N8Programs/oeis-enhanced · Datasets at Hugging Face

id stringlengths 7 11	seq listlengths 1 347	keywords listlengths 1 8 ⌀
A141725	[ 1, 13, 61, 253, 1021, 4093, 16381, 65533, 262141, 1048573, 4194301, 16777213, 67108861, 268435453, 1073741821, 4294967293, 17179869181, 68719476733, 274877906941, 1099511627773, 4398046511101, 17592186044413, 70368744177661 ]	[ "nonn", "easy" ]
A301426	[ 1, 1, 1, 2, 2, 2, 2, 3, 4, 4, 4, 4, 5, 6, 6, 6, 6, 7, 8, 8 ]	[ "nonn", "more" ]
A305629	[ 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 0, 3, 3, 1, 3, 5, 2, 2, 4, 2, 1, 4, 3, 2, 4, 1, 4, 4, 2, 4, 4, 3, 1, 3, 2, 4, 12, 3, 2, 7, 1, 7, 15, 3, 4, 6, 3, 8, 8, 2, 4, 10, 6, 7, 7, 3, 6, 16, 3, 4, 6,...	[ "nonn" ]
A201095	[ 28, 140, 140, 14, 728, 3696, 3273, 323, 10516, 37590, 22872, 1288, 52828, 199384, 125466, 8034, 251361, 795924, 417829, 19994, 734712, 2454383, 1348173, 72589, 2214440, 6602880, 3229480, 143081, 4945844, 15462250, 7894324, 387000, 11616040 ]	[ "nonn" ]
A339576	[ 1, 4, 10, 17, 29, 41, 59, 74, 101, 121, 151, 179, 215, 245, 295, 326, 374, 423, 477, 519, 591, 641, 707, 767, 844, 904, 1000, 1056, 1140, 1234, 1324, 1387, 1507, 1587, 1701, 1794, 1902, 1992, 2136, 2226, 2346, 2476, 2602, 2692, ...	[ "nonn" ]
A254333	[ 1, 16, 1156, 22801, 1666681, 32878756, 2403352576, 47411143081, 3465632747641, 68366835443776, 4997440018745476, 98584929298781650, 7206305041398229000, 142159399682007680000, 1.0391486872256227e+22, 2.0499375575652578e+23, 1.4984516863488437e+25 ]	[ "nonn", "easy" ]
A106134	[ 1, 3, 5, 6, 13, 15, 80, 86, 6905, 6907, 6908, 6913, 6917, 613373, 613409, 613420, 613421, 613430, 613506, 613534, 613573, 613578, 613600, 58155529, 58155553, 6384425450, 6384425452, 6384425462, 6384425495, 6384425507, 6384425515, 6384425554, 6384425578...	[ "nonn", "hard" ]
A208008	[ 2, 16, 90, 841, 5952, 43264, 393049, 4084441, 32673396, 334012176, 3665311664, 37536737536, 385814058880, 4801282939489, 53629177761313, 628423124320161, 7905277739708518, 101862335149216850, 1250237739999352600 ]	[ "nonn" ]
A159390	[ 40, 17290, 10876248, 3744973114, 813350278400, 99052072571820, 6469138147152688, 243231208764113060, 5871649032381653000, 99740686767840130000, 1.277236022721642e+21, 1.2978098074693925e+22, 1.0876502220667504e+23, 7.745245739257607e+23, 4.797281936443026e+24 ]	[ "nonn" ]
A269688	[ 7, 49, 343, 2387, 16541, 114205, 786079, 5396363, 36961757, 252671461, 1724352175, 11750558099, 79971635933, 543661764877, 3692303721631, 25054980870395, 169888502127869, 1151188506903253, 7796069090763247, 52769330311322050 ]	[ "nonn" ]
A212489	[ 1245335, 318047135, 358491735, 533718135, 709131500, 1122571695, 1814416175, 3565970135, 4486354631, 14336906175, 14827262351, 22805269551, 36360557831, 43971297884, 72370166375, 99254203895, 102204949847, 145262865020, 156161459559, 173741271935, 231267964895 ]	[ "nonn" ]
A150132	[ 1, 2, 6, 20, 72, 267, 1049, 4143, 16949, 69663, 292819, 1233912, 5290492, 22699211, 98729286, 429510950, 1888906238, 8306249099, 36856032199, 163474875090, 730652199324, 3263990655764, 14676974122523, 65958239906224, 298117335758065, 1346561773642717, 611309235380...	[ "nonn", "walk" ]
A054268	[ 3, 5, 109, 111111109, 259259257 ]	[ "nonn", "base", "hard" ]
A363959	[ 1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 7, 9, 9, 11, 14, 16, 17, 25, 33, 39 ]	[ "nonn", "hard", "more" ]
A326552	[ 1, -8, 576, -160768, 123535360, -212713734144, 716196297048064, -4280584942657732600, 4.2250703121584165e+22, -6.511546311354587e+26, 1.4983590319172065e+31, -4.963019425614213e+35, 2.2953613919171563e+40, -1.4446095134460247e+45, 1.210225342227969e+50 ]	[ "sign" ]
A265091	[ 0, 120, 1080, 493920, 75502080, 16074373800, 3565914584400 ]	[ "nonn" ]
A281166	[ 1, 1, 3, 8, 17, 33, 64, 127, 255, 512, 1025, 2049, 4096, 8191, 16383, 32768, 65537, 131073, 262144, 524287, 1048575, 2097152, 4194305, 8388609, 16777216, 33554431, 67108863, 134217728, 268435457, 536870913, 1073741824, 2147483647, 4294967295, 8589934...	[ "nonn", "easy" ]
A116849	[ 1, 2, 5, 14, 41, 121, 356, 1044, 3057, 8948, 26192, 76674, 224465, 657137, 1923817, 5632105, 16488346, 48270655, 141315320, 413709331, 1211159679, 3545745012, 10380388294, 30389230117, 88966354626, 260454516946, 762496740130 ]	[ "nonn", "easy" ]
A001816	[ 12, 120, 720, 3360, 13440, 48384, 161280, 506880, 1520640, 4392960, 12300288, 33546240, 89456640, 233963520, 601620480, 1524105216, 3810263040, 9413591040, 23011000320, 55710842880, 133706022912, 318347673600, 752458137600, 1766640844800, 4122161971200 ]	[ "nonn", "easy" ]
A091141	[ 1, 4, 13, 40, 124, 382, 1180, 3640, 11236, 34672, 107008, 330232, 1019152, 3145216, 9706576, 29955712, 92447296, 285304288, 880486336, 2717295232, 8385927232, 25880062720, 79869243904, 246486884224, 760690618624, 2347590286336, 7244969278720, 22358918465536 ]	[ "nonn", "easy" ]
A209813	[ 173789, 23398105, 3428713825, 555404234236, 91909548662623, 15504605303759032, 2632434564856390700, 449096913581005000000, 7.677688320314158e+22, 1.314432963928743e+25 ]	[ "nonn" ]
A108805	[ 0, 0, 1, 2, 1, 2, 2, 0, 3, 0, 2, 2, 0, 2, 3, 0, 3, 0, 2, 2, 2, 2, 1, 0, 2, 0, 3, 2, 1, 2, 2, 0, 3, 0, 2, 2, 2, 2, 1, 0, 0, 0, 1, 2, 3, 2, 0, 0, 2, 0, 3, 2, 3, 2, 0, 0, 3, 0, 2, 2, 0, 2, 3, 0...	[ "nonn" ]
A009605	[ 0, 1, 2, 6, 16, 72, 288, 1848, 9920, 81088, 541184, 5318016, 42274816, 483162240, 4449451776, 57865303296, 605255720960, 8815813734400, 103187353223168, 1662921003208704, 21528004660707330, 380141599264751600, 5391886872902762000, 103492751953073900000 ]	[ "nonn", "easy" ]
A279662	[ 1, 1, 7, 154, 7700, 731500, 117771500, 29678418000, 11040371496000, 5796195035400000, 4144279450311000000, 3.920488359994206e+21, 4.7908367759129195e+24, 7.411424492337287e+27, 1.4266992147749276e+31, 3.367010146868829e+34 ]	[ "nonn" ]
A031895	[ 63, 127, 319, 463, 475, 553, 613, 867, 1009, 1053, 1167, 1179, 1231, 1245, 1275, 1303, 1471, 1485, 1611, 1675, 1723, 1749, 1869, 1977, 2079, 2251, 2335, 2355, 2439, 2491, 2505, 2523, 2557, 2587, 2647, 2899, 3199, 3325, 3351, 3451, 3465 ...	[ "nonn" ]
A151405	[ 1, 1, 3, 8, 23, 75, 238, 800, 2734, 9417, 33207, 117661, 421563, 1524047, 5537482, 20269868, 74545781, 275422975, 1022213776, 3806863892, 14227928563, 53338307668, 200505927183, 755722398596, 2854949775551, 10808994805493, 41006118620478, 155852743565206, 5933...	[ "nonn", "walk" ]
A358490	[ 34, 75025, 196418, 701408733, 225851433717, 591286729879, 23416728348467684, 420196140727489660, 927372692193079000000, 1.6641027750620564e+22, 1.1405930102594397e+23, 1.2649370320429975e+24, 5.358359254990966e+24, 2.3534128182412526e+30, 3.8079019294740253e+30 ]	[ "nonn" ]
A236853	[ 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1...	[ "nonn" ]
A063878	[ 893, 1961, 7087, 14219, 30607, 35417, 47053, 53953, 55421, 61513, 80089, 90509 ]	[ "dead" ]
A263423	[ 6, 961, 532620, 141086884, 34502512032, 9414955824400, 2581177525941432, 696932281399739400, 188117459428481340000, 5.0895976667736734e+22, 1.3771969942166582e+25, 3.725144577531136e+27 ]	[ "nonn" ]
A154640	[ 5, 5, 20, 60, 210, 690, 3330 ]	[ "hard", "more", "nonn" ]
A278548	[ 0, 70, 1531, 25402, 385040, 4880813, 50476458, 435272199, 3222371162, 21002624643, 122940347621, 656384657007, 3235421775340, 14866063786408, 64169850484506, 261881056692205, 1015819011059751, 3761887253493383 ]	[ "nonn" ]
A035440	[ 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 2, 1, 0, 1, 1, 2, 3, 2, 2, 1, 2, 3, 5, 5, 4, 3, 3, 5, 8, 8, 8, 6, 6, 8, 12, 13, 14, 13, 12, 13, 17, 20, 23, 23, 22, 21, 26, 30, 36, 38, 38, 37, 40, 45, 53, 59, 62, 61,...	[ "nonn" ]
A299234	[ 2, 4, 7, 9, 11, 15, 16, 19, 20, 23, 24, 31, 32, 33, 34, 39, 40, 41, 42, 47, 48, 49, 50, 63, 64, 65, 66, 67, 68, 69, 70, 79, 80, 81, 82, 83, 84, 85, 86, 95, 96, 97, 98, 99, 100, 101, 102, 127, 128, 129, 130, 131, ...	[ "nonn", "easy" ]
A228075	[ 3, 5, 7, 8, 11, 17, 21, 27, 29, 33, 39, 41, 47, 53, 57, 59, 63, 69, 71, 77, 81, 83, 87, 89, 93, 95, 97, 98, 113, 117, 119, 123, 137, 141, 143, 147, 161, 171, 173, 177, 179, 189, 191, 203, 213, 227, 231, 239, 243, 249, ...	[ "nonn", "base" ]
A024431	[ 1, 2, 6, 8, 18, 21, 44, 52, 106, 115, 232, 243, 488, 502, 1006, 1024, 2050, 2071, 4144, 4166, 8334, 8358, 16718, 16743, 33488, 33515, 67032, 67060, 134122, 134151, 268304, 268334, 536670, 536702, 1073406, 1073439, 2146880, 2146915, 4293832 ...	[ "nonn", "nice", "easy" ]
A101009	[ 2, 5, 17, 29, 87, 92, 153, 176, 227, 572, 896, 980, 1415, 1449, 3365, 4931, 5193, 13478, 18608, 23345, 51423, 74675, 80570 ]	[ "nonn", "hard", "more", "less" ]
A176700	[ 1, 1, 1, 1, 3, 1, 1, 5, 5, 1, 1, 14, 16, 14, 1, 1, 44, 55, 55, 44, 1, 1, 146, 187, 196, 187, 146, 1, 1, 504, 647, 686, 686, 647, 504, 1, 1, 1786, 2287, 2428, 2458, 2428, 2287, 1786, 1, 1, 6449, 8232, 8731, 8863, 8863...	[ "nonn", "tabl", "easy" ]
A345523	[ 627, 768, 838, 845, 857, 864, 874, 881, 894, 900, 920, 937, 950, 955, 962, 969, 976, 981, 983, 990, 1002, 1009, 1011, 1016, 1027, 1046, 1053, 1054, 1060, 1061, 1063, 1072, 1079, 1089, 1096, 1098, 1102, 1105, 1107, 1109, 1115, 1117, ...	[ "nonn" ]
A060707	[ 3, 8, 29, 44, 0, 47, 25, 53, 7, 24, 57, 36, 17, 43, 4, 29, 7, 10, 3, 41, 17, 52, 36, 12, 14, 36, 44, 51, 50, 15, 33, 7, 23, 59, 9, 13, 48, 22, 12, 21, 45, 22, 56, 47, 39, 44, 28, 37, 58, 23, 21, 11, 56, 33, 2...	[ "base", "cons", "nonn" ]
A082828	[ 1, 212, 3443, 56765, 89101110198, 1314151617161514200, 1.8192021222322212e+22, 2.425262728293039e+26, 3.1323334353637384e+30, 3.9404142444546476e+34 ]	[ "base", "easy", "nonn" ]
A192849	[ 0, 0, 24, 240, 1080, 3360, 8400, 18144, 35280, 63360, 106920, 171600, 264264, 393120, 567840, 799680, 1101600, 1488384, 1976760, 2585520, 3335640, 4250400, 5355504, 6679200, 8252400, 10108800, 12285000, 14820624, 17758440, 21144480 ]	[ "nonn", "easy" ]
A157793	[ 0, 1, 1, 3, 2, 6, 6, 11, 8, 15, 15, 25, 21, 29, 29, 41, 33, 44, 43, 61, 53, 66, 67, 89, 76, 88, 85, 107, 96, 112, 112, 139, 119, 135, 130, 161, 144, 165, 166, 205, 180, 197, 191, 227, 209, 235, 237, 283, 250, 267, 25...	[ "nonn", "base" ]
A376520	[ 2, 3, 8, 22, 32, 42, 28, 259, 91, 141, 172, 242, 341, 400, 556, 692, 198, 1119, 3126, 2072, 1779, 1737, 7596, 2913, 3246, 2101, 3598, 7651, 4383, 4294, 3457, 8284, 14220, 11986, 15101, 3204, 32808, 18217, 16273, 42990, 22303, 37037, ...	[ "nonn" ]
A124844	[ 1, 1, 2, 1, 4, -1, 1, 6, -3, 3, 1, 8, -6, 12, -4, 1, 10, -10, 30, -20, 7, 1, 12, -15, 60, -60, 42, -11, 1, 14, -21, 105, -140, 147, -77, 18, 1, 16, -28, 168, -280, 392, -308, 144, -29, 1, 18, -36, 252, -504, 882, -...	[ "sign", "easy", "tabl" ]
A250963	[ 10588744, 8862302446, 7555575891628, 6395621652233739, 5432045141123490000, 4.6331493184531165e+21, 3.95473236047743e+24, 3.3729134838144993e+27, 2.8751781157942617e+30 ]	[ "nonn" ]
A257420	[ 2616, 7652, 30309, 119393, 403951, 1293242, 4098078, 12497488, 37528750, 111339861, 326552920, 949466125, 2746182574, 7900552664, 22633690594, 64617935573, 183950154022, 522353720305, 1480269737481, 4187439072469 ]	[ "nonn" ]
A274726	[ 122, 1536, 5728, 66132, 771300, 8960464, 105328812, 1237030912, 14505195904, 170291855288, 1998101079148, 23450606174376, 275190816259724, 3229562907115528, 37899889658769384, 444774756528884100 ]	[ "nonn" ]
A226109	[ 15, 105, 1485, 18915, 666435, 2143485, 4174605, 10059855, 10440165, 28196295, 95295915, 124591005, 155064855, 171023265, 206258205, 298400235, 311737965, 347701635, 389470095, 459332895, 460424685, 498948255, 526517475, 537575655, 615496155, 645500415, 885763005, ...	[ "nonn" ]
A091409	[ 1, 3, 9, 220 ]	[ "nonn" ]
A224108	[ 1, 56, 184, 248, 376, 504, 568, 632, 672, 824, 864, 1016, 1208, 1248, 1336, 1528, 1592, 1656, 1784, 1824, 1912, 2016, 2104, 2168, 2232, 2488, 2688, 2872, 2936, 2976, 3064, 3360, 3384, 3448, 3512, 3552, 3704, 3832, 3896, 3968, 4024, 41...	[ "nonn" ]
A302254	[ 1, 1, 2, 4, 4, 4, 4, 4, 8, 8, 16, 16, 32, 32, 64, 64, 128, 128, 256, 256, 512, 512, 1024, 1024, 2048, 2048, 4096, 4096, 8192, 8192, 16384, 16384, 32768, 32768, 65536, 65536, 131072, 131072, 262144, 262144, 524288, 524288, 1048576, ...	[ "nonn", "easy" ]
A079274	[ 1, 0, 3, 4, 14, 18, 65, 82, 253, 378, 953, 1460, 3667, 5480, 12917, 20582, 45130, 71970, 156510, 248020, 524446, 846962, 1733252, 2806484, 5702101, 9186010, 18375867, 29872508, 58760991, 95500008, 186871472, 302966474, 587603027, 956192230, 1836704...	[ "easy", "nonn" ]
A251530	[ 31361437, 4060878845, 629694824303, 85453027245665, 11726484486571600, 1671396405843418000, 239415740786170800000, 3.4268623489221567e+22, 4.92679273222313e+24, 7.101745715454152e+26 ]	[ "nonn" ]
A098108	[ 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0...	[ "nonn", "easy", "mult" ]
A082299	[ 1, 2, 3, 4, 5, 1, 7, 2, 3, 1, 11, 1, 13, 1, 1, 8, 17, 2, 19, 1, 1, 1, 23, 3, 5, 1, 9, 1, 29, 10, 31, 2, 1, 1, 1, 2, 37, 1, 1, 1, 41, 6, 43, 1, 1, 1, 47, 1, 7, 2, 1, 1, 53, 1, 1, 1, 1, 1, 59, 12, 6...	[ "nonn" ]
A134639	[ 6, 36, 65, 245, 516 ]	[ "nonn", "more" ]
A347318	[ 1, 3, 4, 6, 6, 8, 9, 11, 12, 13, 15, 17, 19, 23, 29, 36, 43, 60, 91, 150, 265, 493, 946, 1848, 3649, 7246, 14437, 28814, 57564, 115059, 230044, 460010, 919938, 1839789, 3679485, 7358874, 14717646, 29435186, 58870261, 117740405, 23548068...	[ "nonn" ]
A001541	[ 1, 3, 17, 99, 577, 3363, 19601, 114243, 665857, 3880899, 22619537, 131836323, 768398401, 4478554083, 26102926097, 152139002499, 886731088897, 5168247530883, 30122754096401, 175568277047523, 1023286908188737, 5964153172084899, 34761632124320656 ]	[ "nonn", "easy", "nice" ]
A051804	[ 2, 12, 20, 21, 26, 34, 37, 43, 45, 54, 59, 62, 69, 73, 95, 96, 102, 112, 120, 121, 126, 134, 137, 143, 145, 154, 159, 162, 169, 173, 195, 196, 200, 201, 206, 210, 211, 216, 223, 225, 232, 239, 252, 260, 261, 268, 278, 279,...	[ "nonn", "easy", "base" ]
A126244	[ 6, 120, 39916800, 355687428096000, 8.841761993739702e+30, 3.345252661316381e+49, 1.3868311854568984e+80 ]	[ "easy", "nonn" ]
A186462	[ 16, 21, 21, 42, 30, 42, 61, 51, 51, 61, 106, 88, 111, 88, 106, 151, 128, 162, 162, 128, 151, 245, 197, 270, 309, 270, 197, 245, 359, 292, 362, 449, 449, 362, 292, 359, 567, 457, 590, 673, 797, 673, 590, 457, 567, 840, 688, ...	[ "nonn", "tabl" ]
A235876	[ 21, 105, 453, 1833, 7221, 28185, 109893, 429513, 1684821, 6633465, 26204133, 103802793, 412120821, 1639113945 ]	[ "nonn" ]
A346924	[ 1, 0, 0, 0, 0, 1, 15, 175, 1960, 22449, 269577, 3430790, 46480830, 671260876, 10329270952, 169125055736, 2940784282800, 54182845939104, 1055291277366108, 21674715826211532, 468366193441002560, 10624074081842024000, 252432685158931960000, 6.270222495850553e+21 ]	[ "nonn" ]
A002288	[ 0, 1, -8, 12, 64, -210, -96, 1016, -512, -2043, 1680, 1092, 768, 1382, -8128, -2520, 4096, 14706, 16344, -39940, -13440, 12192, -8736, 68712, -6144, -34025, -11056, -50760, 65024, -102570, 20160, 227552, -32768, 13104, -117648, -213360, -130752...	[ "sign", "easy", "nice", "mult" ]
A083711	[ 1, 1, 1, 2, 1, 4, 1, 5, 3, 7, 1, 14, 1, 13, 8, 20, 1, 33, 1, 40, 14, 44, 1, 85, 6, 79, 25, 117, 1, 181, 1, 196, 45, 233, 17, 389, 1, 387, 80, 545, 1, 750, 1, 839, 165, 1004, 1, 1516, 12, 1612, 234, 2040, 1, 276...	[ "nonn", "easy" ]
A109307	[ 11, 16, 27, 38, 44, 45, 52, 55, 56, 57, 63, 64, 68, 74, 75, 76, 77, 81, 112, 113, 114, 124, 134, 141, 142, 143, 148, 151, 152, 170, 180, 181, 182, 183, 184, 191, 192, 209, 214, 215, 216, 227, 240, 251, 252, 255, 256, 263, ...	[ "nonn" ]
A290176	[ 7, 38, 41, 57, 68, 117, 239, 268, 515, 682, 882, 1068, 1393, 1744, 1958, 1985, 2072, 2928, 2943, 3141, 4005, 4030, 4443, 5357, 5604, 5818, 6072, 6948, 8119, 8827, 9210, 9466, 10133, 11018, 11389, 12238, 12943, 13545, 13807, 14256, 14557...	[ "nonn", "base" ]
A041441	[ 1, 2, 3, 11, 58, 69, 472, 541, 3177, 10072, 13249, 36570, 1110349, 2257268, 3367617, 12360119, 65168212, 77528331, 530338198, 607866529, 3569670843, 11316879058, 14886549901, 41089978860, 1247585915701, 2536261810262, 3783847725963, 13887804988151 ]	[ "nonn", "frac", "easy" ]
A152808	[ 1, 1, 4, 10, 29, 93, 310, 1106, 4205, 16912, 71858, 321921, 1516429, 7493126, 38758968, 209453249, 1180293354, 6923457745, 42206892713, 267002169884, 1750266527588, 11873506488390, 83253781992093, 602667751464027 ]	[ "nonn" ]
A030735	[ 1, 5, 7, 21, 50, 51, 52, 142, 166, 219, 243, 252, 255, 261, 299, 327, 330, 331, 337, 340, 374, 376, 381, 384, 427, 430, 476, 479, 524, 528, 531, 586, 589, 628, 639, 647, 650, 696, 702, 704, 710, 713, 777, 780, 849 ]	[ "nonn" ]
A243659	[ 1, 1, 5, 34, 267, 2279, 20540, 192350, 1853255, 18252079, 182924645, 1859546968, 19127944500, 198725331588, 2082256791048, 21979169545670, 233495834018591, 2494624746580655, 26786319835972800, 288915128642169300, 3128814683222599000, 34007373443388860000 ]	[ "nonn", "easy" ]
A037006	[ 11, 18, 26, 34, 35, 52, 67, 74, 78, 81, 84, 88, 101, 105, 107, 113, 124, 134, 147, 150, 152, 161, 171, 189, 197, 204, 205, 222, 228, 233, 236, 255, 267, 279, 305, 317, 318, 322, 323, 334, 352, 372, 373, 383, 425, 431, 447, ...	[ "base", "nonn" ]
A106150	[ 0, 0, 0, 0, 3, 22, 82, 218, 476, 914, 1603, 2628, 4089, 6102, 8800, 12334, 16874, 22610, 29753, 38536, 49215, 62070, 77406, 95554, 116872, 141746, 170591, 203852, 242005, 285558, 335052, 391062, 454198, 525106, 604469, 693008, 791483, 900694,...	[ "nonn", "easy" ]
A385535	[ 9, 9, 0, 5, 0, 5, 6, 4, 1, 6, 3, 1, 5, 6, 8, 8, 4, 3, 2, 5, 7, 2, 9, 1, 6, 6, 3, 7, 7, 8, 8, 9, 6, 3, 9, 3, 2, 7, 0, 0, 3, 5, 8, 8, 4, 7, 6, 4, 1, 1, 5, 7, 9, 1, 4, 5, 2, 5, 8, 0, 3, 3, 7, 2...	[ "nonn", "cons", "easy" ]
A090230	[ 12, 99, 169, 395, 499, 595, 606, 693, 824, 827, 840, 940, 1282, 1291, 1384, 1594, 1705, 1742, 1905, 2020, 2060, 2153, 2257, 2302, 2359, 2367, 2507, 2546, 2557, 2710, 2724, 2791, 2832, 2857, 3036, 3051, 3280, 3309, 3429, 3497, 3518, 35...	[ "nonn", "base" ]
A326796	[ 2, -4, -154, 1336, 139402, -2516812, -531298962, 16291452784, 5792759106578, -269619415772564, -144868583759258000, 9514326895639572000, 7.196653593954009e+21, -6.337075763743425e+23, -6.418617363449033e+26, 7.297033668669371e+28, 9.535063173785141e+31, -1.359360175917408e+34, -2...	[ "sign" ]
A176016	[ 1, 1, 4, 5, 4, 9, 7, 2, 2, 4, 3, 6, 7, 9, 0, 2, 8, 1, 4, 1, 9, 6, 5, 4, 4, 2, 3, 3, 2, 9, 7, 0, 6, 6, 6, 0, 1, 8, 0, 5, 4, 8, 6, 9, 5, 0, 8, 8, 1, 9, 3, 1, 8, 0, 4, 4, 3, 1, 2, 6, 2, 2, 9, 4...	[ "cons", "nonn" ]
A272172	[ 1, 3, 1, 4, 3, 1, 7, 4, 3, 1, 6, 7, 4, 3, 1, 12, 6, 7, 4, 3, 1, 8, 12, 6, 7, 4, 3, 1, 15, 8, 12, 6, 7, 4, 3, 1, 13, 15, 8, 12, 6, 7, 4, 3, 1, 18, 13, 15, 8, 12, 6, 7, 4, 3, 1, 12, 18, 13, 15, 8, 1...	[ "nonn", "tabl" ]
A062630	[ 2, 3, 11, 31, 349, 379, 14669, 19001, 49957, 68909 ]	[ "nonn", "hard" ]
A109944	[ 1, 20, 30, 41, 50, 61, 70, 83, 97, 101, 110, 127, 130, 149, 151, 163, 170, 181, 190, 2003, 211, 223, 230, 241, 251, 263, 271, 281, 290, 307, 310, 3203, 331, 347, 353, 367, 370, 383, 397, 401, 410, 421, 430, 443, 457, 461, 47...	[ "base", "easy", "nonn" ]
A052935	[ 2, 2, 4, 9, 16, 32, 65, 128, 256, 513, 1024, 2048, 4097, 8192, 16384, 32769, 65536, 131072, 262145, 524288, 1048576, 2097153, 4194304, 8388608, 16777217, 33554432, 67108864, 134217729, 268435456, 536870912, 1073741825, 2147483648 ]	[ "easy", "nonn" ]
A357460	[ 72, 108, 120, 168, 180, 252, 420, 528, 560, 624, 1188, 1224, 1368, 1400, 1404, 1632, 1656, 1824, 1836, 1960, 1980, 2040, 2052, 2088, 2208, 2232, 2280, 2340, 2484, 2664, 2760, 2772, 2784, 2856, 2952, 2976, 3060, 3096, 3132, 3192, 3200, ...	[ "nonn" ]
A011766	[ 36159, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36514, 36524, 36524, 36525, 36524, 36524, 36524, 36525, 36524, 36524, 36524, 36525, 36524, 36524, 36524, 36525 ]	[ "nonn" ]
A214733	[ 0, 1, -1, -2, 5, 1, -16, 13, 35, -74, -31, 253, -160, -599, 1079, 718, -3955, 1801, 10064, -15467, -14725, 61126, -16951, -166427, 217280, 282001, -933841, 87838, 2713685, -2977199, -5163856, 14095453, 1396115, -43682474, 39494129, 91553293, -2...	[ "sign", "easy" ]
A290790	[ 1, 6, 32, 590, 21555, 1598353, 288676112, 111452109386 ]	[ "nonn", "more" ]
A238189	[ 1, 2, 1, 1, 2, 2, 1, 4, 7, 3, 1, 1, 4, 13, 10, 4, 1, 6, 23, 33, 22, 6, 1, 1, 6, 34, 68, 72, 30, 6, 1, 8, 49, 139, 204, 145, 54, 8, 1, 1, 8, 65, 230, 467, 476, 269, 70, 9, 1, 10, 85, 377, 961, 1348, 1080, 47...	[ "tabf", "nonn" ]
A329253	[ 1, 4, 15, 52, 190, 680, 2495, 9164, 33980 ]	[ "nonn", "more" ]
A140879	[ 1, 1, 1, 2, 1, 5, 1, 20, 1, 139, 1, 1777, 1, 42295, 1, 1888140, 1, 158903233, 1, 25355226287, 1, 7707419775769, 1 ]	[ "nonn" ]
A349291	[ 1, 2, 13, 139, 1775, 24886, 370099, 5733304, 91518691, 1494815215, 24862931821, 419674102147, 7170713484877, 123783319369420, 2155542171446485, 37820343323942570, 667957770644685800, 11865421405897930000, 211856917750711550000, 3.80004025501788e+21 ]	[ "nonn" ]
A252307	[ 1048, 1031, 1370, 1992, 3171, 5056, 7625, 12412, 19904, 30526, 49974, 80432, 123996, 203444, 327856, 506772, 832064, 1341188, 2076284, 3409168, 5493844, 8513612, 13975408, 22511348, 34911340, 57286320, 92228020, 143118508, 234743088 ]	[ "nonn" ]
A385771	[ 7, 787, 877, 887, 7877, 8087, 8707, 8807, 8887, 70877, 78007, 78707, 78787, 78877, 78887, 80077, 80777, 87877, 87887, 88007, 88807, 700087, 700877, 707887, 708007, 777787, 777877, 778777, 780707, 780877, 780887, 787777, 787807, 788077, 788087, 80...	[ "nonn", "base", "easy" ]
A093415	[ 1, 1, 1, 1, 3, 1, 1, 3, 2, 1, 1, 1, 1, 5, 1, 1, 3, 2, 5, 3, 1, 1, 3, 1, 5, 3, 7, 1, 1, 1, 2, 5, 1, 7, 4, 1, 1, 3, 1, 1, 3, 7, 2, 9, 1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 1, 1, 1, 1, 5, 1, 7, 1, 3, 5...	[ "easy", "nonn", "tabl", "frac" ]
A286818	[ 1, 11, 11, 1110, 111, 111110, 1111, 11111110, 11011, 1111111100, 110011, 111111111110, 1111111, 11111111100000, 11011111, 1111111111111000, 111110111, 111111111111111000, 1111110111, 11111111111111110000, 11001111111, 1.1111111111111102e+21, 110111100110 ]	[ "nonn", "easy" ]
A193126	[ 1, 5, 392, 130691, 116268789, 217138318913, 735586507699560, 4097541199291485000, 3.497863055510454e+22, 4.339563213126275e+26, 7.507648403517785e+30, 1.7522435912086304e+35, 5.3695362325359584e+39 ]	[ "nonn" ]
A351686	[ 13, 23, 31, 41, 53, 61, 73, 97, 103 ]	[ "nonn", "more" ]
A119645	[ 6, 385, 2800733, 297194980009, 1.3347353024983933e+21, 1.1619338480236378e+28, 1.0619210758832202e+40, 8.090715701006349e+47 ]	[ "easy", "nonn" ]
A207425	[ 40, 1600, 20550, 241087, 3210938, 39698733, 474552171, 5755114104, 69609375870, 836438494500, 10061632597765, 121113950382680, 1456404024212421, 17511407393280396, 210603058946646000, 2532582001420108300 ]	[ "nonn" ]
A114850	[ 256, 46656, 387420489, 10000000000, 11112006825558016, 437893890380859400, 5.842587018385982e+27, 3.4142787736421956e+29, 8.881784197001253e+34 ]	[ "easy", "nonn" ]
A352223	[ 18, -5, 107, -125, 712, -1152, -1719, -865, -5370, -7870, 2518, -963, -29949, -20030, 111491, 87797, 261536, 2274319, -140357, -3938794, -139674130, -792131385 ]	[ "sign", "more" ]

A141725

[ 1, 13, 61, 253, 1021, 4093, 16381, 65533, 262141, 1048573, 4194301, 16777213, 67108861, 268435453, 1073741821, 4294967293, 17179869181, 68719476733, 274877906941, 1099511627773, 4398046511101, 17592186044413, 70368744177661 ]

[ "nonn", "easy" ]

A301426

[ 1, 1, 1, 2, 2, 2, 2, 3, 4, 4, 4, 4, 5, 6, 6, 6, 6, 7, 8, 8 ]

[ "nonn", "more" ]

A305629

[ 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 0, 3, 3, 1, 3, 5, 2, 2, 4, 2, 1, 4, 3, 2, 4, 1, 4, 4, 2, 4, 4, 3, 1, 3, 2, 4, 12, 3, 2, 7, 1, 7, 15, 3, 4, 6, 3, 8, 8, 2, 4, 10, 6, 7, 7, 3, 6, 16, 3, 4, 6,...

[ "nonn" ]

A201095

[ 28, 140, 140, 14, 728, 3696, 3273, 323, 10516, 37590, 22872, 1288, 52828, 199384, 125466, 8034, 251361, 795924, 417829, 19994, 734712, 2454383, 1348173, 72589, 2214440, 6602880, 3229480, 143081, 4945844, 15462250, 7894324, 387000, 11616040 ]

[ "nonn" ]

A339576

[ 1, 4, 10, 17, 29, 41, 59, 74, 101, 121, 151, 179, 215, 245, 295, 326, 374, 423, 477, 519, 591, 641, 707, 767, 844, 904, 1000, 1056, 1140, 1234, 1324, 1387, 1507, 1587, 1701, 1794, 1902, 1992, 2136, 2226, 2346, 2476, 2602, 2692, ...

[ "nonn" ]

A254333

[ 1, 16, 1156, 22801, 1666681, 32878756, 2403352576, 47411143081, 3465632747641, 68366835443776, 4997440018745476, 98584929298781650, 7206305041398229000, 142159399682007680000, 1.0391486872256227e+22, 2.0499375575652578e+23, 1.4984516863488437e+25 ]

[ "nonn", "easy" ]

A106134

[ 1, 3, 5, 6, 13, 15, 80, 86, 6905, 6907, 6908, 6913, 6917, 613373, 613409, 613420, 613421, 613430, 613506, 613534, 613573, 613578, 613600, 58155529, 58155553, 6384425450, 6384425452, 6384425462, 6384425495, 6384425507, 6384425515, 6384425554, 6384425578...

[ "nonn", "hard" ]

A208008

[ 2, 16, 90, 841, 5952, 43264, 393049, 4084441, 32673396, 334012176, 3665311664, 37536737536, 385814058880, 4801282939489, 53629177761313, 628423124320161, 7905277739708518, 101862335149216850, 1250237739999352600 ]

[ "nonn" ]

A159390

[ 40, 17290, 10876248, 3744973114, 813350278400, 99052072571820, 6469138147152688, 243231208764113060, 5871649032381653000, 99740686767840130000, 1.277236022721642e+21, 1.2978098074693925e+22, 1.0876502220667504e+23, 7.745245739257607e+23, 4.797281936443026e+24 ]

[ "nonn" ]

A269688

[ 7, 49, 343, 2387, 16541, 114205, 786079, 5396363, 36961757, 252671461, 1724352175, 11750558099, 79971635933, 543661764877, 3692303721631, 25054980870395, 169888502127869, 1151188506903253, 7796069090763247, 52769330311322050 ]

[ "nonn" ]

A212489

[ 1245335, 318047135, 358491735, 533718135, 709131500, 1122571695, 1814416175, 3565970135, 4486354631, 14336906175, 14827262351, 22805269551, 36360557831, 43971297884, 72370166375, 99254203895, 102204949847, 145262865020, 156161459559, 173741271935, 231267964895 ]

[ "nonn" ]

A150132

[ 1, 2, 6, 20, 72, 267, 1049, 4143, 16949, 69663, 292819, 1233912, 5290492, 22699211, 98729286, 429510950, 1888906238, 8306249099, 36856032199, 163474875090, 730652199324, 3263990655764, 14676974122523, 65958239906224, 298117335758065, 1346561773642717, 611309235380...

[ "nonn", "walk" ]

A054268

[ 3, 5, 109, 111111109, 259259257 ]

[ "nonn", "base", "hard" ]

A363959

[ 1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 7, 9, 9, 11, 14, 16, 17, 25, 33, 39 ]

[ "nonn", "hard", "more" ]

A326552

[ 1, -8, 576, -160768, 123535360, -212713734144, 716196297048064, -4280584942657732600, 4.2250703121584165e+22, -6.511546311354587e+26, 1.4983590319172065e+31, -4.963019425614213e+35, 2.2953613919171563e+40, -1.4446095134460247e+45, 1.210225342227969e+50 ]

[ "sign" ]

A265091

[ 0, 120, 1080, 493920, 75502080, 16074373800, 3565914584400 ]

[ "nonn" ]

A281166

[ 1, 1, 3, 8, 17, 33, 64, 127, 255, 512, 1025, 2049, 4096, 8191, 16383, 32768, 65537, 131073, 262144, 524287, 1048575, 2097152, 4194305, 8388609, 16777216, 33554431, 67108863, 134217728, 268435457, 536870913, 1073741824, 2147483647, 4294967295, 8589934...

[ "nonn", "easy" ]

A116849

[ 1, 2, 5, 14, 41, 121, 356, 1044, 3057, 8948, 26192, 76674, 224465, 657137, 1923817, 5632105, 16488346, 48270655, 141315320, 413709331, 1211159679, 3545745012, 10380388294, 30389230117, 88966354626, 260454516946, 762496740130 ]

[ "nonn", "easy" ]

A001816

[ 12, 120, 720, 3360, 13440, 48384, 161280, 506880, 1520640, 4392960, 12300288, 33546240, 89456640, 233963520, 601620480, 1524105216, 3810263040, 9413591040, 23011000320, 55710842880, 133706022912, 318347673600, 752458137600, 1766640844800, 4122161971200 ]

[ "nonn", "easy" ]

A091141

[ 1, 4, 13, 40, 124, 382, 1180, 3640, 11236, 34672, 107008, 330232, 1019152, 3145216, 9706576, 29955712, 92447296, 285304288, 880486336, 2717295232, 8385927232, 25880062720, 79869243904, 246486884224, 760690618624, 2347590286336, 7244969278720, 22358918465536 ]

[ "nonn", "easy" ]

A209813

[ 173789, 23398105, 3428713825, 555404234236, 91909548662623, 15504605303759032, 2632434564856390700, 449096913581005000000, 7.677688320314158e+22, 1.314432963928743e+25 ]

[ "nonn" ]

A108805

[ 0, 0, 1, 2, 1, 2, 2, 0, 3, 0, 2, 2, 0, 2, 3, 0, 3, 0, 2, 2, 2, 2, 1, 0, 2, 0, 3, 2, 1, 2, 2, 0, 3, 0, 2, 2, 2, 2, 1, 0, 0, 0, 1, 2, 3, 2, 0, 0, 2, 0, 3, 2, 3, 2, 0, 0, 3, 0, 2, 2, 0, 2, 3, 0...

[ "nonn" ]

A009605

[ 0, 1, 2, 6, 16, 72, 288, 1848, 9920, 81088, 541184, 5318016, 42274816, 483162240, 4449451776, 57865303296, 605255720960, 8815813734400, 103187353223168, 1662921003208704, 21528004660707330, 380141599264751600, 5391886872902762000, 103492751953073900000 ]

[ "nonn", "easy" ]

A279662

[ 1, 1, 7, 154, 7700, 731500, 117771500, 29678418000, 11040371496000, 5796195035400000, 4144279450311000000, 3.920488359994206e+21, 4.7908367759129195e+24, 7.411424492337287e+27, 1.4266992147749276e+31, 3.367010146868829e+34 ]

[ "nonn" ]

A031895

[ 63, 127, 319, 463, 475, 553, 613, 867, 1009, 1053, 1167, 1179, 1231, 1245, 1275, 1303, 1471, 1485, 1611, 1675, 1723, 1749, 1869, 1977, 2079, 2251, 2335, 2355, 2439, 2491, 2505, 2523, 2557, 2587, 2647, 2899, 3199, 3325, 3351, 3451, 3465 ...

[ "nonn" ]

A151405

[ 1, 1, 3, 8, 23, 75, 238, 800, 2734, 9417, 33207, 117661, 421563, 1524047, 5537482, 20269868, 74545781, 275422975, 1022213776, 3806863892, 14227928563, 53338307668, 200505927183, 755722398596, 2854949775551, 10808994805493, 41006118620478, 155852743565206, 5933...

[ "nonn", "walk" ]

A358490

[ 34, 75025, 196418, 701408733, 225851433717, 591286729879, 23416728348467684, 420196140727489660, 927372692193079000000, 1.6641027750620564e+22, 1.1405930102594397e+23, 1.2649370320429975e+24, 5.358359254990966e+24, 2.3534128182412526e+30, 3.8079019294740253e+30 ]

[ "nonn" ]

A236853

[ 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1...

[ "nonn" ]

A063878

[ 893, 1961, 7087, 14219, 30607, 35417, 47053, 53953, 55421, 61513, 80089, 90509 ]

[ "dead" ]

A263423

[ 6, 961, 532620, 141086884, 34502512032, 9414955824400, 2581177525941432, 696932281399739400, 188117459428481340000, 5.0895976667736734e+22, 1.3771969942166582e+25, 3.725144577531136e+27 ]

[ "nonn" ]

A154640

[ 5, 5, 20, 60, 210, 690, 3330 ]

[ "hard", "more", "nonn" ]

A278548

[ 0, 70, 1531, 25402, 385040, 4880813, 50476458, 435272199, 3222371162, 21002624643, 122940347621, 656384657007, 3235421775340, 14866063786408, 64169850484506, 261881056692205, 1015819011059751, 3761887253493383 ]

[ "nonn" ]

A035440

[ 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 2, 1, 0, 1, 1, 2, 3, 2, 2, 1, 2, 3, 5, 5, 4, 3, 3, 5, 8, 8, 8, 6, 6, 8, 12, 13, 14, 13, 12, 13, 17, 20, 23, 23, 22, 21, 26, 30, 36, 38, 38, 37, 40, 45, 53, 59, 62, 61,...

[ "nonn" ]

A299234

[ 2, 4, 7, 9, 11, 15, 16, 19, 20, 23, 24, 31, 32, 33, 34, 39, 40, 41, 42, 47, 48, 49, 50, 63, 64, 65, 66, 67, 68, 69, 70, 79, 80, 81, 82, 83, 84, 85, 86, 95, 96, 97, 98, 99, 100, 101, 102, 127, 128, 129, 130, 131, ...

[ "nonn", "easy" ]

A228075

[ 3, 5, 7, 8, 11, 17, 21, 27, 29, 33, 39, 41, 47, 53, 57, 59, 63, 69, 71, 77, 81, 83, 87, 89, 93, 95, 97, 98, 113, 117, 119, 123, 137, 141, 143, 147, 161, 171, 173, 177, 179, 189, 191, 203, 213, 227, 231, 239, 243, 249, ...

[ "nonn", "base" ]

A024431

[ 1, 2, 6, 8, 18, 21, 44, 52, 106, 115, 232, 243, 488, 502, 1006, 1024, 2050, 2071, 4144, 4166, 8334, 8358, 16718, 16743, 33488, 33515, 67032, 67060, 134122, 134151, 268304, 268334, 536670, 536702, 1073406, 1073439, 2146880, 2146915, 4293832 ...

[ "nonn", "nice", "easy" ]

A101009

[ 2, 5, 17, 29, 87, 92, 153, 176, 227, 572, 896, 980, 1415, 1449, 3365, 4931, 5193, 13478, 18608, 23345, 51423, 74675, 80570 ]

[ "nonn", "hard", "more", "less" ]

A176700

[ 1, 1, 1, 1, 3, 1, 1, 5, 5, 1, 1, 14, 16, 14, 1, 1, 44, 55, 55, 44, 1, 1, 146, 187, 196, 187, 146, 1, 1, 504, 647, 686, 686, 647, 504, 1, 1, 1786, 2287, 2428, 2458, 2428, 2287, 1786, 1, 1, 6449, 8232, 8731, 8863, 8863...

[ "nonn", "tabl", "easy" ]

A345523

[ 627, 768, 838, 845, 857, 864, 874, 881, 894, 900, 920, 937, 950, 955, 962, 969, 976, 981, 983, 990, 1002, 1009, 1011, 1016, 1027, 1046, 1053, 1054, 1060, 1061, 1063, 1072, 1079, 1089, 1096, 1098, 1102, 1105, 1107, 1109, 1115, 1117, ...

[ "nonn" ]

A060707

[ 3, 8, 29, 44, 0, 47, 25, 53, 7, 24, 57, 36, 17, 43, 4, 29, 7, 10, 3, 41, 17, 52, 36, 12, 14, 36, 44, 51, 50, 15, 33, 7, 23, 59, 9, 13, 48, 22, 12, 21, 45, 22, 56, 47, 39, 44, 28, 37, 58, 23, 21, 11, 56, 33, 2...

[ "base", "cons", "nonn" ]

A082828

[ 1, 212, 3443, 56765, 89101110198, 1314151617161514200, 1.8192021222322212e+22, 2.425262728293039e+26, 3.1323334353637384e+30, 3.9404142444546476e+34 ]

[ "base", "easy", "nonn" ]

A192849

[ 0, 0, 24, 240, 1080, 3360, 8400, 18144, 35280, 63360, 106920, 171600, 264264, 393120, 567840, 799680, 1101600, 1488384, 1976760, 2585520, 3335640, 4250400, 5355504, 6679200, 8252400, 10108800, 12285000, 14820624, 17758440, 21144480 ]

[ "nonn", "easy" ]

A157793

[ 0, 1, 1, 3, 2, 6, 6, 11, 8, 15, 15, 25, 21, 29, 29, 41, 33, 44, 43, 61, 53, 66, 67, 89, 76, 88, 85, 107, 96, 112, 112, 139, 119, 135, 130, 161, 144, 165, 166, 205, 180, 197, 191, 227, 209, 235, 237, 283, 250, 267, 25...

[ "nonn", "base" ]

A376520

[ 2, 3, 8, 22, 32, 42, 28, 259, 91, 141, 172, 242, 341, 400, 556, 692, 198, 1119, 3126, 2072, 1779, 1737, 7596, 2913, 3246, 2101, 3598, 7651, 4383, 4294, 3457, 8284, 14220, 11986, 15101, 3204, 32808, 18217, 16273, 42990, 22303, 37037, ...

[ "nonn" ]

A124844

[ 1, 1, 2, 1, 4, -1, 1, 6, -3, 3, 1, 8, -6, 12, -4, 1, 10, -10, 30, -20, 7, 1, 12, -15, 60, -60, 42, -11, 1, 14, -21, 105, -140, 147, -77, 18, 1, 16, -28, 168, -280, 392, -308, 144, -29, 1, 18, -36, 252, -504, 882, -...

[ "sign", "easy", "tabl" ]

A250963

[ 10588744, 8862302446, 7555575891628, 6395621652233739, 5432045141123490000, 4.6331493184531165e+21, 3.95473236047743e+24, 3.3729134838144993e+27, 2.8751781157942617e+30 ]

[ "nonn" ]

A257420

[ 2616, 7652, 30309, 119393, 403951, 1293242, 4098078, 12497488, 37528750, 111339861, 326552920, 949466125, 2746182574, 7900552664, 22633690594, 64617935573, 183950154022, 522353720305, 1480269737481, 4187439072469 ]

[ "nonn" ]

A274726

[ 122, 1536, 5728, 66132, 771300, 8960464, 105328812, 1237030912, 14505195904, 170291855288, 1998101079148, 23450606174376, 275190816259724, 3229562907115528, 37899889658769384, 444774756528884100 ]

[ "nonn" ]

A226109

[ 15, 105, 1485, 18915, 666435, 2143485, 4174605, 10059855, 10440165, 28196295, 95295915, 124591005, 155064855, 171023265, 206258205, 298400235, 311737965, 347701635, 389470095, 459332895, 460424685, 498948255, 526517475, 537575655, 615496155, 645500415, 885763005, ...

[ "nonn" ]

A091409

[ 1, 3, 9, 220 ]

[ "nonn" ]

A224108

[ 1, 56, 184, 248, 376, 504, 568, 632, 672, 824, 864, 1016, 1208, 1248, 1336, 1528, 1592, 1656, 1784, 1824, 1912, 2016, 2104, 2168, 2232, 2488, 2688, 2872, 2936, 2976, 3064, 3360, 3384, 3448, 3512, 3552, 3704, 3832, 3896, 3968, 4024, 41...

[ "nonn" ]

A302254

[ 1, 1, 2, 4, 4, 4, 4, 4, 8, 8, 16, 16, 32, 32, 64, 64, 128, 128, 256, 256, 512, 512, 1024, 1024, 2048, 2048, 4096, 4096, 8192, 8192, 16384, 16384, 32768, 32768, 65536, 65536, 131072, 131072, 262144, 262144, 524288, 524288, 1048576, ...

[ "nonn", "easy" ]

A079274

[ 1, 0, 3, 4, 14, 18, 65, 82, 253, 378, 953, 1460, 3667, 5480, 12917, 20582, 45130, 71970, 156510, 248020, 524446, 846962, 1733252, 2806484, 5702101, 9186010, 18375867, 29872508, 58760991, 95500008, 186871472, 302966474, 587603027, 956192230, 1836704...

[ "easy", "nonn" ]

A251530

[ 31361437, 4060878845, 629694824303, 85453027245665, 11726484486571600, 1671396405843418000, 239415740786170800000, 3.4268623489221567e+22, 4.92679273222313e+24, 7.101745715454152e+26 ]

[ "nonn" ]

A098108

[ 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0...

[ "nonn", "easy", "mult" ]

A082299

[ 1, 2, 3, 4, 5, 1, 7, 2, 3, 1, 11, 1, 13, 1, 1, 8, 17, 2, 19, 1, 1, 1, 23, 3, 5, 1, 9, 1, 29, 10, 31, 2, 1, 1, 1, 2, 37, 1, 1, 1, 41, 6, 43, 1, 1, 1, 47, 1, 7, 2, 1, 1, 53, 1, 1, 1, 1, 1, 59, 12, 6...

[ "nonn" ]

A134639

[ 6, 36, 65, 245, 516 ]

[ "nonn", "more" ]

A347318

[ 1, 3, 4, 6, 6, 8, 9, 11, 12, 13, 15, 17, 19, 23, 29, 36, 43, 60, 91, 150, 265, 493, 946, 1848, 3649, 7246, 14437, 28814, 57564, 115059, 230044, 460010, 919938, 1839789, 3679485, 7358874, 14717646, 29435186, 58870261, 117740405, 23548068...

[ "nonn" ]

A001541

[ 1, 3, 17, 99, 577, 3363, 19601, 114243, 665857, 3880899, 22619537, 131836323, 768398401, 4478554083, 26102926097, 152139002499, 886731088897, 5168247530883, 30122754096401, 175568277047523, 1023286908188737, 5964153172084899, 34761632124320656 ]

[ "nonn", "easy", "nice" ]

A051804

[ 2, 12, 20, 21, 26, 34, 37, 43, 45, 54, 59, 62, 69, 73, 95, 96, 102, 112, 120, 121, 126, 134, 137, 143, 145, 154, 159, 162, 169, 173, 195, 196, 200, 201, 206, 210, 211, 216, 223, 225, 232, 239, 252, 260, 261, 268, 278, 279,...

[ "nonn", "easy", "base" ]

A126244

[ 6, 120, 39916800, 355687428096000, 8.841761993739702e+30, 3.345252661316381e+49, 1.3868311854568984e+80 ]

[ "easy", "nonn" ]

A186462

[ 16, 21, 21, 42, 30, 42, 61, 51, 51, 61, 106, 88, 111, 88, 106, 151, 128, 162, 162, 128, 151, 245, 197, 270, 309, 270, 197, 245, 359, 292, 362, 449, 449, 362, 292, 359, 567, 457, 590, 673, 797, 673, 590, 457, 567, 840, 688, ...

[ "nonn", "tabl" ]

A235876

[ 21, 105, 453, 1833, 7221, 28185, 109893, 429513, 1684821, 6633465, 26204133, 103802793, 412120821, 1639113945 ]

[ "nonn" ]

A346924

[ 1, 0, 0, 0, 0, 1, 15, 175, 1960, 22449, 269577, 3430790, 46480830, 671260876, 10329270952, 169125055736, 2940784282800, 54182845939104, 1055291277366108, 21674715826211532, 468366193441002560, 10624074081842024000, 252432685158931960000, 6.270222495850553e+21 ]

[ "nonn" ]

A002288

[ 0, 1, -8, 12, 64, -210, -96, 1016, -512, -2043, 1680, 1092, 768, 1382, -8128, -2520, 4096, 14706, 16344, -39940, -13440, 12192, -8736, 68712, -6144, -34025, -11056, -50760, 65024, -102570, 20160, 227552, -32768, 13104, -117648, -213360, -130752...

[ "sign", "easy", "nice", "mult" ]

A083711

[ 1, 1, 1, 2, 1, 4, 1, 5, 3, 7, 1, 14, 1, 13, 8, 20, 1, 33, 1, 40, 14, 44, 1, 85, 6, 79, 25, 117, 1, 181, 1, 196, 45, 233, 17, 389, 1, 387, 80, 545, 1, 750, 1, 839, 165, 1004, 1, 1516, 12, 1612, 234, 2040, 1, 276...

[ "nonn", "easy" ]

A109307

[ 11, 16, 27, 38, 44, 45, 52, 55, 56, 57, 63, 64, 68, 74, 75, 76, 77, 81, 112, 113, 114, 124, 134, 141, 142, 143, 148, 151, 152, 170, 180, 181, 182, 183, 184, 191, 192, 209, 214, 215, 216, 227, 240, 251, 252, 255, 256, 263, ...

[ "nonn" ]

A290176

[ 7, 38, 41, 57, 68, 117, 239, 268, 515, 682, 882, 1068, 1393, 1744, 1958, 1985, 2072, 2928, 2943, 3141, 4005, 4030, 4443, 5357, 5604, 5818, 6072, 6948, 8119, 8827, 9210, 9466, 10133, 11018, 11389, 12238, 12943, 13545, 13807, 14256, 14557...

[ "nonn", "base" ]

A041441

[ 1, 2, 3, 11, 58, 69, 472, 541, 3177, 10072, 13249, 36570, 1110349, 2257268, 3367617, 12360119, 65168212, 77528331, 530338198, 607866529, 3569670843, 11316879058, 14886549901, 41089978860, 1247585915701, 2536261810262, 3783847725963, 13887804988151 ]

[ "nonn", "frac", "easy" ]

A152808

[ 1, 1, 4, 10, 29, 93, 310, 1106, 4205, 16912, 71858, 321921, 1516429, 7493126, 38758968, 209453249, 1180293354, 6923457745, 42206892713, 267002169884, 1750266527588, 11873506488390, 83253781992093, 602667751464027 ]

[ "nonn" ]

A030735

[ 1, 5, 7, 21, 50, 51, 52, 142, 166, 219, 243, 252, 255, 261, 299, 327, 330, 331, 337, 340, 374, 376, 381, 384, 427, 430, 476, 479, 524, 528, 531, 586, 589, 628, 639, 647, 650, 696, 702, 704, 710, 713, 777, 780, 849 ]

[ "nonn" ]

A243659

[ 1, 1, 5, 34, 267, 2279, 20540, 192350, 1853255, 18252079, 182924645, 1859546968, 19127944500, 198725331588, 2082256791048, 21979169545670, 233495834018591, 2494624746580655, 26786319835972800, 288915128642169300, 3128814683222599000, 34007373443388860000 ]

[ "nonn", "easy" ]

A037006

[ 11, 18, 26, 34, 35, 52, 67, 74, 78, 81, 84, 88, 101, 105, 107, 113, 124, 134, 147, 150, 152, 161, 171, 189, 197, 204, 205, 222, 228, 233, 236, 255, 267, 279, 305, 317, 318, 322, 323, 334, 352, 372, 373, 383, 425, 431, 447, ...

[ "base", "nonn" ]

A106150

[ 0, 0, 0, 0, 3, 22, 82, 218, 476, 914, 1603, 2628, 4089, 6102, 8800, 12334, 16874, 22610, 29753, 38536, 49215, 62070, 77406, 95554, 116872, 141746, 170591, 203852, 242005, 285558, 335052, 391062, 454198, 525106, 604469, 693008, 791483, 900694,...

[ "nonn", "easy" ]

A385535

[ 9, 9, 0, 5, 0, 5, 6, 4, 1, 6, 3, 1, 5, 6, 8, 8, 4, 3, 2, 5, 7, 2, 9, 1, 6, 6, 3, 7, 7, 8, 8, 9, 6, 3, 9, 3, 2, 7, 0, 0, 3, 5, 8, 8, 4, 7, 6, 4, 1, 1, 5, 7, 9, 1, 4, 5, 2, 5, 8, 0, 3, 3, 7, 2...

[ "nonn", "cons", "easy" ]

A090230

[ 12, 99, 169, 395, 499, 595, 606, 693, 824, 827, 840, 940, 1282, 1291, 1384, 1594, 1705, 1742, 1905, 2020, 2060, 2153, 2257, 2302, 2359, 2367, 2507, 2546, 2557, 2710, 2724, 2791, 2832, 2857, 3036, 3051, 3280, 3309, 3429, 3497, 3518, 35...

[ "nonn", "base" ]

A326796

[ 2, -4, -154, 1336, 139402, -2516812, -531298962, 16291452784, 5792759106578, -269619415772564, -144868583759258000, 9514326895639572000, 7.196653593954009e+21, -6.337075763743425e+23, -6.418617363449033e+26, 7.297033668669371e+28, 9.535063173785141e+31, -1.359360175917408e+34, -2...

[ "sign" ]

A176016

[ 1, 1, 4, 5, 4, 9, 7, 2, 2, 4, 3, 6, 7, 9, 0, 2, 8, 1, 4, 1, 9, 6, 5, 4, 4, 2, 3, 3, 2, 9, 7, 0, 6, 6, 6, 0, 1, 8, 0, 5, 4, 8, 6, 9, 5, 0, 8, 8, 1, 9, 3, 1, 8, 0, 4, 4, 3, 1, 2, 6, 2, 2, 9, 4...

[ "cons", "nonn" ]

A272172

[ 1, 3, 1, 4, 3, 1, 7, 4, 3, 1, 6, 7, 4, 3, 1, 12, 6, 7, 4, 3, 1, 8, 12, 6, 7, 4, 3, 1, 15, 8, 12, 6, 7, 4, 3, 1, 13, 15, 8, 12, 6, 7, 4, 3, 1, 18, 13, 15, 8, 12, 6, 7, 4, 3, 1, 12, 18, 13, 15, 8, 1...

[ "nonn", "tabl" ]

A062630

[ 2, 3, 11, 31, 349, 379, 14669, 19001, 49957, 68909 ]

[ "nonn", "hard" ]

A109944

[ 1, 20, 30, 41, 50, 61, 70, 83, 97, 101, 110, 127, 130, 149, 151, 163, 170, 181, 190, 2003, 211, 223, 230, 241, 251, 263, 271, 281, 290, 307, 310, 3203, 331, 347, 353, 367, 370, 383, 397, 401, 410, 421, 430, 443, 457, 461, 47...

[ "base", "easy", "nonn" ]

A052935

[ 2, 2, 4, 9, 16, 32, 65, 128, 256, 513, 1024, 2048, 4097, 8192, 16384, 32769, 65536, 131072, 262145, 524288, 1048576, 2097153, 4194304, 8388608, 16777217, 33554432, 67108864, 134217729, 268435456, 536870912, 1073741825, 2147483648 ]

[ "easy", "nonn" ]

A357460

[ 72, 108, 120, 168, 180, 252, 420, 528, 560, 624, 1188, 1224, 1368, 1400, 1404, 1632, 1656, 1824, 1836, 1960, 1980, 2040, 2052, 2088, 2208, 2232, 2280, 2340, 2484, 2664, 2760, 2772, 2784, 2856, 2952, 2976, 3060, 3096, 3132, 3192, 3200, ...

[ "nonn" ]

A011766

[ 36159, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36525, 36514, 36524, 36524, 36525, 36524, 36524, 36524, 36525, 36524, 36524, 36524, 36525, 36524, 36524, 36524, 36525 ]

[ "nonn" ]

A214733

[ 0, 1, -1, -2, 5, 1, -16, 13, 35, -74, -31, 253, -160, -599, 1079, 718, -3955, 1801, 10064, -15467, -14725, 61126, -16951, -166427, 217280, 282001, -933841, 87838, 2713685, -2977199, -5163856, 14095453, 1396115, -43682474, 39494129, 91553293, -2...

[ "sign", "easy" ]

A290790

[ 1, 6, 32, 590, 21555, 1598353, 288676112, 111452109386 ]

[ "nonn", "more" ]

A238189

[ 1, 2, 1, 1, 2, 2, 1, 4, 7, 3, 1, 1, 4, 13, 10, 4, 1, 6, 23, 33, 22, 6, 1, 1, 6, 34, 68, 72, 30, 6, 1, 8, 49, 139, 204, 145, 54, 8, 1, 1, 8, 65, 230, 467, 476, 269, 70, 9, 1, 10, 85, 377, 961, 1348, 1080, 47...

[ "tabf", "nonn" ]

A329253

[ 1, 4, 15, 52, 190, 680, 2495, 9164, 33980 ]

[ "nonn", "more" ]

A140879

[ 1, 1, 1, 2, 1, 5, 1, 20, 1, 139, 1, 1777, 1, 42295, 1, 1888140, 1, 158903233, 1, 25355226287, 1, 7707419775769, 1 ]

[ "nonn" ]

A349291

[ 1, 2, 13, 139, 1775, 24886, 370099, 5733304, 91518691, 1494815215, 24862931821, 419674102147, 7170713484877, 123783319369420, 2155542171446485, 37820343323942570, 667957770644685800, 11865421405897930000, 211856917750711550000, 3.80004025501788e+21 ]

[ "nonn" ]

A252307

[ 1048, 1031, 1370, 1992, 3171, 5056, 7625, 12412, 19904, 30526, 49974, 80432, 123996, 203444, 327856, 506772, 832064, 1341188, 2076284, 3409168, 5493844, 8513612, 13975408, 22511348, 34911340, 57286320, 92228020, 143118508, 234743088 ]

[ "nonn" ]

A385771

[ 7, 787, 877, 887, 7877, 8087, 8707, 8807, 8887, 70877, 78007, 78707, 78787, 78877, 78887, 80077, 80777, 87877, 87887, 88007, 88807, 700087, 700877, 707887, 708007, 777787, 777877, 778777, 780707, 780877, 780887, 787777, 787807, 788077, 788087, 80...

[ "nonn", "base", "easy" ]

A093415

[ 1, 1, 1, 1, 3, 1, 1, 3, 2, 1, 1, 1, 1, 5, 1, 1, 3, 2, 5, 3, 1, 1, 3, 1, 5, 3, 7, 1, 1, 1, 2, 5, 1, 7, 4, 1, 1, 3, 1, 1, 3, 7, 2, 9, 1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 1, 1, 1, 1, 5, 1, 7, 1, 3, 5...

[ "easy", "nonn", "tabl", "frac" ]

A286818

[ 1, 11, 11, 1110, 111, 111110, 1111, 11111110, 11011, 1111111100, 110011, 111111111110, 1111111, 11111111100000, 11011111, 1111111111111000, 111110111, 111111111111111000, 1111110111, 11111111111111110000, 11001111111, 1.1111111111111102e+21, 110111100110 ]

[ "nonn", "easy" ]

A193126

[ 1, 5, 392, 130691, 116268789, 217138318913, 735586507699560, 4097541199291485000, 3.497863055510454e+22, 4.339563213126275e+26, 7.507648403517785e+30, 1.7522435912086304e+35, 5.3695362325359584e+39 ]

[ "nonn" ]

A351686

[ 13, 23, 31, 41, 53, 61, 73, 97, 103 ]

[ "nonn", "more" ]

A119645

[ 6, 385, 2800733, 297194980009, 1.3347353024983933e+21, 1.1619338480236378e+28, 1.0619210758832202e+40, 8.090715701006349e+47 ]

[ "easy", "nonn" ]

A207425

[ 40, 1600, 20550, 241087, 3210938, 39698733, 474552171, 5755114104, 69609375870, 836438494500, 10061632597765, 121113950382680, 1456404024212421, 17511407393280396, 210603058946646000, 2532582001420108300 ]

[ "nonn" ]

A114850

[ 256, 46656, 387420489, 10000000000, 11112006825558016, 437893890380859400, 5.842587018385982e+27, 3.4142787736421956e+29, 8.881784197001253e+34 ]

[ "easy", "nonn" ]

A352223

[ 18, -5, 107, -125, 712, -1152, -1719, -865, -5370, -7870, 2518, -963, -29949, -20030, 111491, 87797, 261536, 2274319, -140357, -3938794, -139674130, -792131385 ]

[ "sign", "more" ]