id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A258657
[ 1, 1, 3, 63, 1449, 79569, 4933467, 538446447, 64308790161, 11702872619361, 2287996769790963, 625623383080392600, 181555646645074400000, 6.963051738093221e+22, 2.80965716831409e+25, 1.4391876463069616e+28, 7.705942233644896e+30, 5.082509306223149e+33 ]
[ "nonn" ]
A187761
[ 1, 1, 2, 6, 23, 106, 568, 3459, 23544, 176850, 1451253, 12904312, 123489888, 1264591561, 13790277294, 159466823794, 1948259002647, 25066729706582, 338670605492700, 4792623436607059, 70873649458154500, 1092969062435462300, 17543703470388926000, 292600906102204630000 ]
[ "nonn", "nice", "changed" ]
A062959
[ 1, 3, 7, 49, 121, 519841, 5041, 120961, 725761, 13168196697601, 39916801, 458885067042124800, 6227020801, 7.600054456726354e+21, 1.7100122527268148e+24, 83691159552001, 355687428096001, 8.198077813559458e+31, 121645100408832000 ]
[ "nonn" ]
A000264
[ 1, 1, 3, 14, 80, 518, 3647, 27274, 213480, 1731652, 14455408, 123552488, 1077096124, 9548805240, 85884971043, 782242251522, 7203683481720, 66989439309452, 628399635777936, 5940930064989720, 56562734108608536 ]
[ "nonn", "nice" ]
A211040
[ 1, 4, 40, 928, 45128, 4945168, 1207742160, 655725571768, 791701825710768, 2127149017683661000, 1.2717092443922121e+22, 1.6915747388057577e+26, 5.00630238893952e+30 ]
[ "nonn" ]
A326121
[ 0, 1, 1, 5, 1, 18, 1, 33, 28, 58, 1, 246, 1, 178, 369, 577, 1, 1539, 1, 2774, 2531, 2170, 1, 16706, 3126, 8362, 20413, 35366, 1, 116444, 1, 135425, 178479, 131362, 94933, 1110999, 1, 524650, 1596521, 2530946, 1, 7280892, 1, 840373...
[ "nonn" ]
A116125
[ 7, 97, 205, 300, 477, 732, 997, 1920, 3157, 9997, 52896, 99997, 120085, 427020, 999997, 8264460, 9999997, 88581312, 99999997, 112000885, 112917765, 143075580, 152863360, 193537077, 233788192, 266755221, 313680096 ]
[ "nonn", "base" ]
A166200
[ 1, 6, 2, 5, 39, 122, 604, 8064, 40848, 495985, 16474555, 153952919, 4118194905, 283350411160, 6779925069586, 398461742491565, 59492448257857640 ]
[ "nonn" ]
A032388
[ 3, 7, 19, 23, 95, 287, 483, 559, 655, 667, 1639, 9399, 39639, 63883, 71575, 164319, 401947, 614995, 2762047, 5422903 ]
[ "nonn" ]
A060230
[ 419, 1049, 2309, 2729, 3359, 5879, 6089, 6299, 7349, 7559, 8819, 9239, 10499, 10709, 11549, 11969, 15329, 18059, 21839, 25409, 26249, 26879, 28349, 29399, 30869, 31079, 32969, 33179, 33599, 33809, 34649, 35279, 37589, 40529, 42839 ]
[ "nonn" ]
A300566
[ 8748, 10368, 342732 ]
[ "nonn", "more", "bref", "hard" ]
A091958
[ 1, 1, 2, 4, 1, 9, 5, 21, 21, 51, 78, 3, 127, 274, 28, 323, 927, 180, 835, 3061, 954, 12, 2188, 9933, 4510, 165, 5798, 31824, 19734, 1430, 15511, 100972, 81684, 9790, 55, 41835, 317942, 324246, 57876, 1001, 113634, 995088, 1245762, ...
[ "nonn", "tabf" ]
A064424
[ 1, 2, 4, 6, 9, 12, 15, 18, 21, 24, 33, 35, 39, 51, 57, 69, 70, 87, 93, 111, 123, 129, 141, 159, 177, 183, 201, 213, 219, 237, 249, 267, 291, 303, 309, 321, 327, 339, 381, 393, 411, 417, 447, 453, 471, 489, 501, 519, 537,...
[ "nonn", "easy" ]
A060759
[ 1, 7, 2401, 40353607, 33232930569601, 1.341068619663965e+21, 2.6517308458596536e+30, 2.5692357752105887e+41 ]
[ "nonn", "easy" ]
A347863
[ 7, 21, 93, 357, 381, 681, 1541, 7181, 24573, 36893, 192061, 388669, 393213, 1505533, 1572861, 10678781, 24736253 ]
[ "nonn", "more" ]
A057113
[ 0, 1, 4, 5, 3, 2, 12, 13, 16, 22, 19, 18, 20, 10, 7, 6, 8, 14, 15, 9, 11, 21, 23, 17, 77, 76, 73, 72, 74, 75, 85, 84, 86, 80, 78, 79, 82, 92, 90, 91, 94, 88, 89, 95, 93, 83, 81, 87, 63, 62, 60, 61, 64, 65, 71...
[ "nonn", "fini", "full" ]
A335191
[ 1, 2, 1, 3, 3, 2, 1, 1, 1, 1, 1, 2, 1, 5, 2, 5, 1, 1, 2, 1, 1, 1, 2, 2, 1, 1, 2, 1, 7, 5, 3, 1, 5, 1, 1, 5, 3, 1, 2, 1, 1, 1, 1, 1, 2, 3, 1, 1, 5, 1, 4, 1, 1, 1, 8, 5, 1, 3, 2, 1, 1, 1, 3, 6...
[ "nonn" ]
A351097
[ 0, 0, 0, 0, 0, 1, 0, -1, -1, 0, 0, 0, 0, 0, 0, -3, 0, 1, 0, 2, 1, 1, 0, -1, 0, 1, 1, -1, 0, 0, 0, -2, 1, 2, 1, 0, 0, 2, 1, -1, 0, 1, 0, 1, -1, 3, 0, -1, 0, 0, 2, 2, 0, 0, 1, 0, 2, 0, 0, 1, 0, 0,...
[ "sign" ]
A212818
[ 1, 5, 49, 493, 4953, 49856, 499735, 4999579, 49998058, 499987392, 4999941987, 49999828888, 499999738687, 4999999516711 ]
[ "nonn" ]
A041860
[ 21, 64, 85, 489, 1552, 16009, 49579, 263904, 313483, 1204353, 50896309, 153893280, 204789589, 1177841225, 3738313264, 38560973865, 119421234859, 635667148160, 755088383019, 2900932297217, 122594244866133, 370683666895616, 493277911761749, 2837073225704361 ]
[ "nonn", "cofr", "frac", "easy", "less" ]
A360141
[ 0, 1, 1, 2, 2, 3, 4, 5, 5, 6, 9, 10, 10, 11, 12, 19, 20, 21, 21, 21, 22, 25, 38, 41, 42, 42, 43, 44, 51, 76, 83, 84, 85, 85, 85, 86, 89, 102, 153, 166, 169, 170, 170, 170, 171, 172, 179, 204, 307, 332, 339, 340, ...
[ "nonn", "base" ]
A233108
[ 6, 313, 24912, 2154065, 189286871, 16683923848, 1471365099497, 129774107522700, 11446271884607256, 1009582054691903400, 89047037607095260000, 7.854117302435219e+21, 6.927480314612065e+23 ]
[ "nonn" ]
A081390
[ 6, 10, 12, 15, 16, 20, 21, 22, 27, 28, 29, 30, 32, 33, 34, 36, 37, 39, 53, 54, 55, 56, 57, 58, 65, 67, 79, 80, 109, 110, 129, 135, 159, 161, 170, 171, 255, 783, 784, 785, 786, 902 ]
[ "nonn", "more" ]
A358523
[ 1, 2, 4, 3, 8, 7, 6, 9, 5, 16, 15, 14, 25, 13, 12, 11, 18, 129, 65, 10, 33, 257, 17, 32, 31, 30, 57, 29, 28, 27, 50, 385, 193, 26, 97, 769, 49, 24, 23, 22, 41, 21, 36, 35, 258, 32769, 16385, 130, 8193, 16777217, 4097...
[ "nonn" ]
A009704
[ 0, 1, 2, 7, 36, 277, 2422, 24939, 292488, 3893577, 57581162, 937884143, 16663799724, 320906530973, 6656135961438, 147944310556051, 3507720648511504, 88369892016844560, 2357319985504634000 ]
[ "nonn", "easy" ]
A005556
[ 1, 4, 5, 7, 8, 11 ]
[ "nonn", "fini", "full" ]
A059873
[ 1, 3, 5, 13, 21, 46, 78, 175, 303, 639, 1143, 2539, 4542, 9214, 17406, 36735, 69374, 139254, 270327, 556031, 1079294, 2162678, 4259819, 8642558, 17022974, 34078590, 67632893, 136249338, 270401534, 541064701, 1077935867, 2162163707 ]
[ "nonn" ]
A199668
[ 3, 5, 3, 9, 0, 4, 4, 5, 9, 0, 7, 0, 7, 6, 7, 0, 0, 9, 6, 9, 0, 0, 0, 7, 1, 0, 2, 7, 2, 4, 6, 6, 4, 6, 4, 6, 9, 9, 1, 2, 0, 3, 8, 6, 5, 8, 0, 0, 6, 9, 0, 2, 6, 6, 0, 2, 1, 1, 9, 5, 5, 6, 6, 0...
[ "nonn", "cons" ]
A099372
[ 0, 1, 81, 6724, 558009, 46308025, 3843008064, 318923361289, 26466795978921, 2196425142889156, 182276820063821020, 15126779640154255000, 1.2553404333127395e+21, 1.0417812918531721e+23, 8.645529381948016e+24, 7.174747605725e+26, 5.954175959813556e+28 ]
[ "nonn", "easy" ]
A020819
[ 1, 2, 7, 0, 0, 0, 1, 2, 7, 0, 0, 0, 1, 9, 0, 5, 0, 0, 3, 1, 7, 5, 0, 0, 5, 5, 5, 6, 2, 6, 0, 0, 0, 1, 2, 6, 8, 3, 3, 5, 6, 5, 9, 0, 5, 1, 9, 3, 8, 8, 4, 7, 3, 8, 6, 2, 2, 5, 6, 1, 9, 7, 6, 6...
[ "nonn", "cons", "easy" ]
A061890
[ 100, 25633969, 212372329, 292341604, 3672424151449, 2.1970473216787518e+23 ]
[ "nonn", "more" ]
A111355
[ 2, 4, 222, 154, 754, 204, 14, 246, 1300, 3642 ]
[ "nonn" ]
A282924
[ 1, 25, 350, 3575, 29575, 209405, 1312675, 7452201, 38939275, 189537775, 867436570, 3760131375, 15529994130, 61413915500, 233488417752, 856388420815, 3039281123900, 10463551169370, 35024068485525, 114205431037285, 363408170015065, 1130218949978428, 3440267279234290, 1026...
[ "nonn" ]
A290364
[ 0, 1, 42, 817, 8429, 55627, 268272, 1030101, 3331117, 9425128, 23970089, 55880968, 121188860, 247272012, 478904297, 886654486, 1578265414, 2713745819, 4525019252, 7341094011, 11619845543, 17987638185, 27288156478, 40641967587, 59518495595, 85822255610 ]
[ "nonn", "easy" ]
A257424
[ 514920, 1246585, 5347670, 19771628, 39029574, 115919394, 317271378, 756210536, 2131836574, 5828147664, 15609807360, 43074413716, 116962517460, 315815849814, 863675994118, 2358777950090, 6431658379770, 17567133145546, 47951743101422 ]
[ "nonn" ]
A117774
[ 1, 2, 3, 5, 8, 21, 144, 2584, 14930352, 86267571272, 498454011879264, 160500643816367100, 1.1405930102594397e+23, 5.358359254990966e+24, 5.555654042242927e+29, 1.2261325953941882e+33, 1.8547707689471987e+37 ]
[ "base", "nonn" ]
A168206
[ 0, 11, 5, 16, 10, 21, 15, 26, 20, 31, 25, 36, 30, 41, 35, 46, 40, 51, 45, 56, 50, 61, 55, 66, 60, 71, 65, 76, 70, 81, 75, 86, 80, 91, 85, 96, 90, 101, 95, 106, 100, 111, 105, 116, 110, 121, 115, 126, 120, 131, 125, ...
[ "nonn", "easy" ]
A363642
[ 1, 4, 7, 17, 16, 55, 29, 129, 100, 311, 67, 1135, 92, 1919, 1486, 5409, 154, 17038, 191, 33491, 20938, 67871, 277, 262861, 9701, 373127, 296110, 978727, 436, 3134821, 497, 5051969, 3898522, 10027655, 474146, 39352069, 704, 49808159, 4836292...
[ "nonn" ]
A038453
[ 11111111111, 101111111111, 110111111111, 111011111111, 111101111111, 111110111111, 111111011111, 111111101111, 111111110111, 111111111011, 111111111101, 111111111110, 1001111111111, 1010111111111, 1011011111111, 1011101111111, 1011110111111, 1011111011111, 1011111101111 ]
[ "nonn", "easy" ]
A183626
[ 115, 189, 355, 741, 1675, 4029, 10195, 26901, 73435, 205869, 588835, 1709061, 5012395, 14807709, 43964275, 130975221, 391090555, 1169601549, 3501464515, 10489713381, 31439779915, 94260619389, 282664417555, 847758371541 ]
[ "nonn" ]
A164683
[ 1, 8, 8, 64, 64, 512, 512, 4096, 4096, 32768, 32768, 262144, 262144, 2097152, 2097152, 16777216, 16777216, 134217728, 134217728, 1073741824, 1073741824, 8589934592, 8589934592, 68719476736, 68719476736, 549755813888 ]
[ "nonn", "easy" ]
A303447
[ 9890881, 23456248059221, 96076792050570580 ]
[ "bref", "hard", "more", "nonn" ]
A331558
[ 0, 1, 2, 3, 4, 20, 216, 1862, 13840, 104904, 949200, 10517232, 130307904, 1694503824, 23063845728, 335427395760, 5269616092416, 88835797577472, 1587229554415104, 29838489410093184, 589394278657267200, 12235109311726688000, 266570965998899070000 ]
[ "nonn" ]
A306170
[ 13, 105, 123, 544, 1956, 5277, 16195, 52752, 158458, 503426, 1626380, 5018948, 15811628, 50435662, 157657009, 496317068, 1574666421, 4950381192, 15591794060, 49320992460, 155399103321, 489755624503, 1547029672517, 4878616148585 ]
[ "nonn" ]
A296891
[ 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, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 5...
[ "nonn", "base", "easy" ]
A033262
[ 1, 27, 154, 1601, 2135, 4132, 7166, 8391, 10970, 34639, 748645, 1005174 ]
[ "nonn", "more" ]
A237856
[ 21, 325, 3373, 31651, 315896, 3255233, 33328972, 338653847, 3440498469, 35005538562, 356277110111, 3625220129423, 36883657486461, 375271668222454, 3818293078009309, 38850130701960930, 395287712822929200 ]
[ "nonn" ]
A116532
[ 0, 0, 3, 285, 50820, 23551920, 31898503077, 134251404794199 ]
[ "more", "nonn" ]
A227723
[ 0, 1, 3, 6, 7, 15, 22, 23, 24, 25, 27, 30, 31, 60, 61, 63, 105, 107, 111, 126, 127, 255, 278, 279, 280, 281, 282, 283, 286, 287, 300, 301, 303, 316, 317, 318, 319, 360, 361, 362, 363, 366, 367, 382, 383, 384, 385, 386, 3...
[ "nonn" ]
A371442
[ 0, 1, 1, 1, 2, 3, 2, 3, 2, 2, 3, 3, 2, 2, 3, 3, 4, 5, 4, 5, 6, 7, 6, 7, 4, 5, 4, 5, 6, 7, 6, 7, 4, 4, 5, 5, 4, 4, 5, 5, 6, 6, 7, 7, 6, 6, 7, 7, 4, 4, 5, 5, 4, 4, 5, 5, 6, 6, 7, 7, 6, 6, 7, 7...
[ "nonn", "base", "easy" ]
A294177
[ 3, 2, 1, 4, 3, 1, 5, 3, 2, 5, 4, 1, 6, 5, 1, 7, 4, 3, 7, 5, 2, 7, 6, 1, 8, 2, 1, 8, 5, 3, 8, 7, 1, 9, 3, 2, 9, 5, 4, 9, 7, 2, 9, 7, 6, 9, 8, 1, 9, 8, 6, 10, 7, 3, 10, 9, 1, 11, 6, 5, 11, 7, 4,...
[ "nonn", "tabf", "look" ]
A308590
[ 0, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 7, 6, 7, 6, 7, 8, 9, 8, 9, 10, 11, 10, 9, 8, 7, 8, 7, 8, 9, 10, 9, 10, 11, 12, 11, 12, 13, 14, 13, 14, 15, 16, 15, 16, 17, 18, 17, 16, 15, 14, 13, 12, 11, 12, 11, ...
[ "nonn" ]
A090389
[ 2, 11, 29, 47, 83, 101, 137, 173, 191, 227, 263, 281, 317, 353, 389, 443, 461, 479, 569, 587, 641, 659, 677, 821, 839, 857, 911, 929, 947, 983, 1019, 1091, 1109, 1163, 1181, 1217, 1289 ]
[ "dead" ]
A289239
[ 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1...
[ "nonn", "easy" ]
A276304
[ 365, 710, 14693, 203933, 3861469, 61239977, 1073114625, 17768699385, 303744206293, 5099725153529, 86493302028957, 1458615553542913, 24677069062558770, 416736142368242200, 7044833158816604000 ]
[ "nonn" ]
A109927
[ 3, 5, 11, 23, 37, 83, 157, 179, 359, 661, 719, 877, 997, 1019, 1237, 1439, 1657, 2039, 2063, 2137, 2459, 2557, 2819, 2903, 2963, 3023, 3061, 3623, 3779, 3803, 3863, 4177, 4261, 4357, 4621, 4919, 5399, 5581, 5639, 6037, 6121, 6217, 6...
[ "easy", "nonn" ]
A086303
[ 2, 4, 8, 14, 16, 22, 26, 28, 32, 38, 44, 46, 52, 56, 58, 64, 68, 74, 82, 86, 88, 92, 94, 98, 112, 116, 122, 124, 134, 136, 142, 148, 152, 158, 164, 166, 176, 178, 182, 184, 196, 208, 212, 214, 218, 224, 226, 236, 242, ...
[ "easy", "nonn" ]
A088032
[ 3, 3, 9, 3, 33, 31, 129, 31, 513, 511, 2049, 1023, 8193, 8191, 32769, 4095, 131073, 131071, 524289, 262143, 2097153, 2097151, 8388609, 2097151 ]
[ "more", "nonn" ]
A330619
[ 1, 0, 0, 0, 2, 2, 0, 0, 4, 8, 4, 0, 8, 24, 24, 8, 32, 64, 96, 64, 192, 192, 320, 320, 1024, 768, 1024, 1280, 4608, 3584, 3584, 4608, 18432, 16384, 14336, 16384, 69632, 69632, 61440, 61440, 262144, 278528, 262144, 245760, 1015808...
[ "nonn", "tabf", "easy" ]
A125549
[ 209, 510509, 9699689, 223092869, 6469693229, 200560490129, 7420738134809, 13082761331670028, 614889782588491400, 32589158477190046000, 1.9227603501542128e+21, 1.1728838135940697e+23 ]
[ "nonn" ]
A372887
[ 0, 0, 1, 1, 3, 3, 6, 8, 12, 14, 21, 29, 36, 48, 56, 74, 94, 123, 144, 195, 235, 301, 356, 456, 538, 679, 803, 997, 1189, 1467, 1716, 2103, 2488, 2968, 3517, 4185, 4907, 5834, 6850, 8032, 9459, 11073, 12933, 15130, 17652, 20480...
[ "nonn" ]
A217463
[ 0, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 2, 0, 0, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 2, 3, 2, 0, 1, 3, 2, 2, 0, 2, 3, 1, 1, 1, 2, 0, 3, 2, 1, 0, 0, 2, 1, 2, 2, 4, 2, 2, 0, 1, 3, 1, 1, 0, 2, 0, 1, 3...
[ "nonn" ]
A348011
[ 1, 4, 10, 20, 28, 40, 54, 88, 102, 112, 130, 200, 180, 216, 280, 368, 304, 408, 378, 560, 540, 520, 550, 880, 740, 720, 954, 1080, 868, 1120, 990, 1504, 1300, 1216, 1512, 2040, 1404, 1512, 1800, 2464, 1720, 2160, 1890, 2600, 285...
[ "nonn", "mult" ]
A114186
[ 0, 1, 3, 5, 9, 11, 17, 19, 27, 36, 46, 48, 60, 62, 76, 91, 107, 109, 127, 129, 149, 170, 192, 194, 218, 243, 269, 296, 324, 326, 356, 358, 390, 423, 457, 492, 528, 530, 568, 607, 647, 649, 691, 693, 737, 782, 828, 830, 8...
[ "easy", "nonn" ]
A227037
[ 1, 2, 4, 12, 54, 312, 2136, 16800, 149160, 1475280, 16081920, 191530080, 2473999920, 34446303360, 514240110720, 8193624284160, 138780284791680, 2489891543596800, 47169750454848000, 940914453958617600, 19712190644360122000 ]
[ "nonn" ]
A297489
[ 1, 3, 94, 7148, 2699317, 3897125868, 25675258831176 ]
[ "nonn", "more" ]
A127267
[ 2, 1, 2, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 2, 3, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3...
[ "nonn" ]
A044726
[ 13, 113, 139, 213, 313, 413, 513, 613, 713, 813, 913, 1013, 1113, 1139, 1213, 1399, 1413, 1513, 1613, 1713, 1813, 1913, 2013, 2113, 2139, 2213, 2313, 2413, 2513, 2613, 2713, 2813, 2913, 3013, 3113, 3139, 3213, 3313, 3413 ]
[ "nonn", "base" ]
A054579
[ 0, 2, 6, 12, 3, 13, 8, 5, 4, 5, 8, 13, 3, 12, 6, 2, 0, 0, 2, 6, 12, 3, 13, 8, 5, 4, 5, 8, 13, 3, 12, 6, 2, 0, 0, 2, 6, 12, 3, 13, 8, 5, 4, 5, 8, 13, 3, 12, 6, 2, 0, 0, 2, 6, 12, 3, 13, 8, 5, 4, 5,...
[ "nonn", "easy" ]
A376405
[ 176, 584, 2068, 9232, 38952, 135296, 567096, 2444568, 10136288, 34920688, 144732808, 625792608, 2598216176, 8989149792, 37119010736, 160422522664, 665656629200, 2297815400576, 9505629937992, 41066855413976, 169932530966160, 589165636912400, 2439104800321640, 10514745879...
[ "nonn", "base" ]
A326215
[ 0, 2, 0, 4, 20 ]
[ "nonn", "more" ]
A338221
[ 1, 2, 4, 3, 6, 5, 10, 7, 8, 16, 12, 20, 40, 24, 9, 18, 36, 30, 15, 45, 90, 50, 14, 28, 32, 64, 48, 60, 80, 120, 240, 160, 72, 27, 54, 108, 216, 144, 150, 25, 75, 180, 360, 270, 100, 42, 21, 63, 126, 252, 84, 96, ...
[ "nonn", "look" ]
A087920
[ 5, 10, 12, 20, 21, 26, 28, 31, 32, 33, 35, 37, 38, 41, 43, 44, 45, 49, 52, 53, 57, 58, 60, 64, 69, 70, 72, 73, 75, 80, 81, 83, 84, 85, 87, 89, 93, 96, 98, 104, 108, 109, 113, 116, 118, 120, 124, 126, 130, 134, 140, ...
[ "nonn" ]
A347186
[ 1, 4, 6, 16, 12, 37, 20, 64, 36, 90, 42, 161, 56, 156, 107, 256, 90, 334, 110, 408, 202, 342, 156, 697, 207, 462, 312, 785, 240, 976, 272, 1024, 446, 756, 441, 1586, 380, 930, 604, 1736, 462, 1841, 506, 1806, 1101, 1332, 600...
[ "nonn" ]
A160236
[ 1, 10, -1582, -49460, 7488172, 407648600, -58899040520, -4702980076400, 646447502318480, 69747774931223200, -9088444540784919000, -1.2640420197510233e+21, 1.5551398069609233e+23, 2.706856393361558e+25, -3.129783062564599e+27 ]
[ "sign", "frac" ]
A013727
[ 22, 10648, 5153632, 2494357888, 1207269217792, 584318301411328, 282810057883082750, 136880068015412050000, 6.624995291945943e+22, 3.2064977213018367e+25, 1.551944897110089e+28, 7.51141330201283e+30, 3.63552403817421e+33 ]
[ "nonn", "easy" ]
A061880
[ 209, 308, 319, 407, 418, 429, 506, 517, 528, 539, 605, 616, 627, 638, 649, 704, 715, 726, 737, 748, 759, 803, 814, 825, 836, 847, 858, 869, 902, 913, 924, 935, 946, 957, 968, 979, 2090, 3080, 3091, 3190, 4070, 4081, 4092, 4180, ...
[ "base", "nonn", "easy" ]
A003205
[ 1, 22, 234, 2348, 22726, 214642, 1993002, 18266276, 165688208 ]
[ "nonn", "more" ]
A326109
[ 1, 111, 113, 1011, 131, 1101, 133, 117, 119, 171, 139, 1110, 112, 114, 116, 121, 1112, 118, 122, 211, 1113, 137, 1114, 212, 124, 141, 311, 1115, 115, 151, 1116, 123, 313, 1117, 1118, 221, 1119, 331, 1121, 1131, 333, 191, 1141, 177...
[ "base", "nonn" ]
A165674
[ 1, 3, 1, 11, 5, 1, 50, 26, 7, 1, 274, 154, 47, 9, 1, 1764, 1044, 342, 74, 11, 1, 13068, 8028, 2754, 638, 107, 13, 1, 109584, 69264, 24552, 5944, 1066, 146, 15, 1, 1026576, 663696, 241128, 60216, 11274, 1650, 191, 17, 1 ]
[ "easy", "nonn", "tabl" ]
A225420
[ 1, 14, 33, 32, 91, 141, 213, 212, 213, 3090, 3093, 3090, 3090, 3090, 38405, 38404, 3090, 3090, 38401, 38400, 294581, 294581, 39569681, 5571498, 68780189, 294577, 68780189, 53758490, 92636277, 456742389, 1176172581, 880346227, 3953000577, 13821836609,...
[ "nonn", "hard", "more" ]
A356395
[ 0, 1, 3, 6, 8, 11, 14, 21, 24, 35, 40, 50, 55, 58, 66, 82, 90, 108, 118, 126, 144, 147, 176, 189, 205, 234, 247, 273, 286, 296, 325, 338, 364, 377, 380, 401, 443, 464, 511, 527, 548, 590, 611, 658, 684, 705, 752, 762, 78...
[ "nonn", "base" ]
A271053
[ 7, -4, 40, -31, 103, -103, 207, -207, 343, -343, 511, -511, 711, -711, 943, -943, 1207, -1207, 1503, -1503, 1831, -1831, 2191, -2191, 2583, -2583, 3007, -3007, 3463, -3463, 3951, -3951, 4471, -4471, 5023, -5023, 5607, -5607, 6223, -6223, ...
[ "sign", "easy" ]
A114119
[ 1, 3, 5, 6, 8, 9, 11, 12, 14, 15, 17, 18, 20, 21, 23, 24, 26, 27, 29, 30, 32, 33, 35, 36, 38, 39, 41, 42, 44, 45, 47, 48, 50, 51, 53, 54, 56, 57, 59, 60, 62, 63, 65, 66, 68, 69, 71, 72, 74, 75, 77, 78, 80, 81, ...
[ "easy", "nonn" ]
A058018
[ 1, 1, 1, 1, 1, 1, 13, 1, 13, 31, 23, 19, 1, 41, 1, 31, 43, 1, 41, 53, 79, 59, 1, 59, 61, 113, 97, 179, 73, 73, 97, 103, 101, 109, 1, 229, 109, 139, 113, 227, 131, 191, 163, 1, 199, 151, 139, 1, 223, 229, 367, 239, ...
[ "nonn" ]
A121980
[ 1, 3, 4, 8, 13, 24, 27, 28, 32, 49, 64, 81, 98, 104, 108, 125, 147, 168, 181, 189, 192, 216, 224, 228, 256, 312, 343, 351, 361, 375, 388, 392, 500, 507, 512, 525, 549, 588, 648, 671, 676, 729, 756, 784, 832, 847, 864, 1000...
[ "nonn" ]
A099047
[ 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 26, 27, 29, 31, 33, 34, 35, 37, 39, 41, 43, 45, 47, 49, 50, 51, 53, 55, 56, 57, 59, 61, 63, 64, 65, 67, 69, 71, 73, 75, 76, 77, 79, 81, 83, 85, 86, 87, 89, 91, 92, 93, 9...
[ "nonn" ]
A154952
[ 1, 5, 6, 7, 12, 9, 13, 17, 22, 20, 26, 56, 50, 46, 74, 106, 76, 152, 116, 242, 206, 284, 623, 1056, 1032, 1582, 1586, 1616, 1892, 1676, 4286, 5484, 4946, 7016, 5366, 11262, 18776, 17486, 19688, 18192, 21018, 60662, 51476, 56546, ...
[ "nonn" ]
A165430
[ 1, 1, 2, 1, 1, 3, 1, 1, 1, 4, 1, 1, 1, 1, 5, 1, 2, 3, 1, 1, 6, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 9, 1, 2, 1, 1, 5, 2, 1, 1, 1, 10, 1, 1, 1, 1, 1, 1, 1, 1, ...
[ "easy", "nonn", "tabl" ]
A010915
[ 6, 16, 43, 116, 313, 845, 2281, 6157, 16619, 44858, 121081, 326823, 882164, 2381146, 6427213, 17348397, 46826965, 126395808, 341168818, 920886256, 2485665312, 6709332453, 18109896673, 48882412640, 131943892815, 356144263570, 961308127021, 2594772426806 ]
[ "nonn" ]
A200001
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 18...
[ "nonn", "base", "fini", "full" ]
A318273
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 22, 123, 137, 139, 168, 179, 188, 233, 267, 299, 346, 389, 899, 1124, 1157, 1347, 1355, 1469, 1779, 1788, 2236, 2346, 2348, 2778, 3335, 3779, 11126, 11133, 11148, 11177, 11222, 11238, 11279, 11339, ...
[ "nonn", "base" ]
A380085
[ 1, 2, 3, 1, 5, 6, 7, 1, 9, 10, 11, 3, 13, 14, 15, 1, 17, 18, 19, 5, 21, 22, 23, 3, 25, 26, 1, 7, 29, 30, 31, 1, 33, 34, 35, 9, 37, 38, 39, 5, 41, 42, 43, 11, 45, 46, 47, 3, 49, 50, 51, 13, 53, 2, 55, 7, 5...
[ "nonn", "easy", "mult" ]
A143661
[ 0, 0, 1, 187, 3721, 41551, 321809, 1792727, 7284325, 21539704, 45979736, 69895468, 74365276, 54266201, 26605433, 8612476, 1824397, 252764, 22673, 1202, 22 ]
[ "fini", "full", "nonn", "changed" ]
A084794
[ 1, 1, 2, 7, 1, 1, 2, 3, 14, 1, 1, 2, 4, 1, 1, 1, 2, 7, 1, 1, 2, 3, 15, 1, 1, 2, 4, 1, 1, 1, 2, 7, 1, 1, 2, 3, 16, 1, 1, 2, 4, 1, 1, 1, 2, 7, 1, 1, 2, 3, 18, 1, 1, 2, 5, 1, 1, 1, 2, 8, 1, 1, 2,...
[ "nonn" ]
A027743
[ 1, 2, 8, 36, 160, 1120, 6048, 37856, 192000, 1376352, 8512000, 59865432, 261273600, 2484333600, 15433134080, 96689376000, 520863744000, 4561057021824, 27124330415616, 199503336577688, 958110720000000, 8107845416745984, 56613417213661440, 388083262835207940 ]
[ "nonn" ]
A339579
[ 4, 3, 5, 2, 0, 4, 0, 1, 0, 0, 0, 3, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 2, 0, 0, 0, 0, 0, 2, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 3, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0...
[ "nonn" ]
A154478
[ 1, 1, 4, 6, 1, 2, 8, 0, 3, 5, 6, 7, 8, 2, 3, 8, 0, 2, 5, 9, 2, 5, 9, 5, 5, 1, 5, 3, 3, 1, 7, 1, 2, 9, 2, 2, 0, 2, 5, 1, 7, 6, 2, 2, 7, 7, 7, 8, 6, 0, 7, 3, 9, 4, 7, 8, 1, 4, 0, 6, 2, 4, 1, 4...
[ "nonn", "cons" ]
A184833
[ 0, 0, 0, 4, 5, 4, 9, 9, 12, 13, 13, 15, 17, 20, 21, 20, 23, 28, 29, 29, 32, 33, 33, 36, 37, 37, 40, 41, 40, 45, 43, 49, 51, 53, 56, 57, 57, 60, 59, 64, 65, 65, 68, 69, 69, 72, 71, 76, 77, 76, 81, 81, 84, 85, ...
[ "nonn", "easy" ]
A100133
[ 1, 2, 4, 8, 19, 50, 136, 368, 985, 2618, 6940, 18392, 48763, 129338, 343120, 910304, 2415025, 6406898, 16996852, 45090728, 119620579, 317340098, 841868632, 2233386320, 5924932489, 15718204970, 41698695820, 110622122360 ]
[ "easy", "nonn" ]