id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A105230
[ 1, 5, 151, 60879, 4292660729, 18446743888401504000 ]
[ "nonn", "more" ]
A387839
[ 1, 2, 4, 8, 12, 16, 32, 64, 72, 128, 144, 256, 360, 432, 512, 864, 1024, 1728, 2048, 2592, 4096, 5184, 8192, 10368, 10800, 15552, 16384, 20736, 31104, 32768, 62208, 65536, 75600, 93312, 124416, 129600, 131072, 186624, 248832, 262144, 32...
[ "nonn", "easy" ]
A082112
[ 1, 15, 37, 67, 105, 151, 205, 267, 337, 415, 501, 595, 697, 807, 925, 1051, 1185, 1327, 1477, 1635, 1801, 1975, 2157, 2347, 2545, 2751, 2965, 3187, 3417, 3655, 3901, 4155, 4417, 4687, 4965, 5251, 5545, 5847, 6157, 6475, 6801, 7135, ...
[ "easy", "nonn" ]
A105622
[ 1, 0, -3, -16, -104, -908, -9980, -130756, -1978044, -33864628, -646882700, -13637768276, -314550050684, -7879500818548, -213050486593260, -6184793428783156, -191870459680722530, -6335136849263879000, -221817478808912330000, -8.209644712019737e+21 ]
[ "sign" ]
A003411
[ 1, 2, 3, 4, 6, 8, 11, 15, 21, 29, 40, 55, 76, 105, 145, 200, 276, 381, 526, 726, 1002, 1383, 1909, 2635, 3637, 5020, 6929, 9564, 13201, 18221, 25150, 34714, 47915, 66136, 91286, 126000, 173915, 240051, 331337, 457337, 631252, 871303, ...
[ "nonn", "easy" ]
A369063
[ 0, 27, 75, 231, 311, 551, 1031, 1991, 2231, 3191, 5591, 14951, 17111, 35591, 39191, 49271, 50951, 76151, 103991, 107159, 114791, 117911, 119831, 166871, 180311, 201431, 255191, 329111, 366791, 391751, 400391, 435431, 465911, 514751, 516071, 57655...
[ "nonn" ]
A253281
[ 0, 1, 2, 1, 3, 2, 3, 3, 3, 4, 4, 4, 3, 5, 5, 4, 5, 4, 5, 6, 5, 3, 5, 5, 5, 6, 6, 4, 4, 4, 5, 6, 6, 6, 5, 5, 4, 5, 4, 6, 7, 6, 5, 6, 5, 5, 5, 5, 5, 7, 7, 5, 6, 6, 6, 6, 6, 5, 6, 6, 7, 6, 6, 6...
[ "nonn", "tabl", "easy" ]
A292955
[ 1, 0, 0, 0, -1, -5, -15, -35, -35, 504, 6090, 45870, 270930, 1215500, 1995994, -42118440, -733409495, -8069463780, -70153266240, -468024155016, -1498366231020, 21132982355940, 568009017066260, 8607952077741940, 101448276642079060, 937291639168833800 ]
[ "sign" ]
A335179
[ 0, 2, 7, 26, 55, 118, 203, 350, 513, 802, 1153, 1594, 2105, 2878, 3701, 4770, 5973, 7510, 9221, 11282, 13411, 16202, 19255, 22674, 26371, 31018, 35865, 41422, 47377, 54114, 61297, 69470, 77803, 87758, 98311, 109766, 121851, 136006, 150443, ...
[ "nonn" ]
A201177
[ 13, 1723, 10993, 16883, 34303, 179693, 253273, 397543, 663263, 1250243, 1503823, 1945093, 4563373, 6475153, 6838163, 9304343, 10733453, 14016113, 17214763, 24134053, 26796883, 27726173, 29648713, 56953133, 60044953, 82906883 ]
[ "nonn", "easy" ]
A194864
[ 1, 2, 3, 4, 5, 6, 10, 7, 8, 9, 14, 11, 15, 12, 13, 19, 16, 20, 17, 21, 18, 25, 22, 26, 23, 27, 24, 28, 32, 36, 29, 33, 30, 34, 31, 35, 40, 44, 37, 41, 45, 38, 42, 39, 43, 49, 53, 46, 50, 54, 47, 51, 55, 48, 5...
[ "nonn" ]
A334172
[ 2, 1, 5, 3, 9, 3, 29, 27, 21, 29, 5, 51, 61, 59, 37, 49, 57, 1, 123, 113, 121, 99, 117, 71, 123, 125, 115, 121, 99, 113, 3, 245, 253, 225, 253, 245, 193, 251, 245, 225, 249, 245, 129, 251, 253, 235, 243, 195, 249, 243,...
[ "base", "nonn" ]
A134877
[ 1, 2, 8, 7, 0, 3, 7, 0, 9, 6, 6, 4, 1, 6, 8, 1, 8, 1, 4, 7, 1, 1, 3, 2, 0, 2, 9, 7, 5, 5, 8, 2, 0, 4, 2, 5, 9, 0, 4, 2, 1, 6, 9, 5, 5, 3, 4, 0, 2, 2, 2, 0, 8, 1, 0, 2, 6, 7, 9, 8, 7, 6, 5, 9...
[ "nonn", "cons" ]
A148686
[ 1, 1, 3, 7, 22, 67, 228, 775, 2787, 10096, 37692, 142300, 546739, 2124319, 8349915, 33135509, 132647446, 535088379, 2174051788, 8887400681, 36550977240, 151088635064, 627703523526, 2619294449873, 10975951665533, 46172369684781, 194925589213610, 825737811918024, ...
[ "nonn", "walk" ]
A174907
[ 1, 1, 3, 1, 4, 2, 1, 7, 4, 8, 2, 1, 10, 5, 1, 11, 2, 6, 3, 15, 1, 16, 8, 1, 18, 4, 9, 3, 19, 2, 1, 22, 10, 6, 23, 2, 13, 25, 4, 1, 26, 14, 7, 1, 31, 15, 3, 32, 2, 8, 5, 34, 17, 1, 35, 2, 18, 3, 38, ...
[ "nonn" ]
A304592
[ 1, 23, 82, 456, 2207, 10949, 54357, 269732, 1337127, 6635686, 32914816, 163277978, 810008547, 4018201206, 19933310071, 98884549774, 490541211576, 2433455551301, 12071779000380, 59885128155030, 297075468364227, 1473718630523999 ]
[ "nonn" ]
A183781
[ 256, 3653, 83799, 1604473, 34228999, 701022093, 14750484447, 307446383061, 6453534773135, 135163113130301, 2836308059464159, 59486265398855704, 1248295058919869000, 26191521416003320000, 549635175272089000000, 1.1533834378992924e+22, 2.420441328858451e+23 ]
[ "nonn" ]
A108735
[ 1, 6, -18, 108, -810, 6804, -61236, 577368, -5629338, 56293380, -574192476, 5950722024, -62482581252, 663276631752, -7106535340200, 76750581674160, -834662575706490, 9132190534200420, -100454095876204620, 1110282112315945900, -12324131446707000000 ]
[ "sign", "easy" ]
A186853
[ 16, 208, 976, 2576, 5056, 8320, 12368, 17200, 22816, 29216, 36400, 44368, 53120, 62656, 72976, 84080, 95968, 108640, 122096, 136336, 151360, 167168, 183760, 201136, 219296, 238240, 257968, 278480, 299776, 321856, 344720, 368368, 392800 ]
[ "nonn" ]
A335229
[ 4, 7, 9, 10, 12, 14, 15, 17, 18, 20, 22, 23, 25, 26, 27, 28, 30, 31, 33, 35, 36, 38, 39, 40, 41, 43, 44, 46, 47, 48, 49, 51, 52, 54, 56, 57, 59, 60, 61, 62, 64, 65, 67, 68, 69, 70, 72, 73, 74, 75, 77, 78, 80, 8...
[ "nonn" ]
A360266
[ 1, 2, 6, 22, 82, 312, 1210, 4752, 18834, 75184, 301856, 1217604, 4930626, 20032052, 81615072, 333328532, 1364264250, 5594210292, 22977466864, 94517423444, 389316529512, 1605533230256, 6628467569292, 27393187077144, 113310732332274, 469101108803052 ]
[ "nonn" ]
A285200
[ 1, 2, 1, 2, 3, 2, 1, 2, 3, 2, 1, 2, 3, 4, 3, 2, 1, 2, 3, 2, 1, 2, 3, 4, 3, 2, 1, 2, 3, 2, 1, 2, 3, 4, 3, 2, 1, 2, 3, 2, 1, 2, 3, 4, 5, 4, 3, 2, 1, 2, 3, 2, 1, 2, 3, 4, 3, 2, 1, 2, 3, 2, 1, 2...
[ "nonn" ]
A097281
[ 0, 1, 2, 5, 9, 18, 35, 71, 144, 294, 601, 1231, 2526, 5191, 10672, 21950, 45159, 92920, 191214, 393512, 809864, 1666775, 3430425, 7060297, 14531166, 29907455, 61554442, 126689294, 260747884, 536663296, 1104544280, 2273340315 ]
[ "nonn" ]
A191205
[ 1, 2, 5, 6, 7, 8, 16, 17, 18, 20, 22, 26, 30, 43, 52, 53, 56, 61, 62, 66, 68, 70, 78, 80, 86, 92, 102, 118, 142, 151, 160, 161, 170, 178, 188, 196, 200, 206, 210, 212, 222, 232, 236, 242, 246, 260, 262, 268, 270, 278, ...
[ "nonn" ]
A047250
[ 0, 3, 4, 5, 6, 9, 10, 11, 12, 15, 16, 17, 18, 21, 22, 23, 24, 27, 28, 29, 30, 33, 34, 35, 36, 39, 40, 41, 42, 45, 46, 47, 48, 51, 52, 53, 54, 57, 58, 59, 60, 63, 64, 65, 66, 69, 70, 71, 72, 75, 76, 77, 78, 81, ...
[ "nonn", "easy" ]
A170726
[ 1, 45, 1980, 87120, 3833280, 168664320, 7421230080, 326534123520, 14367501434880, 632170063134720, 27815482777927680, 1223881242228818000, 53850774658067990000, 2.3694340849549915e+21, 1.0425509973801963e+23 ]
[ "nonn" ]
A371624
[ 1, 1, 144, 1755758592000, 6.605211151320734e+37 ]
[ "nonn" ]
A133929
[ 9, 21, 31, 43, 55, 89 ]
[ "nonn", "fini" ]
A224063
[ 1163, 180821, 6643979, 114643788, 1274747540, 11060805360, 83942450048, 591725806925, 3973992584299, 25579886531225, 157381574935619, 920939113739591 ]
[ "nonn" ]
A224692
[ 1, 5, 10, 14, 28, 32, 64, 68, 136, 140, 280, 284, 568, 572, 1144, 1148, 2296, 2300, 4600, 4604, 9208, 9212, 18424, 18428, 36856, 36860, 73720, 73724, 147448, 147452, 294904, 294908, 589816, 589820, 1179640, 1179644, 2359288, 2359292, 471858...
[ "nonn", "easy" ]
A040780
[ 28, 2, 3, 1, 7, 2, 1, 6, 2, 3, 11, 11, 3, 2, 6, 1, 2, 7, 1, 3, 2, 56, 2, 3, 1, 7, 2, 1, 6, 2, 3, 11, 11, 3, 2, 6, 1, 2, 7, 1, 3, 2, 56, 2, 3, 1, 7, 2, 1, 6, 2, 3, 11, 11, 3, 2, 6, 1, 2, 7, 1, 3,...
[ "nonn", "cofr", "easy" ]
A354215
[ 1, 2, 3, 7, 19, 29, 81, 125, 353, 161, 1545, 705, 2001, 3089, 8769, 24897, 38433, 109121, 309825, 478273, 1357953, 2096257, 5951873, 2715905 ]
[ "nonn", "more" ]
A301996
[ 3, 18, 84, 468, 2856, 17800, 110036, 674984, 4130664, 25284068, 154853080, 948637896, 5811528980, 35601208264, 218086661704, 1335953081860, 8183781374680, 50132301702344, 307101237458324, 1881245567361512 ]
[ "nonn" ]
A037049
[ 6, 143, 10403, 1022117, 100160063, 10002200057, 1000036000099, 100000980001501, 10000004400000260, 1000000016000000000, 100000000520000000000, 1.00000000022e+22, 1.0000000001e+24, 1.0000000000088e+26, 1.00000000000098e+28 ]
[ "nonn", "base" ]
A118296
[ 21, 13, 32, 24, 43, 35, 54, 46, 65, 57, 76, 68, 87, 79, 98, 90, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, ...
[ "base", "nonn", "easy" ]
A047970
[ 1, 2, 5, 14, 43, 144, 523, 2048, 8597, 38486, 182905, 919146, 4866871, 27068420, 157693007, 959873708, 6091057009, 40213034874, 275699950381, 1959625294310, 14418124498211, 109655727901592, 860946822538675, 6969830450679864, 58114638923638580 ]
[ "nonn" ]
A223803
[ 256, 65536, 4816168, 151310069, 2844578252, 37217420249, 370255807510, 2967702264487, 19953618004020, 115901407902175, 594677748128499, 2742258352954012, 11522283571283326, 44607717280309710, 160585424830894300 ]
[ "nonn" ]
A253638
[ 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 2, 1, 1, 1, 0, 0, 1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 2, 0, 1, 2, 0, 3, 3, 2, 2, 3, 3, 4, 1, 1, 1, 4, 7, 4, 4, 5, 4, 3, 4, 6, 6, 3, 5, 2, 2, 0, 3, 4, 5, 6, 7...
[ "nonn", "base" ]
A067630
[ 1, 6, 2520, 7484400, 81729648000, 2375880867360000, 151476660579404150000, 1.8608907752179802e+25, 4.0150579366103137e+30, 1.4190419265361834e+36, 7.781174499968507e+41 ]
[ "nonn" ]
A132578
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 20, 23, 24, 25, 26, 28, 30, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 49, 53, 54, 55, 57, 59, 62, 64, 73, 80, 82, 83, 90, 98, 100, 103, 104, 105, 107, 109, 112, 113, 115, 116, 117...
[ "nonn" ]
A104552
[ 1, 1, 1, 1, 3, 2, 1, 8, 9, 4, 1, 21, 35, 25, 8, 1, 55, 128, 128, 66, 16, 1, 144, 448, 591, 422, 168, 32, 1, 377, 1515, 2537, 2350, 1298, 416, 64, 1, 987, 4984, 10304, 11897, 8481, 3796, 1008, 128, 1, 2584, 16032, 40057, ...
[ "nonn", "tabl" ]
A349714
[ 1, 1, 4, 37, 532, 10426, 259300, 7823908, 277713904, 11339452792, 523621438336, 26982030104536, 1534947906550528, 95550736737542460, 6460746383585985000, 471533064029919800000, 3.694694809109175e+22, 3.093472887944746e+24 ]
[ "nonn" ]
A354600
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 1536, 2304, 3456, 5184, 7776, 11664, 17496, 26244, 39366, 59049, 78732, 104976, 139968, 186624, 248832, 331776, 442368, 589824, 786432, 1048576, 1310720, 163...
[ "nonn", "easy" ]
A151594
[ 0, 3, 81808, 56283220, 12683975484, 1689235173192, 168235956902400 ]
[ "nonn" ]
A131383
[ 1, 3, 6, 8, 13, 16, 23, 25, 30, 35, 46, 46, 59, 66, 75, 74, 91, 91, 110, 112, 125, 136, 159, 152, 169, 182, 195, 199, 228, 223, 254, 253, 274, 291, 316, 297, 334, 353, 378, 373, 414, 409, 452, 460, 475, 498, 545, 520, 55...
[ "nonn", "base" ]
A357024
[ 1, 0, 2, 6, 74, 750, 11402, 195006, 3994202, 93164910, 2455754762, 72098755806, 2333497474970, 82569245246670, 3170700672801482, 131342693516044930, 5837883571730771000, 277151780512413420000, 1.399701826535014e+22, 7.493046178923457e+23 ]
[ "nonn" ]
A121419
[ 1, 2, 11, 101, 1305, 21745, 443329, 10679494, 296547736, 9319259500, 326788327650, 12643827604842, 534889691765631, 24555735428777264, 1215611513578215400, 64542477563559756000, 3.658333757447085e+21 ]
[ "nonn" ]
A089461
[ 1, 3, 13, 81, 689, 7553, 101961, 1639529, 30640257, 653150529, 15649353929, 416495026841, 12193949444193, 389572905351425, 13488730646528264, 503205102139970000, 20123584054543823000, 858863606297804400000, 3.896750049297775e+22, 1.8729746088606847e+24 ]
[ "nonn" ]
A186317
[ 2, 3, 5, 7, 8, 10, 12, 13, 15, 17, 19, 20, 22, 24, 25, 27, 29, 30, 32, 34, 36, 37, 39, 41, 42, 44, 46, 48, 49, 51, 53, 54, 56, 58, 60, 61, 63, 65, 66, 68, 70, 71, 73, 75, 77, 78, 80, 82, 83, 85, 87, 89, 90, 92,...
[ "nonn" ]
A351981
[ 1, 0, 0, 1, 0, 0, 0, 0, 1, 2, 1, 0, 2, 2, 2, 4, 2, 1, 6, 8, 7, 9, 13, 14, 15, 19, 21, 23, 32, 40, 41, 45, 66, 81, 80, 96, 124, 139, 160, 194, 221, 246, 303, 360, 390, 446, 546, 634, 703, 810, 971, 1115, 1250, 1...
[ "nonn" ]
A268321
[ 2, 4, 10, 25, 66, 177, 485, 1348, 3797, 10812, 31076, 90015, 262432, 769199, 2264475, 6690450, 19825011, 58884842, 175238730, 522316253, 1558776782, 4656673837, 13922711281, 41654206400, 124688153137, 373402997944, 1118614401040 ]
[ "nonn" ]
A349610
[ 0, 0, 1, 1, 4, 7, 17, 20, 35, 45, 69, 84, 114, 136, 184, 217, 272, 314, 389, 443, 528, 597, 702, 784, 901, 1018, 1166, 1268, 1442, 1589, 1791, 1926, 2157, 2332, 2584, 2800, 3058, 3293, 3596, 3872, 4194, 4485, 4878, 5184, 5590, ...
[ "nonn" ]
A216856
[ 12, 10, 7, 29, 54, 29, 48, 47, 25, 28, 8, 32, 9, 7, 44, 43, 16, 21, 79, 75, 54, 54, 39, 51, 52, 62, 30, 27, 83, 104, 93, 79, 79, 73, 120, 61, 102, 220, 870, 135, 4350 ]
[ "nonn", "base", "more" ]
A326955
[ 1, 1, 8, 4, 512, 256, 16384, 8192, 2097152, 1048576, 16777216, 8388608, 4294967296, 2147483648, 68719476736, 34359738368, 35184372088832, 17592186044416, 281474976710656, 140737488355328, 18014398509481984 ]
[ "nonn", "frac", "walk" ]
A354531
[ 1, 2, 3, 5, 7, 9, 13, 17, 19, 31, 61, 67, 89, 107, 127, 137, 521, 607, 727 ]
[ "nonn", "hard", "more" ]
A097840
[ 1, 84, 6971, 578509, 48009276, 3984191399, 330639876841, 27439125586404, 2277116783794691, 188973253929372960, 15682502959354160000, 1.301458772372466e+21, 1.0800539560395532e+23 ]
[ "nonn", "easy" ]
A070619
[ 0, 1, 32, 27, 16, 29, 0, 31, 8, 9, 28, 23, 0, 25, 20, 27, 4, 17, 0, 19, 32, 9, 16, 11, 0, 13, 8, 27, 28, 5, 0, 7, 20, 9, 4, 35, 0, 1, 32, 27, 16, 29, 0, 31, 8, 9, 28, 23, 0, 25, 20, 27, 4, 17, 0, 19, 32, ...
[ "nonn", "easy" ]
A269976
[ 1, 3, 1, 1, 1, 2, 2, 3, 1, 3, 3, 2, 1, 1, 3, 2, 1, 4, 1, 1, 1, 1, 1, 2, 1, 2, 2, 1, 1, 2, 4, 2, 2, 1, 1, 1, 2, 1, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 2, 1, 2, 2, 3, 1, 1, 1, 5, 1, 2, 2, 1, 1, 2, 3...
[ "nonn", "easy" ]
A059831
[ 0, -2, -4, -20, -252, -5610, -187944, -8760272, -540315160, -42535905530, -4158250120140, -493938370048692, -70043599065844400, -11684931733886456000, -2.2649854877079637e+21, -5.047528888832215e+23, -1.2813701740499424e+26 ]
[ "sign" ]
A323067
[ 2, 3, 7, 11, 31, 47, 59, 127, 191, 239, 251, 367, 827, 1019, 1471, 1723, 2011, 2939, 4079, 4091, 4591, 6427, 7867, 8191, 10607, 11483, 12539, 13679, 13883, 14447, 14783, 14939, 15227, 15359, 16127, 16187, 16319, 18367, 26683, 27583, 284...
[ "nonn", "base" ]
A066237
[ 1, 3, 7, 19, 67, 307, 1747, 11827, 92467, 818227, 8075827, 87909427, 1045912627, 13499954227, 187856536627, 2803205272627, 44648785048627, 756023641240627, 13560771052696628, 256850971870360640, 5122654988223641000 ]
[ "nonn", "easy" ]
A307963
[ 2218040, 4924700, 6654120, 15526280, 14774100, 28834520, 37706680, 42142760, 34472900, 46578840, 51014920, 64323160, 68759240, 64021100, 82067480, 86503560, 90939640, 95375720, 104247880, 83719900, 113120040, 117556120, 93569300, 126428280, 103418700, 130864360 ]
[ "nonn" ]
A042786
[ 30, 61, 91, 152, 2219, 2371, 4590, 11551, 697650, 1406851, 2104501, 3511352, 51263429, 54774781, 106038210, 266851201, 16117110270, 32501071741, 48618182011, 81119253752, 1184287734539, 1265406988291, 2449694722830, 6164796433951, 372337480759890 ]
[ "nonn", "frac", "easy" ]
A266382
[ 1, 7, 17, 119, 257, 1799, 4369, 30583, 65537, 458759, 1114129, 7798903, 16843009, 117901063, 286331153, 2004318071, 4294967297, 30064771079, 73014444049, 511101108343, 1103806595329, 7726646167303, 18764712120593, 131352984844151, 281479271743489 ]
[ "nonn", "easy" ]
A227603
[ 1, 32, 8925, 8285506, 16104165970, 51630369256916, 237791136700913760, 1.441565191975184e+21, 1.0844768238749437e+25, 9.710681806281638e+28, 1.0037697936699806e+33, 1.1703712713157397e+37 ]
[ "nonn" ]
A208831
[ 1, 1, 4, 34, 470, 9246, 239254, 7735818, 301515326, 13798284326, 726653380406, 43347208596090, 2892081998352630, 213573932091190340, 17305963353368020000, 1.5274090323894946e+21, 1.4591077465945835e+23, 1.5004445714376214e+25, 1.6530297094282088e+27 ]
[ "nonn" ]
A086978
[ 211, 1847, 5623, 30631, 81509, 82129, 162209, 173429, 404671, 542683, 544367, 1101071, 1444411, 2238931, 5845309, 6752747, 6958801, 11981587, 13626407, 49269739, 83751287, 147684323, 166726561, 378044179, 895858267, 1872852203 ]
[ "nonn" ]
A333458
[ 4, 84, 20, 692, 312, 72, 4, 2708, 2020, 400, 88, 0, 4, 7876, 5764, 1580, 264, 20, 4, 18220, 14868, 4960, 904, 112, 24, 36764, 30624, 11224, 2496, 304, 52, 66004, 55192, 18624, 3952, 472, 48, 111764, 97840, 40008, 9912, 1740, 244, ...
[ "nonn", "tabf" ]
A226282
[ 0, 1, 4, 16, 72, 324, 1728, 9216, 57600, 360000, 2592000, 18662400, 152409600, 1244678400, 11379916800, 104044953600, 1053455155200, 10666233446400, 118513704960000, 1316818944000000, 15933509222400000, 192795461591040000, 2523867860828160000, 33039724723568640000 ]
[ "nonn" ]
A010105
[ 2, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, -4, 3, 0, 0, 0, -30, 48, -19, 0, -36, -136, 468, -408, -35, -180, -115, 3108, -5694, 2648, -321, 1664, 14634, -51628, 54367, -18404, 16323, 46544, -371630, 662344, -459346, 222776, -55089, -213704...
[ "sign" ]
A198452
[ 3, 13, 13, 71, 177, 71, 433, 1399, 1399, 433, 2763, 14109, 26704, 14109, 2763, 17941, 146187, 421185, 421185, 146187, 17941, 117263, 1532249, 7302285, 13048509, 7302285, 1532249, 117263, 768313, 16411255, 128955464, 396482929, 396482929 ]
[ "nonn", "tabl" ]
A071090
[ 1, 1, 0, 2, 0, 5, 0, 2, 3, 0, 0, 7, 0, 0, 8, 4, 0, 3, 0, 9, 0, 0, 0, 10, 5, 0, 0, 11, 0, 11, 0, 4, 0, 0, 12, 6, 0, 0, 0, 13, 0, 13, 0, 0, 14, 0, 0, 14, 7, 5, 0, 0, 0, 15, 0, 15, 0, 0, 0, 16, 0, ...
[ "nonn", "easy" ]
A102911
[ 0, 1, 1, 3, 10, 45, 210, 1176, 6670, 41041, 258840, 1697403, 11359761, 77956341, 543625851, 3855429766, 27702225271, 201515674128, 1481195012220, 10991843660826, 82256068767106, 620288742329028, 4709854127998971, 35987845277616940, 276563426284762620 ]
[ "nonn" ]
A092257
[ 3, 5, 7, 7, 3, 7, 15, 19, 8, 20, 5, 17, 6, 10, 18, 11, 23, 8, 20, 9, 13, 25, 14, 26, 23, 4, 10, 22, 28, 12, 26, 10, 28, 34, 36, 14, 32, 22, 34, 24, 42, 20, 22, 28, 40, 46, 7, 15, 27, 33, 17, 35, 13, 15, 33, ...
[ "easy", "nonn", "base" ]
A076574
[ 1, 683, 557875, 1633383863, 9367236055495, 87201869442139040, 1.193374352393956e+21, 2.2530375500983987e+25, 5.6099632687370365e+29, 1.781052414078433e+34, 7.021974867134452e+38, 3.3658995289547656e+43 ]
[ "nonn" ]
A147751
[ 0, 0, 0, 2, 2, 2, 2, 4, 10, 10, 10, 16, 16, 16, 16, 24, 24, 52, 52, 54 ]
[ "nonn" ]
A004438
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 47, 48, 49, 52, 53, 56, 58, 59, 60, 61, 64, 6...
[ "nonn", "fini", "full" ]
A296794
[ 4, 1, 0, 7, 0, 3, 8, 0, 4, 9, 4, 4, 0, 1, 0, 2, 3, 8, 1, 2, 8, 3, 1, 2, 9, 9, 5, 1, 5, 8, 0, 8, 7, 2, 8, 1, 4, 3, 8, 1, 5, 8, 8, 9, 9, 2, 4, 5, 5, 3, 1, 9, 2, 0, 6, 5, 4, 3, 6, 2, 1, 7, 3, 4...
[ "nonn", "cons" ]
A050050
[ 1, 2, 3, 4, 6, 7, 9, 12, 16, 17, 19, 22, 26, 32, 39, 48, 60, 61, 63, 66, 70, 76, 83, 92, 104, 120, 137, 156, 178, 204, 236, 275, 323, 324, 326, 329, 333, 339, 346, 355, 367, 383, 400, 419, 441, 467, 499, 538 ]
[ "nonn" ]
A004493
[ 4, 5, 3, 7, 8, 6, 1, 2, 0, 13, 14, 12, 16, 17, 15, 10, 11, 9, 22, 23, 21, 25, 26, 24, 19, 20, 18, 31, 32, 30, 34, 35, 33, 28, 29, 27, 40, 41, 39, 43, 44, 42, 37, 38, 36, 49, 50, 48, 52, 53, 51, 46, 47, 45, 58...
[ "nonn", "easy", "base" ]
A232405
[ 96, 664, 4416, 44528, 370876, 3508240, 31802528, 296151320, 2734362948, 25388000332, 235309598120, 2183618526324, 20255876087096, 187949259401812, 1743794943568232, 16179886188718672, 150123298467390820 ]
[ "nonn" ]
A191423
[ 1, 0, 2, 3, 20, -30, 594, -840, 14384, -167832, 2300040, -17190360, 153272712, -2775904560, 51294972624, -651268374120, 7597950113280, -151775259773760, 3587640413505984, -63586583168595840, 972086975299451500 ]
[ "sign" ]
A096833
[ 4, 6, 11, 13, 24, 66, 68, 75, 167, 171, 172, 287, 310, 352, 384, 457, 564, 590, 616, 620, 643, 849, 1391, 1552, 1613, 1849, 2122, 2647, 2673, 4413 ]
[ "nonn", "more" ]
A158222
[ 198, 788, 1770, 3144, 4910, 7068, 9618, 12560, 15894, 19620, 23738, 28248, 33150, 38444, 44130, 50208, 56678, 63540, 70794, 78440, 86478, 94908, 103730, 112944, 122550, 132548, 142938, 153720, 164894, 176460, 188418, 200768, 213510, 226644 ]
[ "nonn", "easy" ]
A223258
[ 25, 845, 28885, 988625, 33841585, 1158447605, 39655444525, 1357467150905, 46468199390665, 1590678314378525, 54451378224988170, 1863954869994720500, 63806057268775910000, 2.1841799979841655e+21, 7.47678585357262e+22 ]
[ "nonn" ]
A224688
[ 5385, 2110, 2354, 2646, 2926, 3158, 3819, 4858, 6192, 7747, 9470, 11789, 15081, 19640, 25686, 33386, 43335, 56505, 74162, 97792, 129048, 170178, 224402, 296206, 391562, 518095, 685678, 907404, 1200852, 1589573, 2104743, 2787411, 3691719 ]
[ "nonn" ]
A070399
[ 1, 6, 5, 30, 25, 26, 1, 6, 5, 30, 25, 26, 1, 6, 5, 30, 25, 26, 1, 6, 5, 30, 25, 26, 1, 6, 5, 30, 25, 26, 1, 6, 5, 30, 25, 26, 1, 6, 5, 30, 25, 26, 1, 6, 5, 30, 25, 26, 1, 6, 5, 30, 25, 26, 1, 6, 5, 30, ...
[ "nonn", "easy" ]
A129359
[ 1, 3, 5, 6, 8, 9, 13, 15, 16, 19, 20, 23, 26, 27, 28, 29, 31, 33, 34, 35, 36, 38, 45, 48, 50, 51, 53, 55, 56, 59, 61, 63, 64, 69, 71, 73, 77, 78, 83, 84, 85, 86, 89, 91, 93, 94, 96, 100, 101, 103, 104, 108, 110, ...
[ "nonn" ]
A071209
[ 0, 1, 1, 0, 3, 8, 3, 0, 16, 81, 32, 18, 0, 125, 1024, 405, 240, 160, 0, 1296, 15625, 6144, 3645, 2560, 1875, 0, 16807, 279936, 109375, 64512, 45360, 35000, 27216, 0, 262144, 5764801, 2239488, 1312500, 917504, 708750, 580608, 470596, ...
[ "easy", "nonn", "tabl" ]
A089422
[ 1, 1, 2, 3, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38 ]
[ "nonn" ]
A091024
[ 0, 1, 2, 7, 19, 56, 160, 462, 1329, 3828, 11021, 31735, 91376, 263108, 757588, 2181389, 6281058, 18085587, 52075371, 149945056, 431749580, 1243173370, 3579575053, 10306975580, 29677753369, 85453685055, 246054079584 ]
[ "nonn" ]
A199137
[ 1, 1, 3, 9, 30, 97, 336, 1153, 4081, 14552, 52609, 191657, 704385, 2604476, 9687433, 36207241, 135920489, 512182805, 1936656361, 7345211322, 27935373368, 106509551719, 407015199144, 1558603221623, 5979839952471, 22983021033071, 88477003979994, 341120527468590 ]
[ "nonn" ]
A318828
[ 0, 1, 1, 3, 1, 5, 1, 7, 7, 9, 1, 11, 1, 13, 11, 15, 1, 17, 1, 19, 17, 21, 1, 23, 21, 25, 25, 25, 1, 29, 1, 31, 29, 33, 31, 35, 1, 37, 35, 39, 1, 41, 1, 43, 37, 45, 1, 47, 43, 49, 47, 49, 1, 53, 51, 55, 53...
[ "nonn" ]
A022869
[ 2, 2, 2, 3, 4, 5, 7, 10, 13, 18, 25, 35, 48, 67, 93, 129, 179, 249, 346, 481, 668, 928, 1290, 1792, 2491, 3462, 4811, 6686, 9292, 12913, 17946, 24940, 34660, 48169, 66942, 93032, 129291, 179681, 249711, 347034, 482289, 670259, 93148...
[ "nonn" ]
A156005
[ 7, 17, 19, 29, 31, 41, 43, 47, 61, 67, 71, 73, 83, 97, 103, 109, 131, 137, 139, 157, 179, 199, 223, 227, 229, 257, 263, 269, 293, 307, 311, 337, 353, 383, 389, 397, 421, 439, 449, 467, 491, 503, 571, 577, 587, 593, 599, 60...
[ "nonn", "easy" ]
A104205
[ 0, 1, 1, 2, 3, 5, 8, 4, 4, 12, 17, 20, 20, 37, 49, 53, 53, 102, 139, 159, 159, 298, 400, 453, 453, 853, 1151, 1310, 1310, 2461, 3314, 3767, 3767, 7081, 9542, 10852, 10852, 20394, 27475, 31242, 31242, 58717, 79111, 89963, 89963, ...
[ "nonn" ]
A006759
[ 0, 0, 0, 3, 17, 131, 915, 6553, 47026, 341888, 2505449, 18534827, 138224058, 1038594326, 7856087894, 59782042225, 457359506070, 3515816578512, 27143401299351, 210372490707568 ]
[ "nonn", "more" ]
A367076
[ 0, 1, 0, 3, 4, 3, 0, 6, 10, 12, 12, 12, 10, 6, 0, 10, 18, 24, 28, 32, 34, 34, 32, 34, 34, 32, 28, 24, 18, 10, 0, 15, 28, 39, 48, 57, 64, 69, 72, 79, 84, 87, 88, 89, 88, 85, 80, 85, 88, 89, 88, 87, 84, 79, 72,...
[ "nonn", "easy", "look", "tabf" ]
A280090
[ 2, 200, 1, 300, 10, 400, 2, 200, 1, 1, 30, 5, 10, 40, 1, 400, 5, 300, 40, 10, 40, 6, 1, 400, 5, 1, 200, 90 ]
[ "dead" ]
A092967
[ 2, 3, 7, 7, 31, 31, 211, 211, 211, 211, 2311, 2311, 6007, 6007, 6007, 6007, 102103, 102103, 3233231, 3233231, 3233231, 3233231, 17160991 ]
[ "nonn" ]