632689 ]
[ "nonn" ]
A365032
[ 1, 1, 9, 106, 1949, 47376, 1443757, 53003392, 2278044729, 112267072000, 6242682602321, 386708915902464, 26411820455554260, 1971959747016534000, 159794005364013400000, 1.3967707431203856e+22, 1.310083060716906e+24, 1.3124568612258607e+26 ]
[ "nonn" ]
A107905
[ 4, 7, 9, 1, 2, 8, 7, 8, 4, 7, 4, 7, 7, 9, 2, 0, 0, 0, 3, 2, 9, 4, 0, 2, 3, 5, 9, 6, 8, 6, 4, 0, 0, 4, 2, 4, 4, 4, 9, 2, 2, 2, 8, 2, 8, 8, 3, 8, 3, 9, 8, 5, 9, 5, 1, 3, 0, 3, 6, 2, 1, 0, 6, 1, 9, 5, 3, 4, 3, 4, 2, 1, 2, 7, 7, 3, 8, 8, 5, 4, 4, 3, 3, 0, 2, 1, 8, 0, 7, 7, 9, 7, 4, 6, 7, 2, 2, 5, 1, 6 ]
[ "cons", "easy", "nonn" ]
A084315
[ 1, 3, 4, 13, 36, 19, 120, 33, 46, 11, 78, 37, 560, 239, 496, 1905, 52, 397, 3250, 221, 778, 573, 2738, 25, 26, 287, 352, 477, 552, 271, 8588, 449, 5710, 205, 456, 145, 1000, 4067, 2536, 761, 14638, 295, 4344, 2685, 406, 1151, 612, 3121, 6616, 551, 868, 469, 20088 ]
[ "nonn" ]
A105424
[ 0, 1, 10, 100, 101, 1000, 1010, 10000, 10001, 10010, 10100, 10101, 100000, 100010, 100100, 100101, 101000, 101010, 1000000, 1000001, 1000010, 1000100, 1000101, 1001000, 1001010, 1010000, 1010001, 1010010, 1010100, 1010101, 10000000 ]
[ "nonn", "base" ]
A321353
[ 4, 5, 6, 7, 8, 9, 12, 13, 16, 17, 18, 21, 23, 29, 31, 33, 35, 36, 41, 58, 63, 66, 69, 82, 96, 99, 148, 157, 175, 196, 241, 267, 349, 394, 404, 414, 435, 456, 485, 498, 537, 548, 584, 715, 727, 765, 929, 1007, 1076, 1399, 1619, 1652, 1715, 2758, 3039, 3131, 3773, 3822, 5001 ]
[ "nonn" ]
A201209
[ 4, 50, 1684, 146946, 33635880, 21062625664, 37432954261477 ]
[ "nonn" ]
A181757
[ 1, 3, 5, 6, 7, 2, 5, 6, 8, 2, 3, 4, 7, 2, 3, 5, 7, 8, 1, 4, 7, 8, 2, 4, 5, 6, 1, 4, 5, 7, 1, 2, 3, 6, 1, 2, 4, 6, 7, 8, 3, 6, 7, 1, 3, 4, 5, 8, 2, 4, 6, 8, 1, 2, 5, 8 ]
[ "dead" ]
A347354
[ 1, 2, 1, 3, 4, 1, 2, 5, 1, 6, 1, 2, 7, 1, 3, 2, 1, 8, 1, 4, 2, 1, 9, 10, 1, 2, 11, 1, 3, 1, 2, 12, 1, 4, 13, 1, 2, 1, 14, 15, 1, 2, 3, 1, 6, 2, 1, 4, 1, 16, 2, 1, 17, 18, 1, 2, 1, 3, 5, 1, 2, 19, 1, 4, 2, 1, 20, 1, 3, 21, 1, 2, 22, 1, 9, 1, 2, 4, 1, 8, 2, 1, 3 ]
[ "nonn" ]
A265504
[ 1, 1144, 4027, 7485, 9039, 9940, 11286, 11781, 13095, 13236, 13869, 14124, 14764, 16630, 18075, 18795, 19284, 20797, 21436, 22696, 23904, 25297, 25419, 27391, 27564, 28146, 28392, 29865, 30624, 31087, 31137, 31369, 33286, 33724, 33741, 34609, 34837, 35034, 37047, 37075, 39564, 39910, 41181 ]
[ "nonn" ]
A054469
[ 1, 7, 28, 85, 218, 499, 1053, 2092, 3970, 7272, 12958, 22596, 38739, 65535, 109714, 182185, 300620, 493635, 807555, 1317360, 2144396, 3485032, 5657028, 9174560, 14869613, 24088399, 39009168, 63156437, 102233030, 165466347, 267786673 ]
[ "easy", "nonn" ]
A219884
[ 10, 21, 47, 129, 292, 600, 1158, 2148, 3863, 6784, 11679, 19763, 32938, 54144, 87860, 140803, 222883, 348483, 538145, 820756, 1236342, 1839593, 2704258, 3928566, 5641847, 8012546, 11257843, 15655113, 21555482, 29399758, 39737040, 53246333 ]
[ "nonn" ]
A008256
[ 1, 4, 10, 22, 43, 69, 95, 123, 162, 215, 269, 319, 372, 435, 513, 597, 675, 754, 843, 943, 1052, 1162, 1268, 1381, 1507, 1640, 1776, 1912, 2052, 2204, 2362, 2520, 2682, 2854, 3034, 3216, 3399, 3585, 3782, 3992, 4202, 4411, 4623, 4842, 5077, 5319, 5555, 5791 ]
[ "nonn" ]
A348221
[ 1, 1, 1, 1, 1, 3, 1, 1, 3, 3, 1, 1, 3, 1, 90, 1, 1, 3, 3, 90, 45, 1, 1, 3, 3, 90, 90, 3780, 1, 1, 3, 1, 90, 1, 3780, 140, 1, 1, 3, 3, 90, 90, 756, 945, 113400, 1, 1, 3, 3, 90, 45, 756, 756, 16200, 14175, 1, 1, 3, 1, 90, 10, 3780, 1, 113400, 1400, 7484400 ]
[ "nonn", "tabl", "frac" ]
A298380
[ 1, 65, 87, 504, 3271, 17749, 94292, 570906, 3475015, 19883608, 118823013, 713189236, 4231056637, 25230369597, 150909831526, 901408756376, 5382600739880, 32179607924271, 192375809257049, 1149796338265916 ]
[ "nonn" ]
A310313
[ 1, 3, 8, 15, 20, 23, 26, 29, 36, 45, 51, 52, 57, 57, 66, 73, 79, 78, 83, 85, 96, 105, 109, 106, 109, 111, 124, 133, 139, 134, 139, 139, 154, 161, 167, 160, 165, 167, 184, 193, 197, 188, 191, 193, 212, 221, 227, 216, 221, 221 ]
[ "nonn" ]
A050312
[ 1, -9, 1, 36, -9, 1, -39, 27, -9, 1, -114, -3, 27, -9, 1, 264, -117, -12, 27, -9, 1, 81, 111, -81, -12, 27, -9, 1, -429, 192, 108, -90, -12, 27, -9, 1, -69, -153, 30, 144, -90, -12, 27, -9, 1, 284, -387, 39, 27, 135, -90, -12, 27, -9, 1, 364, 101, -234, -123, 63 ]
[ "sign", "tabl" ]
A387760
[ 1, 5, 7, 67, 295, 325, 367, 397, 517, 551, 1021, 2321, 5647, 8071, 22997, 95611, 103297, 124171 ]
[ "nonn", "more" ]
A161246
[ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 3, 3, 3, 5, 4, 5, 6, 7, 7, 9, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22, 22, 24, 26, 28, 30, 34, 36, 39, 42, 45, 48, 53, 56, 61, 64, 69, 72, 79, 82, 89, 94, 100, 104, 114, 117, 126, 133, 142, 146, 159, 163, 174, 183, 193, 201, 216, 222 ]
[ "nonn" ]
A017866
[ 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 5, 6, 7, 9, 12, 16, 21, 25, 30, 36, 44, 55, 70, 90, 113, 140, 172, 211, 261, 325, 408, 512, 640, 796, 986, 1222, 1517, 1889, 2357, 2942, 3668, 4564, 5673, 7050, 8767 ]
[ "nonn", "easy" ]
A214776
[ 1, 1, 0, 1, 1, 0, 1, 2, 2, 0, 1, 3, 9, 5, 0, 1, 4, 20, 48, 14, 0, 1, 5, 35, 154, 275, 42, 0, 1, 6, 54, 350, 1260, 1638, 132, 0, 1, 7, 77, 663, 3705, 10659, 9996, 429, 0, 1, 8, 104, 1120, 8602, 40480, 92092, 62016, 1430, 0, 1, 9, 135, 1748, 17199, 115101, 451269, 807300, 389367, 4862, 0 ]
[ "nonn", "tabl" ]
A223142
[ 1, 2, 0, 0, 2, -4, 8, -16, 32, -56, 88, -112, 64, 240, -1264, 4064, -10814, 25500, -54200, 102832, -166020, 190808, 22304, -1058880, 4412424, -13496544, 35306480, -82326496, 172081840, -315115328, 464910368, -363016000, -871587808, 5713552456, -20289991016 ]
[ "sign" ]
A331436
[ 1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 3, 6, 1, 0, 1, 4, 21, 20, 1, 0, 1, 5, 55, 220, 70, 1, 0, 1, 6, 120, 1540, 3060, 252, 1, 0, 1, 7, 231, 7770, 73815, 53130, 924, 1, 0, 1, 8, 406, 30856, 1088430, 5461512, 1107568, 3432, 1, 0, 1, 9, 666, 102340, 11009376, 286243776, 581106988, 26978328, 12870, 1, 0 ]
[ "nonn", "tabl" ]
A055187
[ 1, 1, 1, 3, 1, 4, 1, 1, 3, 6, 1, 2, 3, 1, 4, 8, 1, 1, 2, 3, 3, 2, 4, 1, 6, 11, 1, 3, 2, 5, 3, 3, 4, 2, 6, 1, 8, 13, 1, 5, 2, 8, 3, 4, 4, 1, 5, 3, 6, 2, 8, 1, 11, 16, 1, 7, 2, 10, 3, 6, 4, 3, 5, 4, 6, 4, 8, 2, 11, 1, 13, 18, 1, 9, 2, 12, 3, 9, 4, 4, 5, 6, 6, 1, 7, 5, 8, 1, 10, 3, 11, 2, 13, 1, 16, 22, 1 ]
[ "nonn" ]
A059927
[ 1, 2, 4, 4, 12, 24, 48, 96, 196, 368, 760, 1524, 3064, 6068, 12168, 24360, 48668, 97160, 194952, 389416, 778832, 1557780, 3116216, 6229836, 12462296, 24923320, 49849604, 99694536, 199394616, 398783628, 797556364, 1595117676, 3190297400, 6380517544, 12761088588, 25522110948, 51044281208, 102088450460, 204177067944, 408353857832, 816708255152 ]
[ "nonn" ]
A134627
[ 1, 2, 1, 3, 2, 1, 4, 3, 5, 2, 1, 5, 4, 7, 3, 8, 2, 1, 6, 5, 9, 4, 11, 7, 10, 3, 8, 2, 1, 7, 6, 11, 5, 14, 9, 13, 4, 15, 18, 17, 10, 3, 8, 2, 1, 8, 7, 13, 6, 17, 11, 16, 5, 19, 14, 23, 9, 22, 4, 15, 33, 18, 35, 27, 10, 3, 2, 1, 9, 8, 15, 7, 20, 13, 19, 6, 23, 17, 28, 11, 27, 16, 21, 5, 24, 33 ]
[ "nonn", "tabf" ]
A104203
[ 1, 0, 0, 0, -12, 0, 0, 0, 3024, 0, 0, 0, -4390848, 0, 0, 0, 21224560896, 0, 0, 0, -257991277243392, 0, 0, 0, 6628234834692624000, 0, 0, 0, -3.197290808462601e+23, 0, 0, 0, 2.6571747463798136e+28, 0, 0, 0, -3.5642028477522894e+33, 0, 0 ]
[ "sign" ]
A173722
[ 0, 0, 1, 2, 4, 7, 12, 18, 26, 36, 49, 64, 82, 103, 128, 156, 188, 224, 265, 310, 360, 415, 476, 542, 614, 692, 777, 868, 966, 1071, 1184, 1304, 1432, 1568, 1713, 1866, 2028, 2199, 2380, 2570, 2770, 2980, 3201, 3432, 3674, 3927, 4192, 4468, 4756, 5056, 5369 ]
[ "nonn", "easy" ]
A008592
[ 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, 410, 420, 430, 440, 450, 460, 470, 480, 490, 500, 510, 520, 530 ]
[ "nonn", "easy" ]
A067613
[ 1, 0, -2, -1, 0, 2, 0, 6, 0, -4, 3, 0, -12, 0, 4, 0, -30, 0, 40, 0, -8, -15, 0, 90, 0, -60, 0, 8, 0, 210, 0, -420, 0, 168, 0, -16, 105, 0, -840, 0, 840, 0, -224, 0, 16, 0, -1890, 0, 5040, 0, -3024, 0, 576, 0, -32, -945, 0, 9450, 0, -12600, 0, 5040, 0, -720, 0, 32, 0, 20790, 0, -69300, 0, 55440, 0, -15840, 0, 1760, 0, -64 ]
[ "easy", "sign", "tabl", "look" ]
A332183
[ 3, 838, 88388, 8883888, 888838888, 88888388888, 8888883888888, 888888838888888, 88888888388888900, 8888888883888889000, 888888888838888900000, 8.88888888883889e+22, 8.888888888883889e+24, 8.88888888888839e+26, 8.888888888888838e+28, 8.888888888888884e+30 ]
[ "nonn", "base", "easy" ]
A379296
[ 7, 4, 29, 46, 6, 139, 8, 171, 239, 8, 10, 500, 6, 12, 822, 6, 6, 124, 6, 6, 6, 6, 1211, 1839, 8, 6, 6, 6, 6, 6, 168, 5546, 8, 24, 122, 6, 14, 6, 6, 6, 6, 6, 3109, 6, 10, 4565, 6, 34, 574, 6, 34, 6, 6, 6, 6, 6, 6, 11195, 6, 36, 6, 6, 426, 418, 8, 42, 10068, 8, 8, 6, 6, 6, 6, 25229, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 686, 6, 64, 6, 6, 6, 6, 394, 22241, 8, 6 ]
[ "nonn" ]
A166623
[ 1, 2, 1, 5, 8, 1, 29, 55, 1, 1, 3164, 3416, 1, 3665, 1, 1, 28, 96446, 923362, 1, 3435, 1, 34381388, 34381640, 1, 20017650854, 1, 93367, 30033648031, 8936504649405, 8936504649431, 1, 31, 93344, 17852200903304, 606046687989917 ]
[ "nonn", "base", "tabf" ]
A133252
[ 1, 5, 17, 45, 100, 196, 350, 582, 915, 1375, 1991, 2795, 3822, 5110, 6700, 8636, 10965, 13737, 17005, 20825, 25256, 30360, 36202, 42850, 50375, 58851, 68355, 78967, 90770, 103850, 118296, 134200, 151657, 170765, 191625, 214341, 239020, 265772 ]
[ "easy", "nonn" ]
A293873
[ 13, 113, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 213, 313, 413, 513, 613, 713, 813, 913, 1013, 1113, 1130, 1131, 1132, 1133, 1134, 1135, 1136, 1137, 1138, 1139, 1213, 1300, 1301, 1302, 1303, 1304, 1305, 1306, 1307, 1308, 1309, 1310, 1311, 1312, 1313, 1314, 1315 ]
[ "nonn", "base", "easy" ]
A042238
[ 25, 51, 76, 127, 1600, 16127, 195124, 211251, 406375, 1024001, 51606425, 104236851, 155843276, 260080127, 3276804800, 33028128127, 399614342324, 432642470451, 832256812775, 2097156096001, 105690061612825, 213477279321651, 319167340934476, 532644620256127 ]
[ "nonn", "cofr", "frac", "easy" ]
A070635
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 4, 3, 2, 1, 0, 9, 0, 0, 2, 3, 0, 4, 2, 0, 8, 7, 0, 3, 2, 3, 6, 3, 0, 7, 5, 3, 0, 1, 0, 1, 4, 0, 6, 3, 0, 10, 0, 3, 3, 5, 0, 5, 1, 9, 6, 3, 0, 5, 6, 0, 4, 10, 6, 2, 12, 9, 0, 7, 0, 3, 8, 3, 11, 7, 3, 15, 0, 0, 2, 6, 0, 7, 2, 12, 8 ]
[ "nonn", "base" ]
A255922
[ 5, 7, 8, 9, 10, 13, 21, 22, 23, 24, 25, 27, 29, 30, 31, 32, 33, 35, 38, 42, 43, 44, 45, 46, 48, 50, 54, 55, 60, 61, 64, 70, 74, 77, 78, 79, 85, 91, 94, 98, 100, 105, 110, 112, 113, 115, 120, 122, 126, 128, 131, 132, 133, 136, 138, 141, 150, 151, 152, 153, 154 ]
[ "nonn" ]
A161634
[ 1, 1, 3, 8, 25, 81, 274, 953, 3389, 12265, 45025, 167256, 627540, 2374672, 9052447, 34731401, 134010573, 519683813, 2024370167, 7917605996, 31080085431, 122407860927, 483558273368, 1915535953655, 7607408410408, 30283240593756 ]
[ "nonn" ]
A347614
[ 1, 3, 7, 25, 41, 91, 127, 673, 1009, 1441, 1871, 4093, 5149, 6553, 8191, 75361, 95201, 124543, 153217, 194561, 234781, 280897, 332949, 723673, 849601, 991251, 1168831, 1369117, 1569597, 1818301, 2065531, 35891553, 41771137, 48397471, 55839561, 65848861, 75339253 ]
[ "nonn" ]
A175503
[ 1, 2, 2, 3, 4, 2, 6, 4, 4, 5, 2, 8, 3, 6, 6, 8, 4, 9, 2, 10, 4, 12, 2, 7, 4, 16, 2, 15, 4, 18, 2, 14, 3, 3, 12, 6, 10, 8, 8, 5, 6, 9, 8, 12, 12, 10, 3, 16, 6, 20, 2, 24, 4, 14, 6, 18, 8, 16, 12, 9, 10, 10, 16, 9, 3, 18, 12, 15, 6, 24, 8, 20, 4, 21, 2, 30, 4, 32, 2, 27 ]
[ "nonn" ]
A364312
[ 1, 0, 1, 1, 2, 1, 1, 2, 1, 0, 1, 3, 1, 1, 3, 2, 0, 1, 1, 0, 2, 1, 1, 1, 4, 1, 1, 4, 3, 2, 2, 3, 3, 0, 1, 1, 0, 3, 2, 1, 1, 1, 2, 1, 1, 1, 2, 2, 0, 0, 1, 1, 0, 0, 2, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 5, 1, 1, 5, 4, 0, 1, 1, 0, 4, 3, 0, 2, 2, 0, 3, 3, 1, 1, 1, 3, 1, 1, 1, 3, 2, 2, 1, 2, 1, 2, 1, 2, 2 ]
[ "nonn", "tabf" ]
A383131
[ 0, 3, 12, 2, 5, 5, 8, 5, 11, 11, 50, 14, 14, 14, 53, 4, 17, 17, 43, 7, 7, 7, 20, 7, 46, 46, 59, 10, 10, 10, 23, 7, 49, 49, 62, 13, 13, 13, 13, 13, 26, 26, 39, 52, 52, 52, 65, 16, 16, 16, 78, 16, 16, 16, 29, 16, 42, 42, 55, 55, 55, 55, 68, 6, 19, 19, 19, 19, 19 ]
[ "nonn" ]
A079280
[ 1, 2, 2, 5, 7, 17, 26, 62, 99, 233, 382, 890, 1486, 3434, 5812, 13340, 22819, 52073, 89846, 204002, 354522, 801422, 1401292, 3155300, 5546382, 12444842, 21977516, 49155332, 87167164, 194392628, 345994216, 769547192, 1374282019, 3049104233 ]
[ "nonn" ]
A171665
[ 44, 75, 98, 104, 116, 135, 147, 171, 189, 230, 231, 242, 243, 244, 285, 296, 332, 344, 374, 375, 387, 429, 434, 507, 548, 603, 604, 609, 645, 663, 664, 724, 735, 741, 776, 782, 805, 819, 844, 874, 902, 903, 908, 931, 963, 969, 986, 1001, 1015, 1022, 1029 ]
[ "nonn" ]
A089153
[ 1, 6, 59, 812, 14389, 104038, 534113, 15837352, 177575597, 6681333014 ]
[ "dead" ]
A251260
[ 1, 2, 3, 6, 8, 13, 16, 24, 28, 40, 45, 61, 68, 89, 97, 124, 134, 167, 179, 219, 233, 281, 297, 353, 372, 437, 458, 533, 557, 642, 669, 765, 795, 903, 936, 1056, 1093, 1226, 1266, 1413, 1457, 1618, 1666, 1842, 1894, 2086, 2142, 2350, 2411, 2636, 2701, 2944 ]
[ "nonn", "easy" ]
A272716
[ 440, 28109312, 79228362752 ]
[ "nonn", "bref", "more", "hard" ]
A359891
[ 2, 3, 5, 7, 8, 11, 13, 17, 19, 23, 27, 29, 30, 31, 32, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 105, 107, 109, 110, 113, 125, 127, 128, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233 ]
[ "nonn" ]
A346214
[ 1, 1, 3, 1, 21, 42, 1, 315, 1260, 2520, 1, 6975, 104160, 312480, 624960, 1, 373023, 23436000, 104993280, 314979840, 629959680, 1, 32252031, 9175162752, 121912197120, 426692689920, 1280078069760, 2560156139520, 1, 6619979775, 9978120069120, 421755245936640, 1989607056998400, 6963624699494400, 20890874098483200, 41781748196966400 ]
[ "nonn", "tabl" ]
A001140
[ 4, 14, 1114, 3114, 132114, 1113122114, 311311222114, 13211321322114, 1.1131221131211132e+21, 3.1131122211311123e+25, 1.3211321322113312e+29, 1.1131221131211132e+43, 3.1131122211311123e+55 ]
[ "nonn", "base", "easy", "nice" ]
A194138
[ 2, 6, 13, 22, 34, 48, 64, 83, 104, 128, 154, 182, 213, 246, 282, 320, 361, 404, 449, 497, 547, 600, 655, 712, 772, 834, 899, 966, 1036, 1108, 1182, 1259, 1338, 1420, 1504, 1590, 1679, 1770, 1864, 1960, 2058, 2159, 2262, 2368, 2476, 2587, 2700, 2815 ]
[ "nonn" ]
A283879
[ 4, 1, 0, 3, 3, 1, 4, 8, 7, 1, 4, 12, 11, 1, 4, 16, 15, 1, 4, 20, 19, 1, 4, 24, 23, 1, 4, 28, 27, 1, 4, 32, 31, 1, 4, 36, 35, 1, 4, 40, 39, 1, 4, 44, 43, 1, 4, 48, 47, 1, 4, 52, 51, 1, 4, 56, 55, 1, 4, 60, 59, 1, 4, 64, 63, 1, 4, 68, 67, 1, 4, 72, 71, 1, 4 ]
[ "nonn" ]
A388469
[ 9, 6, 0, 2, 9, 1, 9, 6, 9, 2, 2, 4, 2, 2, 5, 6, 6, 6, 0, 3, 4, 7, 5, 9, 7, 7, 0, 9, 3, 0, 6, 2, 3, 0, 7, 6, 2, 5, 5, 8, 9, 8, 6, 1, 9, 0, 0, 0, 8, 0, 8, 4, 3, 3, 9, 2, 7, 7, 5, 3, 0, 0, 4, 0, 5, 9, 9, 6, 4, 9, 6, 8, 9, 9, 2, 7, 1, 0, 7, 3, 1, 6, 9, 2, 6, 6, 7 ]
[ "nonn", "cons" ]
A083528
[ 1, 1, 5, 1, 5, 1, 5, 1, 17, 5, 5, 1, 5, 25, 5, 1, 5, 1, 5, 25, 41, 25, 5, 1, 25, 25, 53, 9, 5, 25, 5, 1, 59, 25, 45, 1, 5, 25, 47, 65, 5, 1, 5, 9, 35, 25, 5, 1, 19, 25, 23, 1, 5, 1, 45, 81, 11, 25, 5, 25, 5, 25, 125, 1, 5, 49, 5, 81, 125, 65, 5, 1, 5, 25, 125, 17, 3, 25, 5, 65, 161, 25, 5, 1, 65 ]
[ "easy", "nonn" ]
A014179
[ 1, -1, 1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
[ "sign", "easy" ]
A300122
[ 1, 4, 13, 51, 183, 771, 3087, 13601, 59933, 278797, 1311719, 6453606, 32179898, 166075956, 871713213, 4704669005, 25831172649, 145260890323 ]
[ "nonn", "more" ]
A010617
[ 3, 5, 8, 3, 0, 4, 7, 8, 7, 1, 0, 1, 5, 9, 4, 6, 4, 8, 5, 3, 8, 6, 9, 6, 3, 6, 7, 4, 5, 8, 0, 6, 6, 6, 2, 7, 2, 1, 5, 4, 8, 2, 0, 5, 9, 3, 0, 9, 5, 6, 3, 5, 1, 5, 7, 0, 4, 3, 9, 8, 0, 3, 6, 5, 4, 3, 9, 4, 8, 6, 4, 8, 5, 9, 5, 7, 7, 1, 1, 4, 7, 7, 1, 6, 4, 7, 4, 6, 1, 3, 4, 5, 2, 5, 1, 1, 8, 7, 5 ]
[ "nonn", "cons" ]
A260507
[ 2, 7, 179, 619, 17807 ]
[ "nonn", "hard", "more" ]
A239579
[ 1, 0, 1, 0, 0, 2, 3, 2, 0, 3, 1, 2, 2, 3, 2, 2, 1, 3, 3, 1, 1, 1, 8, 4, 3, 1, 2, 4, 2, 2, 4, 5, 3, 4, 5, 3, 6, 4, 6, 3, 5, 5, 6, 3, 3, 10, 5, 10, 4, 3, 6, 4, 4, 7, 6, 5, 3, 3, 6, 5, 6, 3, 5, 9, 3, 6, 5, 8, 4, 9, 9, 10, 7, 12, 4, 9, 7, 7, 10, 11 ]
[ "nonn" ]
A237518
[ 5, 3, 4729, 13, 5, 17, 37, 5280071830550089, 5, 97, 13, 17, 61, 1824001, 53, 109, 11, 3301, 1009, 19, 241, 241, 17, 11, 29, 409, 6841, 11, 17, 3169, 181, 41, 157, 3, 457, 13, 10369, 2.3178174889358073e+38, 173, 277, 19, 7297, 31, 53, 3049, 373 ]
[ "nonn" ]
A098070
[ 1, 0, 8, 24, 152, 816, 5320, 33840, 229144, 1560864, 10906576, 76962912, 550406472, 3969725856, 28875757200, 211436151456, 1557623566104, 11533972310976, 85802992349344, 640901090847360, 4804716170926672, 36138383022850370, 272621594933332000 ]
[ "nonn" ]
A148714
[ 1, 1, 3, 7, 24, 67, 247, 762, 2895, 9497, 36627, 124992, 486807, 1707285, 6693429, 23951625, 94333590, 342762753, 1354438586, 4980627013, 19729351523, 73247980483, 290692026962, 1087691576455, 4322826784048, 16279785225723, 64774066504350, 245267148495207, 976746419471146, 3715545792176250 ]
[ "nonn", "walk" ]
A382048
[ 1, 2, 2, 3, 3, 4, 4, 5, 4, 5, 5, 6, 6, 7, 6, 7, 7, 8, 8, 9, 7, 8, 8, 9, 9, 10, 9, 10, 10, 11, 11, 12, 9, 10, 10, 11, 11, 12, 11, 12, 12, 13, 13, 14, 12, 13, 13, 14, 14, 15, 14, 15, 15, 16, 16, 17, 13, 14, 14, 15, 15, 16, 15, 16, 16, 17, 17, 18, 16, 17, 17, 18, 18, 19, 18, 19, 19, 20, 20, 21, 18, 19, 19 ]
[ "nonn" ]
A359579
[ 1, -1, -1, 0, 0, 1, -1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, -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, 1, -1 ]
[ "sign", "mult" ]
A161928
[ 29, 59, 103, 137, 149, 157, 173, 179, 181, 211, 227, 263, 311, 317, 331, 349, 367, 383, 397, 419, 421, 461, 467, 479, 491, 509, 523, 541, 569, 571, 601, 607, 613, 619, 641, 643, 653, 661, 691, 709, 751, 761, 773, 787, 809, 821, 823, 839, 853, 877, 881, 883 ]
[ "nonn" ]
A114918
[ 1, 0, 1, 1, 4, 10, 41, 140, 659, 2885, 14956, 77990, 452409, 2678676, 17176251, 113458801, 795016044, 5760341506, 43802563937, 344138100628, 2817486388739, 23809341016525, 208552149482436, 1882541647472398, 17549345518850192 ]
[ "nonn" ]
A351807
[ 1, 2, 3, 5, 6, 8, 11, 12, 13, 15, 16, 18, 19, 21, 22, 23, 25, 26, 27, 28, 31, 32, 33, 36, 41, 42, 43, 45, 47, 48, 49, 51, 52, 53, 55, 61, 62, 63, 64, 66, 68, 71, 74, 76, 78, 82, 83, 84, 93, 94, 95, 96, 97, 98, 99, 111, 112, 113, 114, 115, 116, 118, 121, 122, 123 ]
[ "nonn", "base" ]
A075960
[ 8191, 516223, 3728271, 5975219, 7165269, 16161302, 50947772, 84585318, 101553934, 128162681, 152288542, 288829357, 415988810, 562392274, 710829887, 1104970424, 1584534888, 2257773870, 2991559250, 4278801141 ]
[ "nonn" ]
A187180
[ 1, 1, 2, 3, 2, 3, 4, 5, 4, 5, 6, 7, 6, 7, 8, 9, 8, 9, 10, 11, 10, 11, 12, 13, 12, 13, 14, 15, 14, 15, 16, 17, 16, 17, 18, 19, 18, 19, 20, 21, 20, 21, 22, 23, 22, 23, 24, 25, 24, 25, 26, 27, 26, 27, 28, 29, 28, 29, 30, 31, 30, 31, 32, 33, 32, 33, 34, 35, 34, 35, 36, 37, 36, 37, 38, 39, 38, 39, 40, 41, 40, 41, 42, 43, 42, 43, 44, 45, 44, 45, 46, 47, 46, 47, 48, 49, 48, 49, 50, 51, 50, 51, 52, 53, 52, 53, 54, 55, 54, 55, 56, 57, 56, 57, 58, 59, 58, 59, 60, 61 ]
[ "nonn", "easy" ]