id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A180694
[ 0, 3, 5, 6, 15, 7, 25, 8, 26, 9, 18, 36, 1, 19, 28, 2, 11, 55, 20, 29, 3, 47, 12, 21, 65, 30, 39, 4, 48, 13, 57, 22, 66, 31, 75, 40, 5, 49, 14, 58, 23, 181, 67, 32, 76, 41, 120, 6, 50, 208, 15, 59, 217, 24, 68, 147, 33, 270, 77, 314, 42, 7, 165, 51, 209, 16, 174, 60, 218, 25, 183 ]
[ "base", "nonn" ]
A344665
[ 0, 2, 48, 124416, 9537454080, 243184270049280000, 1.3903966585301149e+27, 4.3528620274906484e+39, 1.1228731998377004e+55, 3.665884339802255e+73 ]
[ "nonn" ]
A168328
[ 0, 6, 6, 12, 12, 18, 18, 24, 24, 30, 30, 36, 36, 42, 42, 48, 48, 54, 54, 60, 60, 66, 66, 72, 72, 78, 78, 84, 84, 90, 90, 96, 96, 102, 102, 108, 108, 114, 114, 120, 120, 126, 126, 132, 132, 138, 138, 144, 144, 150, 150, 156, 156, 162, 162, 168, 168, 174, 174, 180, 180 ]
[ "nonn", "easy", "less" ]
A272934
[ 1, 2, 6, 18, 42, 126, 162, 378, 486, 882, 1458, 2646, 3078, 3942, 5418, 9198, 11826, 14406, 16758, 18522, 24966, 26406, 37338, 39366, 42462, 71442, 77658, 95922, 99078, 113778, 117306, 143262, 174762, 175446, 184842, 265482, 304038, 308826, 318402, 351918 ]
[ "nonn" ]
A090991
[ 6, 10, 16, 26, 42, 68, 110, 178, 288, 466, 754, 1220, 1974, 3194, 5168, 8362, 13530, 21892, 35422, 57314, 92736, 150050, 242786, 392836, 635622, 1028458, 1664080, 2692538, 4356618, 7049156, 11405774, 18454930, 29860704, 48315634, 78176338, 126491972 ]
[ "nonn", "easy" ]
A330138
[ 3, 4, 5, 15, 8, 17, 5, 12, 13, 35, 12, 37, 21, 20, 29, 7, 24, 25, 63, 16, 65, 45, 28, 53, 27, 36, 45, 9, 40, 41, 99, 20, 101, 77, 36, 85, 55, 48, 73, 33, 56, 65, 11, 60, 61, 143, 24, 145, 117, 44, 125, 91, 60, 109, 65, 72, 97, 39, 80, 89, 13, 84, 85 ]
[ "nonn", "tabf" ]
A023355
[ 103, 937, 4129, 17959, 21067, 38561, 113567, 125539, 179999, 215153, 225779, 293651, 310027, 324449, 341227, 384619, 454417, 458981, 491489, 505919, 521527, 526441, 535351, 612889, 640477, 672439, 766211, 791797, 837047, 849763, 873569 ]
[ "nonn" ]
A049235
[ 0, 6, 75, 708, 5991, 47868, 369315, 2783448, 20631126, 151026498, 1094965524, 7878119760, 56330252412, 400703095284, 2838060684483, 20027058300144, 140874026880204, 988194254587242, 6915098239841331, 48285969880645900, 336521149274459970 ]
[ "nonn" ]
A160717
[ 0, 105, 406, 703, 903, 11026, 13041, 14028, 15051, 27028, 36046, 41041, 43071, 46056, 61075, 66066, 75078, 77028, 83028, 85078, 93096, 1110795, 1130256, 1160526, 1180416, 1250571, 1290421, 1330896, 1350546, 1360425, 1380291 ]
[ "base", "easy", "nonn" ]
A329795
[ 2, 1, 2, 3, 1, 2, 3, 4, 5, 3, 1, 2, 3, 1, 2, 3, 4, 5, 1, 2, 3, 4, 1, 2, 3, 4, 5, 1, 2, 1, 2, 1, 2, 3, 4, 5, 1, 2, 3, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 2, 3, 4, 1, 2, 3, 4, 5, 6, 7, 1, 2, 1, 2, 3, 4, 5, 6 ]
[ "nonn", "base" ]
A185954
[ 1, 3, 8, 13, 23, 32, 49, 59, 80, 93, 127, 144, 185, 203, 256, 269, 319, 328, 401, 419, 504, 525, 639, 656, 761, 763, 904, 917, 1063, 1064, 1241, 1227, 1368, 1317, 1503, 1480, 1681, 1659, 1928, 1909, 2143, 2080, 2393, 2371, 2696, 2653, 3055, 2992, 3305, 3147 ]
[ "nonn" ]
A242185
[ 8, 18, 23, 36, 49, 108, 108, 126, 128, 135, 136, 143, 216, 225, 245, 288, 288, 300, 343, 368, 375, 400, 450, 500, 576, 588, 600, 648, 686, 693, 784, 900, 1026, 1098, 1125, 1156, 1183, 1215, 1350, 1350, 1440, 1458, 1568, 1628, 1638, 1681, 1728, 1728, 1863, 2000 ]
[ "nonn" ]
A387052
[ 4, 9, 3, 6, 7, 6, 2, 1, 0, 8, 5, 9, 4, 9, 4, 7, 8, 6, 8, 8, 7, 9, 3, 5, 8, 2, 4, 9, 8, 4, 2, 7, 1, 5, 3, 7, 3, 6, 6, 1, 0, 0, 9, 2, 0, 3, 5, 0, 5, 7, 5, 5, 6, 2, 2, 2, 9, 5, 6, 3, 3, 3, 4, 2, 0, 4, 4, 9, 4, 2, 0, 2, 9, 1, 1, 9, 8, 2, 4, 3, 7, 4, 2, 0, 3, 7, 0, 2, 2, 2, 6, 9, 6, 6, 7, 9, 3, 7, 8, 8, 6, 9, 8, 9, 9 ]
[ "nonn", "cons" ]
A379472
[ 0, 1, 3, 2, 5, 4, 6, 7, 15, 14, 12, 11, 10, 13, 9, 8, 17, 16, 18, 25, 20, 21, 29, 26, 30, 31, 23, 28, 27, 22, 24, 19, 51, 38, 48, 35, 54, 59, 43, 44, 60, 47, 63, 62, 39, 56, 46, 55, 34, 49, 33, 32, 57, 50, 36, 41, 45, 52, 58, 61, 40, 37, 53, 42, 85, 84, 106, 117, 80, 69, 101, 74, 90, 109, 77, 104, 125, 122, 116, 93 ]
[ "nonn", "easy", "base" ]
A072694
[ 4, 216, 24300000, 18010885410000000, 9.993825885714653e+36, 1.6151740133123737e+58 ]
[ "easy", "nonn" ]
A252834
[ 16, 85, 529, 3365, 18528, 78674, 244131, 569420, 1070036, 1750150, 2610438, 3650950, 4871686, 6272646, 7853830, 9615238, 11556870, 13678726, 15980806, 18463110, 21125638, 23968390, 26991366, 30194566, 33577990, 37141638, 40885510 ]
[ "nonn" ]
A368334
[ 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1 ]
[ "nonn", "easy", "mult" ]
A056495
[ 4, 6, 12, 30, 60, 138, 252, 600, 1008, 2490, 4092, 10050, 16380, 40698, 65460, 163200, 262140, 654192, 1048572, 2618850, 4194036, 10481658, 16777212, 41932200, 67108800, 167755770, 268434432, 671047650 ]
[ "nonn" ]
A130162
[ 1, 1, 1, 1, 0, 2, 1, 1, 0, 3, 1, 0, 0, 0, 6, 1, 1, 2, 0, 0, 7, 1, 0, 0, 0, 0, 0, 14, 1, 1, 0, 3, 0, 0, 0, 17, 1, 0, 2, 0, 0, 0, 0, 0, 27, 1, 1, 0, 0, 6, 0, 0, 0, 0, 34, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 55, 1, 1, 2, 3, 0, 7, 0, 0, 0, 0, 0, 63 ]
[ "nonn", "tabl" ]
A220326
[ 7, 174, 4062, 92093, 2065264, 46094354, 1026529800, 22841390408, 508110710307, 11302385499363, 251409042152240, 5592331837970994, 124395540371693940, 2767041352339397000 ]
[ "nonn" ]
A314164
[ 1, 5, 11, 16, 22, 28, 34, 40, 45, 51, 56, 61, 67, 72, 78, 84, 90, 96, 101, 107, 112, 117, 123, 128, 134, 140, 146, 152, 157, 163, 168, 173, 179, 184, 190, 196, 202, 208, 213, 219, 224, 229, 235, 240, 246, 252, 258, 264, 269, 275 ]
[ "nonn" ]
A202846
[ 0, 0, 0, 1, 3, 6, 16, 44, 113, 290, 749, 1930, 4966, 12776, 32870, 84577, 217665, 560328, 1442893, 3716837, 9577805, 24689612, 63667585, 164239124, 423824628, 1094065998, 2825169786, 7297681867, 18856458451, 48737762624, 126007604078, 325873570924, 842982118807 ]
[ "nonn" ]
A060797
[ 1, 1, 2, 5, 14, 48, 173, 714, 3114, 14936, 80434, 447839, 2724103, 17442771, 114379899, 784149081, 5708691485, 43849291330, 342473913399, 2803269796341, 23620771158594, 201815957246321, 1793779464521955, 16342108667160300, 154171144824009000 ]
[ "nonn" ]
A223239
[ 7, 102, 11538, 5336844, 22029652542, 372027916726176, 55925027353114180000, 3.4340768547284824e+25, 1.876659456652145e+32, 4.1889700543681996e+39 ]
[ "nonn" ]
A336889
[ 1, 1, 1, 2, 2, 3, 4, 1, 7, 6, 5, 8, 5, 5, 9, 10, 9, 13, 10, 5, 7 ]
[ "nonn", "more" ]
A273087
[ 1, 0, 2, 3, 5, 2, 3, 9, 9, 9, 3, 4, 1, 0, 0, 5, 8, 6, 3, 4, 9, 7, 7, 9, 8, 6, 5, 6, 7, 2, 4, 9, 7, 1, 8, 5, 2, 5, 6, 4, 9, 1, 4, 6, 0, 7, 9, 4, 8, 7, 8, 4, 7, 4, 1, 8, 7, 2, 1, 5, 1, 9, 8, 5, 8, 7, 4, 1, 3, 4, 7, 9, 7, 7, 6, 7, 8, 4, 6, 0, 3, 1, 1, 1, 3, 0, 2, 2, 8, 5, 7, 7, 4, 6, 8, 7, 6, 0, 1, 9, 3, 3, 5, 5, 0 ]
[ "nonn", "cons" ]
A159889
[ 1, 32, -34, -68800, -2093684, 224163712, 18248827144, -839028775168, -161999734633840, 1917548044739072, 1603923010615074800, 31037878026343010000, -1.7673243900695265e+22, -9.596007042446994e+23, 2.123705740743323e+26, 2.100946400165112e+28 ]
[ "sign", "frac" ]
A041270
[ 12, 73, 1764, 10657, 257532, 1555849, 37597908, 227143297, 5489037036, 33161365513, 801361809348, 4841332221601, 116993335127772, 706801342988233, 17080225566845364, 103188154744060420, 2493595939424295400 ]
[ "nonn", "cofr", "frac", "easy" ]
A197807
[ 1, 1, 3, 0, 6, 1, 9, 0, 7, 2, 7, 7, 6, 3, 9, 4, 9, 6, 1, 2, 8, 8, 6, 5, 0, 0, 5, 8, 9, 4, 5, 4, 0, 6, 8, 7, 0, 2, 7, 8, 6, 0, 8, 7, 8, 8, 9, 6, 9, 4, 2, 4, 3, 8, 5, 4, 2, 0, 9, 1, 2, 5, 6, 4, 6, 8, 5, 8, 7, 7, 4, 5, 8, 3, 3, 4, 1, 9, 9, 5, 8, 5, 0, 5, 3, 0, 9, 6, 7, 8, 3, 5, 6, 7, 0, 6, 5, 8, 5 ]
[ "nonn", "cons" ]
A200413
[ 1, 4, 9, 0, 1, 4, 5, 8, 2, 7, 9, 1, 2, 3, 2, 0, 4, 6, 1, 4, 3, 7, 5, 7, 0, 2, 7, 8, 4, 7, 3, 0, 8, 6, 6, 9, 0, 7, 2, 1, 1, 5, 5, 3, 5, 8, 2, 0, 1, 8, 5, 1, 2, 2, 9, 6, 1, 8, 7, 3, 7, 8, 1, 5, 9, 3, 8, 9, 7, 4, 1, 9, 6, 3, 4, 0, 7, 9, 3, 3, 4, 9, 9, 4, 5, 0, 7, 3, 7, 4, 2, 2, 8, 0, 7, 3, 7, 4, 7 ]
[ "nonn", "cons" ]
A326477
[ 1, 0, 1, 0, 4, 3, 0, 46, 60, 15, 0, 1114, 1848, 840, 105, 0, 46246, 88770, 54180, 12600, 945, 0, 2933074, 6235548, 4574130, 1469160, 207900, 10395, 0, 263817646, 605964450, 505915410, 199849650, 39729690, 3783780, 135135 ]
[ "nonn", "tabl" ]
A042864
[ 31, 621, 652, 1925, 12202, 14127, 26329, 93114, 119443, 212557, 332000, 544557, 6322127, 6866684, 33788863, 108233273, 142022136, 2096543177, 2238565313, 8812239116, 37487521777, 46299760893 ]
[ "nonn", "frac", "easy" ]
A088461
[ 1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 21, 22, 22, 23, 23, 24, 24, 25, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 30, 31, 31, 32, 32, 33, 33, 34, 34, 34 ]
[ "nonn" ]
A125119
[ 1, 13, 341, 19531, 2015539, 329554457, 78536544841, 25736391511831, 11111111111111112, 6115909044841455000, 4.182283628124518e+21, 3.4794921177844266e+24, 3.4614458312191054e+27 ]
[ "nonn", "base" ]
A209085
[ 3, 3, 7, 5, 7, 7, 11, 11, 13, 31, 17, 19, 19, 23, 23, 23, 31, 31, 29, 31, 31, 37, 47, 41, 43, 43, 47, 47, 47, 53, 59, 59, 61, 127, 67, 67, 71, 71, 71, 79, 73, 79, 79, 79, 83, 83, 89, 127, 97, 103, 101, 103, 103, 107, 107, 109, 127, 113, 127, 127, 127, 127 ]
[ "nonn", "base" ]
A004068
[ 0, 1, 7, 23, 54, 105, 181, 287, 428, 609, 835, 1111, 1442, 1833, 2289, 2815, 3416, 4097, 4863, 5719, 6670, 7721, 8877, 10143, 11524, 13025, 14651, 16407, 18298, 20329, 22505, 24831, 27312, 29953, 32759, 35735, 38886, 42217, 45733, 49439, 53340, 57441, 61747, 66263 ]
[ "nonn", "easy" ]
A206512
[ 81, 549, 549, 3399, 7737, 3399, 19797, 93405, 93405, 19797, 111495, 1020756, 2105607, 1020756, 111495, 614367, 10505604, 41873838, 41873838, 10505604, 614367, 3337695, 103812645, 769739571, 1483188648, 769739571, 103812645 ]
[ "nonn", "tabl" ]
A243391
[ 1, 3, 4, 12, 22, 68, 166, 534, 1589, 5464, 18579, 68320, 255424, 1000852, 4018156, 16671976, 70890940, 309439942, 1381815168, 6310880471, 29428287639, 140012980007, 678970863717, 3353545264060, 16857749613964, 86191265140699, 447951112379963, 2365177154077186 ]
[ "nonn" ]
A122361
[ 0, 1, 3, 2, 8, 7, 4, 6, 5, 22, 21, 17, 20, 18, 11, 10, 14, 19, 16, 9, 15, 13, 12, 64, 63, 58, 62, 59, 48, 46, 54, 61, 57, 45, 55, 50, 49, 33, 30, 29, 27, 26, 39, 38, 51, 60, 56, 42, 44, 53, 47, 28, 23, 37, 52, 43, 25, 41, 36, 35, 24, 40, 31, 34, 32, 196, 195, 189, 194, 190 ]
[ "nonn" ]
A010511
[ 7, 6, 1, 5, 7, 7, 3, 1, 0, 5, 8, 6, 3, 9, 0, 8, 2, 8, 5, 6, 6, 1, 4, 1, 1, 0, 2, 7, 1, 5, 8, 3, 2, 3, 0, 0, 5, 3, 6, 0, 7, 0, 5, 5, 9, 2, 5, 4, 6, 5, 9, 8, 4, 6, 8, 9, 5, 0, 4, 8, 4, 2, 4, 0, 5, 2, 0, 3, 5, 2, 1, 5, 7, 3, 7, 3, 0, 0, 1, 2, 4, 4, 6, 4, 2, 2, 6, 9, 7, 1, 4, 3, 8, 7, 1, 5, 1, 6, 4 ]
[ "nonn", "cons" ]
A313390
[ 1, 5, 10, 13, 17, 22, 27, 29, 34, 41, 48, 53, 58, 61, 65, 70, 71, 75, 80, 87, 94, 101, 106, 107, 111, 118, 117, 119, 128, 133, 140, 147, 154, 153, 157, 166, 163, 165, 174, 181, 186, 193, 200, 199, 203, 214, 209, 211, 222, 227 ]
[ "nonn" ]
A389328
[ 1, 0, 0, 3, 12, 30, 75, 231, 756, 2352, 7110, 21780, 67947, 212784, 664755, 2077803, 6515460, 20486088, 64501536, 203289417, 641479482, 2026745010, 6410455128, 20294491140, 64303461387, 203910988680, 647103880800, 2054979055155, 6530066896743, 20762827798482 ]
[ "nonn" ]
A265287
[ 0, 1, 5, 2, 4, 6, 6, 3, 14, 5, 5, 7, 13, 7, 7, 4, 18, 15, 12, 6, 9, 6, 20, 8, 17, 14, 11, 8, 11, 8, 8, 5, 19, 19, 19, 16, 19, 13, 10, 7, 13, 10, 13, 7, 7, 21, 18, 9, 21, 18, 18, 15, 18, 12, 12, 9, 30, 12, 12, 9, 12, 9, 9, 6, 23, 20, 17, 20, 23, 20, 23, 17, 17 ]
[ "nonn" ]
A087161
[ 1, 2, 4, 10, 30, 98, 330, 1122, 3826, 13058, 44578, 152194, 519618, 1774082, 6057090, 20680194, 70606594, 241065986, 823050754, 2810071042, 9594182658, 32756588546, 111837988866, 381838778370, 1303679135746, 4451038986242 ]
[ "nonn" ]
A259535
[ 2, 3, 17, 107, 13313 ]
[ "nonn", "more", "hard" ]
A385679
[ 8, 10, 12, 14, 15, 18, 20, 24, 26, 28, 32, 33, 34, 35, 38, 39, 40, 42, 44, 50, 51, 54, 55, 57, 58, 62, 63, 65, 66, 68, 74, 76, 77, 78, 80, 82, 85, 86, 87, 88, 91, 92, 94, 95, 96, 98, 99, 106, 110, 111, 112, 114, 115, 116, 117, 119, 122, 123, 124, 125, 129, 130, 132, 134, 136, 138, 140, 143, 146 ]
[ "nonn" ]
A239901
[ 13, 17, 41, 53, 101, 137, 149, 277, 313, 317, 389, 401, 433, 449, 521, 557, 569, 673, 677, 701, 761, 769, 809, 857, 877, 953, 977, 1009, 1129, 1213, 1277, 1297, 1361, 1373, 1409, 1489, 1493, 1549, 1613, 1637, 1657, 1697, 1709, 1741, 1789, 1861, 1873, 1901 ]
[ "nonn" ]
A197877
[ 2, 0, 5, 6, 465, 7, 16, 208, 37, 17, 11, 58, 40, 35, 84, 18, 45, 29, 395, 30, 68, 59, 41, 62, 32, 191, 325, 109, 369, 33, 89, 72, 36, 85, 42, 47, 64, 51, 101, 88, 77, 49, 125, 394, 1124, 249, 76, 50, 54, 65, 119, 74, 2193, 61, 483, 133, 80, 186, 95, 990, 468 ]
[ "nonn" ]
A344947
[ 1, 1, 1, 4, 1, 4, 8, 18, 1, 4, 8, 18, 16, 36, 54, 96, 1, 4, 8, 18, 16, 36, 54, 96, 32, 72, 108, 192, 162, 288, 384, 600, 1, 4, 8, 18, 16, 36, 54, 96, 32, 72, 108, 192, 162, 288, 384, 600, 64, 144, 216, 384, 324, 576, 768, 1200, 486, 864, 1152, 1800, 1536, 2400 ]
[ "nonn" ]
A312959
[ 1, 4, 9, 13, 18, 24, 27, 31, 38, 39, 46, 54, 54, 63, 68, 64, 76, 82, 79, 92, 96, 96, 106, 108, 107, 117, 126, 122, 132, 144, 134, 145, 157, 142, 162, 174, 156, 182, 185, 168, 196, 194, 184, 211, 210, 204, 222, 222, 217, 231 ]
[ "nonn" ]
A276455
[ 3, 701, 45269999 ]
[ "nonn", "bref" ]
A164751
[ 96, 3576, 66970, 920072, 10521134, 106357664, 983760734, 8508516160, 69824478502 ]
[ "nonn" ]
A052189
[ 20183, 21893, 25373, 29251, 30431, 34613, 50423, 54833, 56131, 58111, 63541, 66413, 74453, 74471, 76543, 76561, 77933, 78241, 81421, 107563, 108421, 110441, 112163, 121403, 122081, 122561, 131023, 132893, 132911, 135283, 137303, 137831, 143141, 144593, 145643 ]
[ "nonn" ]
A345329
[ 4, 8, 16, 27, 32, 57, 64, 125, 128, 201, 217, 243, 249, 256, 297, 329, 343, 393, 441, 473, 489, 512, 537, 553, 633, 649, 681, 713, 889, 921, 1024, 1081, 1161, 1177, 1257, 1273, 1331, 1337, 1401, 1497, 1529, 1561, 1577, 1593, 1641, 1673, 1689, 1817, 1897, 1929, 1977, 2048 ]
[ "nonn" ]
A015008
[ 1, 1, 10, 910, 746200, 5507702200, 365876657146000, 218747042884536170000, 1.1770428382348276e+27, 5.700131384823024e+34, 2.484391148818915e+43, 9.745353341334246e+52 ]
[ "nonn", "easy" ]
A071830
[ 4, 6, 8, 10, 9, 14, 16, 12, 15, 22, 18, 26, 21, 20, 32, 34, 24, 38, 25, 28, 33, 46, 27, 30, 39, 36, 35, 58, 40, 62, 64, 44, 51, 42, 48, 74, 57, 52, 45, 82, 49, 86, 55, 50, 69, 94, 54, 56, 60, 68, 65, 106, 72, 66, 63, 76, 87, 118, 75, 122, 93, 70, 128, 78, 77, 134, 85, 92 ]
[ "nonn", "easy" ]
A335068
[ 1, 2, 4, 6, 12, 30, 36, 60, 180, 240, 420, 840, 1680, 2520, 5040, 7560, 12600, 15120, 30240, 55440, 110880, 221760, 332640, 665280, 720720, 1441440, 2882880, 3603600, 4324320, 10810800, 24504480, 36756720, 41081040, 43243200, 64864800, 73513440, 122522400, 183783600 ]
[ "nonn" ]
A071060
[ 7, 73, 773, 7757, 77773, 777737, 7777753, 77777377, 777777773, 7777777577, 77777777573, 777777777773, 7777777777573, 77777777777753, 777777777777773, 7777777777777753, 77777777777775550, 777777777777777800, 7777777777777778000, 77777777777777770000, 777777777777777800000, 7.777777777777777e+21, 7.777777777777777e+22 ]
[ "base", "nonn" ]
A078692
[ 1, -2, -2, 1, 1, -4, 0, 10, 0, -4, 1, 1, -6, 6, 19, -24, -24, 19, 6, -6, 1, 1, -8, 16, 20, -80, -8, 134, -8, -80, 20, 16, -8, 1, 1, -10, 30, 5, -160, 128, 330, -340, -340, 330, 128, -160, 5, 30, -10, 1, 1, -12, 48, -34, -240, 468, 399, -1416, -192, 2020, -192, -1416, 399, 468, -240, -34, 48, -12, 1 ]
[ "sign", "tabf" ]
A065139
[ 1, 2, 7, 9, 23, 57, 149, 368, 921, 5863, 14531, 36087, 36255, 36257, 233084, 1505984, 1151321194, 1151321361, 7826138122, 967823489175, 967823489458, 967823489477, 967823489490, 967823489491, 2545928465925, 123116092093107, 123116092093185, 123116092094024 ]
[ "nonn" ]
A015261
[ 1, 91, 9191, 918191, 91828191, 9182728191, 918273728191, 91827363728191, 9182736463728192, 918273645463728100, 91827364555463720000, 9.182736455455464e+21, 9.182736455464555e+23 ]
[ "nonn", "easy" ]
A237219
[ 256, 1416, 8238, 50998, 324760, 2135910, 14272968, 97077068, 665750830, 4607875290, 32019860020, 223534827494, 1563373657868, 10959098528264, 76884218567414, 539997393805814, 3793994100382864, 26671435372462390 ]
[ "nonn" ]
A383362
[ 1, 2, 3, 4, 3, 3, 4, 5, 4, 3, 3, 5, 4, 6, 3, 4, 3, 4, 3, 4, 7, 3, 4, 3, 3, 7, 4, 3, 4, 3, 3, 9, 4, 3, 8, 4, 4, 5, 3, 3, 4, 8, 3, 10, 4, 3, 3, 8, 4, 3, 12, 4, 5, 3, 3, 4, 10, 5, 10, 4, 3, 4, 3, 3, 4, 3, 5, 3, 4, 3, 4, 3, 4, 8, 3, 10, 4, 3, 4, 3, 5, 4, 4, 7, 3, 4 ]
[ "nonn", "easy" ]
A283101
[ 0, 0, 4, 344, 8760, 157504, 2388204, 32737984, 419969088, 5141235840, 60795581132, 700024311536, 7892352548080 ]
[ "nonn" ]
A317080
[ 1, 1, 2, 6, 34, 392 ]
[ "nonn", "more" ]
A316446
[ 5, 333, 2832, 26592, 325839, 3624515, 39827783, 450251619, 5054524591, 56578716738, 634936650160, 7125189371718, 79916528368117, 896523310090091, 10058160152676108, 112836051189847100, 1265844361104781300 ]
[ "nonn" ]
A086968
[ 4, 7, 23, 26, 35, 39, 41, 42, 57, 64, 77, 98, 102, 103, 108, 111, 140, 156, 161, 163, 167, 184, 185, 186, 216, 228, 267, 269, 302, 317, 318, 324, 327, 331, 333, 334 ]
[ "easy", "nonn" ]
A151525
[ 1, 2, 4, 12, 35, 116, 392, 1390, 4998, 18321, 67791, 253288, 952527, 3603761, 13699516, 52301427, 200406183, 770429000, 2970400815, 11482461055, 44491876993, 172766558719, 672186631950, 2619995431640, 10228902801505, 39996342220199, 156612023001490, 614044351536722 ]
[ "nonn" ]
A213784
[ 12, 84, 204, 456, 1140, 5424, 10044, 11004, 13656, 17940, 27804, 36576, 43296, 62784, 72024, 87576, 87780, 94116, 99336, 107184, 120204, 131460, 161496, 165516, 168636, 179640, 187116, 190464, 197820, 213324, 219696, 235080, 235620, 244404, 251796, 263556 ]
[ "nonn", "nice" ]
A285136
[ 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1 ]
[ "nonn", "easy" ]
A322682
[ 98422632, 98724000, 99373500, 100693920, 101356380, 111298770, 98724000, 99373500, 100693920, 101356380, 111298770, 114002850, 152611020, 152891400, 161014380, 162770850, 171652650, 171733650, 173949984, 185635044, 187420296, 195265356, 195856836, 210450786 ]
[ "nonn", "tabf" ]
A078756
[ 6, 2, 9, 2, 3, 3, 2, 1, 3, 1, 3, 8, 6, 0, 7, 5, 8, 7, 7, 8, 4, 4, 5, 8, 2, 2, 0, 3, 3, 2, 4, 6, 9, 6, 3, 6, 7, 9, 4, 4, 2, 2, 8, 0, 6, 1, 5, 9, 2, 1, 7, 1, 0, 4, 6, 4, 1, 8, 7, 7, 4, 0, 5, 2, 2, 1, 6, 1, 4, 5, 2, 0, 9, 3, 6, 5, 7, 0, 2, 0, 4, 2, 4, 9, 6, 5, 6, 2, 7, 5, 2, 6, 2, 3, 7, 3, 6, 5, 2, 1, 9, 5, 3, 1 ]
[ "nonn", "cons" ]
A097191
[ 1, 12, 60, 90, -558, -2916, 2160, 61155, 137619, -767880, -4940676, 0, 95128668, 285386004, -974126979, -8413235910, -6504831279, 142312459626, 552074177142, -1081032363522, -13861905214518, -20792857821777, 204246531941697, 1012677253935633, -890531709052761 ]
[ "sign" ]
A369513
[ 1, 6, 59, 704, 9317, 131534, 1940819, 29572146, 461725783, 7348829928, 118788308725, 1944758772450, 32180850839619, 537370617961928, 9043679909643500, 153238910560266240, 2612067747321248000, 44760267182734836000, 770626480741892400000 ]
[ "nonn" ]
A376175
[ 1, 1, 7, 97, 2035, 57445, 2042215, 87651865, 4410770875, 254705483725, 16603869256975, 1206175463317825, 96627476254984670, 8463175473211384000, 804573717383525400000, 8.251339009281315e+22, 9.080444173122231e+24, 1.0673607920253391e+27, 1.3346858377411431e+29 ]
[ "nonn" ]
A081440
[ 1, 1, 2, 4, 20, 76, 632, 3424, 38096, 265360, 3682592, 31332544, 520705088, 5232870592, 101265169280, 1173634791424, 25911499036928, 340187621683456, 8436057652027904, 123731966851240960, 3404264757518333000 ]
[ "easy", "nonn" ]
A059489
[ 1, 5, 66, 2431, 252586, 74327145, 62062015500, 147198472495020, 992340657705109400, 1.902317320122427e+22, 1.0372839015008453e+27, 1.6091515166356887e+32, 7.103125105832465e+37, 8.922933710590907e+43 ]
[ "nonn", "easy" ]
A146096
[ 1, 1, 2, 5, 3, 4, 5, 1, 0, 3, 1, 0, 1, 1, 4, 5, 5, 0, 1, 5, 4, 3, 3, 4, 3, 1, 4, 1, 5, 2, 3, 1, 2, 1, 3, 0, 1, 3, 4, 1, 1, 2, 5, 3, 4, 5, 1, 0, 3, 1, 0, 1, 1, 4, 5, 5, 0, 1, 5, 4, 3, 3, 4, 3, 1, 4, 1, 5, 2, 3, 1, 2, 1, 3, 0, 1, 3, 4, 1, 1, 2, 5, 3, 4, 5, 1, 0, 3, 1, 0, 1, 1, 4, 5, 5, 0, 1, 5, 4, 3, 3, 4, 3, 1, 4 ]
[ "nonn" ]
A233421
[ 6, 8, 10, 12, 14, 15, 18, 22, 20, 26, 21, 24, 34, 27, 38, 30, 28, 33, 46, 32, 39, 35, 40, 58, 42, 62, 45, 44, 51, 48, 74, 57, 52, 50, 82, 56, 86, 55, 60, 69, 94, 54, 63, 68, 65, 106, 70, 66, 72, 76, 87, 118, 75, 122, 93, 77, 78, 80, 134, 85, 92, 84 ]
[ "nonn" ]
A375923
[ 1, 1, 2, 6, 24, 112, 582, 3272, 19550, 122628, 800392, 5400342, 37475474, 266412680, 1934033968, 14300538652, 107471798112, 819442325086, 6329551390064, 49465665347580, 390692732060804, 3115700976866356, 25067250869113332, 203317147838575600, 1661425311693158000 ]
[ "nonn" ]
A310974
[ 1, 4, 8, 10, 12, 13, 15, 17, 20, 28, 32, 37, 43, 44, 44, 42, 43, 48, 53, 63, 70, 74, 75, 74, 75, 74, 72, 76, 87, 93, 102, 109, 108, 106, 103, 105, 107, 108, 117, 127, 134, 138, 139, 138, 135, 133, 138, 146, 148, 156 ]
[ "nonn" ]
A073037
[ 2357, 3571, 5711, 3137, 7717, 8389, 1103, 1031, 7109, 1091, 911, 2713, 9151, 1511, 1571, 3167, 9181, 1811, 1193, 1931, 9319, 9719, 1223, 7229, 3323, 9241, 7127, 1277, 1283, 8329, 3307, 1733, 7331, 3313, 3373, 7349, 3533, 3359, 3593, 3673, 6737, 3733 ]
[ "easy", "nonn", "base" ]
A275105
[ 1, 2, 5, 4, 3, 6, 7, 8, 17, 12, 10, 13, 23, 16, 19, 28, 24, 9, 15, 18, 21, 20, 14, 22, 11, 25, 27, 26, 30, 32, 29, 31, 62, 50, 48, 43, 57, 58, 56, 44, 40, 52, 54, 53, 59, 47, 74, 63, 45, 37, 79, 83, 84, 36, 67, 77, 95, 33, 91, 94, 86, 93, 96, 97, 35 ]
[ "nonn" ]
A048206
[ 1, 2, 2, 3, 4, 3, 3, 5, 4, 6, 4, 4, 5, 7, 8, 9, 5, 6, 5, 5, 10, 11, 6, 7, 12, 13, 6, 14, 6, 6, 9, 7, 15, 16, 17, 18, 7, 19, 8, 20, 7, 21, 7, 7, 9, 22, 8, 23, 24, 25, 13, 8, 26, 14, 9, 8, 27, 8, 8, 28, 15, 29, 9, 30, 31, 10, 16, 9, 17, 32, 18, 9, 13, 9, 9 ]
[ "nonn" ]
A136826
[ 0, 1, 5, 10, 11, 15, 50, 95, 100, 101, 105, 110, 150, 500, 501, 505, 950, 955, 995, 1000, 1001, 1005, 1010, 1011, 1050, 1095, 1100, 1101, 1105, 1500, 1515, 5000, 5001, 5005, 5010, 5011, 5015, 5050, 5095, 9500, 9550, 9950, 9955, 9995, 10000, 10001, 10005, 10010, 10011, 10050, 10095, 10100, 10105, 10110, 10500, 10950, 10955, 11000, 11001, 11005, 11010 ]
[ "base", "nonn" ]
A032088
[ 5, 10, 50, 300, 1500, 7750, 38750, 195000, 975000, 4881250, 24406250, 122062500, 610312500, 3051718750, 15258593750, 76293750000, 381468750000, 1907347656250, 9536738281250, 47683710937500 ]
[ "nonn", "easy" ]
A025428
[ 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 3, 0, 1, 2, 0, 1, 2, 1, 2, 2, 1, 2, 1, 0, 3, 2, 1, 2, 1, 2, 1, 2, 2, 1, 4, 1, 2, 3, 0, 2, 4, 1, 3, 2, 1, 4, 1, 1, 3, 3, 2, 2, 4, 2, 1, 3, 2, 3, 4, 2, 3, 3, 1, 2, 5, 2, 4, 3, 2, 4, 1, 1, 6, 4, 3, 4, 2, 3, 0, 4, 4, 3, 5, 1, 5, 5, 1, 4, 5, 2 ]
[ "nonn", "easy" ]
A110442
[ 6, 120, 55440, 367567200, 288807105787200, 1.970992304700454e+24, 4.601544765161023e+43, 2.0945137389024583e+73 ]
[ "nonn" ]
A355268
[ 1, 1, 4, 12, 60, 300, 1920, 13440, 109200, 982800, 9858240, 108440640, 1301952960, 16925388480, 236972736000, 3554591040000, 56873975558400, 966857584492800, 17403454164096000, 330665629117824000, 6613313252799053000, 138879578308780110000, 3.05535075095175e+21 ]
[ "nonn" ]
A277966
[ 4, 14, 24, 34, 40, 41, 42, 43, 44, 104, 114, 124, 134, 140, 141, 142, 143, 144, 204, 214, 224, 234, 240, 241, 242, 243, 244, 304, 314, 324, 334, 340, 341, 342, 343, 344, 400, 401, 402, 403, 404, 410, 411, 412, 413, 414, 420, 421, 422, 423, 424, 430, 431, 432 ]
[ "nonn", "base" ]
A235864
[ 15, 143, 255, 385, 3599, 5183, 11663, 32399, 34561, 36863, 51983, 57599, 65535, 97343, 121103, 147455, 176399, 186623, 195841, 359999, 435599, 685583, 1034881, 1040399, 1065023, 1192463, 1327103, 1742399, 2039183, 2108303, 2214143, 2585663, 2624399, 2782223, 3196943 ]
[ "nonn" ]
A272675
[ 0, 2, 5, 11, 30, 31, 32, 98, 101, 1092, 1116, 1143, 1250, 1251, 1601, 1715, 1757, 2712, 2714, 2771, 2778, 2781, 2844, 2981, 4398, 5298, 5421, 5423, 9189, 9191, 9195, 9200, 9204, 9210, 9407, 9411, 9414, 9420, 9422, 9432, 9434, 9438, 9440, 9630, 9632, 9644, 9650, 9656, 9662, 9666, 9671 ]
[ "nonn" ]
A018359
[ 1, 2, 3, 6, 43, 86, 129, 258 ]
[ "nonn", "fini", "full", "easy" ]
A288308
[ 3, 5, 6, 9, 10, 12, 13, 17, 19, 20, 22, 23, 26, 27, 29, 30, 34, 37, 38, 41, 42, 44, 45, 48, 49, 51, 52, 56, 58, 59, 61, 62, 65, 66, 68, 69, 73, 76, 77, 81, 83, 84, 86, 87, 91, 93, 94, 96, 97, 100, 101, 103, 104, 108, 110, 111, 113, 114, 117, 118, 120, 121 ]
[ "nonn", "easy" ]
A192253
[ 0, 1, 3, 15, 87, 687, 6447, 71967, 918687, 13256607, 212840607, 3765435807, 72741666207, 1523637512607, 34389853295007, 832071217775007, 21482864837231010, 589515687506543000, 17133249343107695000, 525731414152434300000, 1.6984313499467404e+22 ]
[ "nonn" ]
A228096
[ 1, 9, 15, 33, 39, 51, 55, 57, 75, 77, 93, 99, 111, 117, 135, 153, 155, 159, 171, 177, 195, 315, 333, 339, 351, 355, 357, 375, 393, 399, 513, 515, 519, 531, 535, 537, 551, 553, 555, 559, 573, 579, 591, 595, 597, 711, 717, 735, 753, 759, 771, 777, 795 ]
[ "nonn", "base" ]
A336716
[ 1, 2, 3, 5, 8, 13, 4, 7, 11, 20, 21, 30, 31, 40, 41, 50, 51, 6, 70, 71, 80, 81, 9, 10, 12, 32, 52, 72, 90, 91, 101, 14, 53, 82, 102, 22, 42, 60, 61, 73, 103, 33, 62, 83, 110, 15, 63, 92, 111, 23, 54, 93, 120, 24, 64, 104, 43, 74, 112, 34, 75, 121, 35, 84, 122, 44, 85, 130, 36, 94, 131, 45, 95, 140, 46, 105, 55, 106 ]
[ "base", "nonn" ]
A329000
[ 1, 6, 42, 60, 139810, 126, 139620524162, 2040, 349524, 419430, 2.53777950075016e+30, 16380, 4.46123820919079e+43, 418861572486, 146602109610, 1048560 ]
[ "nonn", "base" ]
A194003
[ 0, 1, 1, 3, 1, 3, 2, 3, 3, 2, 2, 3, 3, 2, 3, 3, 2, 3, 2, 3, 2, 3, 2, 4, 3, 3, 2, 6, 2, 4, 3, 3, 2, 2, 2, 4, 3, 3, 2, 4, 6, 3, 2, 2, 4, 3, 3, 2, 3, 3, 2, 2, 2, 2, 3, 3, 2, 5, 2, 3, 2, 4, 4, 4, 3, 6, 2, 5, 2, 2, 2, 5, 2, 5, 4, 4, 3, 4, 3, 5, 4, 2, 3, 4, 2, 4 ]
[ "nonn", "easy" ]
A327232
[ 10, 10011, 1000101110, 1000010011010111100, 1.0000010001100102e+35, 1.0000001000011e+68 ]
[ "nonn" ]