id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A276597
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 19, 10, 39, 49, 59, 69, 79, 89, 102, 199, 109, 106, 13, 599, 103, 799, 139, 108, 149, 2999, 104, 4999, 169, 12, 179, 8999, 105, 100, 289, 139, 389, 10000, 106, 79999, 13, 159, 689, 299999, 107, ...
[ "nonn", "base", "easy" ]
A094634
[ 1, 3, 4, 5, 4, 5, 5, 2, 6, 7, 5, 6, 6, 7, 7, 6, 7, 7, 7, 6, 7, 7, 7, 8, 8, 7, 8, 8, 8, 7, 8, 8, 8, 9, 9, 8, 9, 9, 8, 9, 9, 9, 10, 9, 8, 9, 9, 9, 10, 9, 10, 10, 9, 2, 10, 10, 9, 10, 10, 10, 11, 1...
[ "nonn" ]
A062909
[ 40, 48, 80, 84, 216, 236, 256, 276, 296, 400, 408, 420, 428, 440, 448, 460, 468, 480, 488, 612, 632, 652, 672, 692, 800, 804, 820, 824, 840, 844, 860, 864, 880, 884, 2100, 2104, 2108, 2116, 2120, 2124, 2128, 2132, 2136, 2140, 21...
[ "nonn", "base", "easy" ]
A244793
[ 12, 41, 268, 941, 2424, 5101, 7730, 14519, 26882, 47381, 54282, 93567, 138214, 207081, 288862, 319535, 489922, 628893, 878082, 1128849, 1220884, 1640461, 1997876, 2688937, 3290036, 3680517, 4461044, 5245231, 6537106, 7081377, 8727400 ]
[ "nonn" ]
A315074
[ 1, 5, 9, 15, 21, 22, 31, 35, 37, 46, 49, 53, 60, 64, 67, 76, 78, 81, 93, 91, 96, 108, 106, 110, 123, 122, 123, 139, 136, 138, 154, 150, 154, 168, 165, 168, 184, 179, 182, 201, 192, 197, 216, 207, 211, 231, 223, 224, 247,...
[ "nonn" ]
A018851
[ 0, 1, 5, 6, 2, 23, 8, 27, 9, 3, 10, 34, 11, 37, 12, 39, 4, 42, 43, 14, 45, 46, 15, 48, 49, 5, 51, 52, 17, 54, 55, 56, 18, 58, 59, 188, 6, 61, 62, 63, 20, 203, 65, 66, 21, 213, 68, 69, 22, 7, 71, 72, 23, 73, 7...
[ "nonn", "base", "look" ]
A107848
[ 2, 4, 4, 8, 8, 24, 16, 48, 40, 144, 64, 336, 128, 864, 416, 1728, 512, 8304, 1024, 10656, 4032, 31104, 4096, 116256, 9248, 186624, 40000, 374976, 32768, 3537024, 65536, 2239488 ]
[ "nonn" ]
A013923
[ 3, 16, 250, 8496, 540568, 61672192, 12608406288, 4697459302400, 3256012245850496, 4276437400678312000, 1.0796431791679078e+22, 5.295536445842885e+25, 5.085112310625505e+29, 9.611398894866377e+33 ]
[ "nonn" ]
A017279
[ 0, 100000000000, 204800000000000, 17714700000000000, 419430400000000000, 4882812500000000000, 36279705600000000000, 197732674300000000000, 858993459200000000000, 3.1381059609e+21, 1e+22 ]
[ "nonn", "easy" ]
A329121
[ 0, 2, 3, 16, 73, 18, 7, 28, 117, 72, 7, 2, 7, 2, 33, 10, 29, 0, 21, 10, 191, 0, 1133, 30, 79, 20, 81, 58, 19, 2, 57, 116, 77, 108, 79, 48, 97, 40, 1043, 42, 47, 86, 13, 52, 149, 82, 47, 56, 9, 80, 41, 42, 61, 8...
[ "nonn", "base" ]
A212106
[ 0, 0, 7, 33, 96, 241, 498, 933, 1579, 2520, 3828, 5578, 7866, 10815, 14509, 19044, 24603, 31294, 39255, 48645, 59599, 72345, 87051, 103897, 123060, 144792, 169291, 196776, 227445, 261580, 299358, 341178, 387196, 437736, 493050 ]
[ "nonn" ]
A110148
[ 0, 0, 0, 0, 0, 0, 0, 0, 2, 10, 38, 127, 408, 1375, 4783, 16645, 58059, 203808, 722575 ]
[ "nonn", "hard", "more" ]
A273876
[ 0, 1, 3, 2, 5, 4, 6, 8, 7, 10, 9, 12, 100, 11, 14, 16, 13, 18, 20, 22, 15, 24, 26, 28, 30, 17, 32, 34, 102, 19, 36, 38, 40, 42, 44, 21, 46, 48, 50, 104, 23, 52, 54, 56, 58, 60, 62, 25, 64, 66, 68, 70, 72, 74, ...
[ "nonn", "base" ]
A215186
[ 2, 48, 328, 3216, 18940, 102958, 437416, 1745476, 6074164, 19546414, 57274236, 158706286, 408770608, 1005752468, 2347176012, 5262852883, 11312035800, 23548549548, 47322841540, 92544936670, 175876801036, 326378292388 ]
[ "nonn" ]
A370072
[ 1, 1, 1, 1, 2, 1, 1, 3, 6, 1, 1, 4, 14, 14, 1, 1, 5, 26, 73, 50, 1, 1, 6, 42, 226, 541, 227, 1, 1, 7, 63, 558, 3127, 6962, 1627, 1 ]
[ "nonn", "tabl", "more" ]
A223608
[ 19, 33, 105, 33705, 33624064, 2199041081344, 36893488220433550000 ]
[ "nonn", "more" ]
A053001
[ 3, 7, 13, 23, 31, 47, 61, 79, 97, 113, 139, 167, 193, 223, 251, 283, 317, 359, 397, 439, 479, 523, 571, 619, 673, 727, 773, 839, 887, 953, 1021, 1087, 1153, 1223, 1291, 1367, 1439, 1511, 1597, 1669, 1759, 1847, 1933, 2017, 2113,...
[ "nonn", "easy", "nice" ]
A275539
[ 1, 2, 4, 12, 36, 160, 810, 5376, 41160, 366336, 3638250, 39959040, 479126340, 6227619840, 87180183090, 1307684044800, 20922822320400, 355687603568640, 6402374325997650, 121645103938928640, 2432902021271221000, 51090942249743155000, 1.1240007280800925e+21 ]
[ "nonn", "easy" ]
A040862
[ 29, 1, 6, 2, 14, 2, 6, 1, 58, 1, 6, 2, 14, 2, 6, 1, 58, 1, 6, 2, 14, 2, 6, 1, 58, 1, 6, 2, 14, 2, 6, 1, 58, 1, 6, 2, 14, 2, 6, 1, 58, 1, 6, 2, 14, 2, 6, 1, 58, 1, 6, 2, 14, 2, 6, 1, 58, 1, 6, 2, 1...
[ "nonn", "cofr", "easy" ]
A055142
[ 1, 0, -2, -8, -36, -224, -1880, -19872, -251888, -3712256, -62286624, -1171487360, -24402416192, -557542291968, -13861636770176, -372514645389824, -10759590258589440, -332386419622387700 ]
[ "sign" ]
A313612
[ 1, 5, 10, 14, 20, 24, 29, 34, 38, 44, 48, 54, 58, 63, 68, 73, 78, 82, 88, 92, 98, 102, 107, 112, 117, 122, 126, 132, 135, 142, 146, 150, 156, 160, 166, 169, 176, 179, 185, 190, 193, 200, 203, 210, 213, 219, 223, 229, 234...
[ "nonn" ]
A268970
[ 768, 40176, 1770048, 72081792, 2799406656, 105294777120, 3870355944960, 139818682627488, 4983158127443904, 175684152567641180, 6139001133769998000, 212930705454132300000, 7.339160588604264e+21, 2.515992714366258e+23 ]
[ "nonn" ]
A299626
[ 2, 0, 9, 9, 8, 1, 7, 7, 8, 9, 9, 2, 8, 0, 7, 9, 9, 1, 9, 9, 7, 7, 3, 9, 4, 1, 4, 1, 1, 0, 5, 7, 9, 5, 8, 0, 9, 1, 7, 8, 9, 3, 3, 8, 8, 7, 4, 1, 2, 6, 8, 2, 9, 0, 5, 8, 6, 5, 7, 4, 3, 1, 6, 6...
[ "nonn", "cons", "easy" ]
A143884
[ 1, 2, 3, 7, 16, 41, 121, 434, 1581, 7325, 35854, 219307, 1397579, 11370922 ]
[ "nonn", "more", "hard" ]
A333244
[ 11, 127, 277, 1063, 2221, 3001, 4397, 5381, 7193, 9319, 10631, 12763, 15299, 15823, 21179, 22093, 24859, 30133, 33967, 37217, 38833, 40819, 43651, 55351, 57943, 60647, 66851, 68639, 77431, 80071, 84347, 87803, 90023, 98519, 101701, 103069, 1251...
[ "nonn" ]
A092347
[ 1, 3, 17, 42, 101, 158, 314, 402, 685, 861, 1282, 1466, 2282, 2382, 3370, 3812, 5053, 5222, 7307, 7242, 9786, 10164, 12634, 12722, 17290, 16433, 20674, 21300, 26218, 25262, 33124, 30786, 38877, 38564, 45730, 44692, 57263, 52062, 63610, 63...
[ "nonn", "easy" ]
A366227
[ 1, 1, 6, 138, 8648, 1272948, 424058592, 334836466656, 728593565874816, 5632989888855721000, 1.8453976085509762e+23, 2.5027477244647423e+28, 1.3206715998089387e+34, 2.6431031766456354e+40, 1.9909139987750387e+47 ]
[ "nonn" ]
A232253
[ 1287, 96999, 7258599, 544777651, 40896843985, 3070212041183, 230487644229167, 17303223331864432, 1298991725349537000, 97518218023627050000, 7.320911028394528e+21, 5.49597186787144e+23 ]
[ "nonn" ]
A123541
[ 2, 1, 1, 1, 3, 1, 4, 1, 1, 2, 7, 2, 7, 1, 1, 4, 11, 3, 9, 2, 4, 4, 11, 0, 2, 4, 4, 11, 11, 6, 14, 2, 5, 7, 6, 8, 16, 10, 4, 15, 13, 9, 13, 10, 5, 9, 14, 5, 9, 9, 11, 10, 17, 6, 9, 11, 13, 19, 20, 11...
[ "nonn" ]
A185782
[ 1, 3, 0, 5, 2, 0, 7, 4, 2, 0, 9, 6, 4, 2, 0, 11, 8, 6, 4, 2, 0, 13, 10, 8, 6, 4, 2, 0, 15, 12, 10, 8, 6, 4, 2, 0, 17, 14, 12, 10, 8, 6, 4, 2, 0, 19, 16, 14, 12, 10, 8, 6, 4, 2, 0, 21, 18, 16, 14, 12...
[ "nonn", "tabl" ]
A038577
[ 1, 3, 6, 12, 20, 36, 58, 100, 160, 268, 430, 708, 1140, 1860, 3002, 4876, 7880, 12772, 20654, 33444, 54100, 87564, 141666, 229252, 370920, 600196, 971118, 1571340, 2542460, 4113828, 6656290, 10770148, 17426440, 28196620, 45623062, 73819716, 119...
[ "nonn", "walk", "easy" ]
A115278
[ 1, 1, 1, 16, 29, 256, 14422, 49141, 490429, 10758400, 1797335306, 9458619391, 133756636598, 2528529510391, 137864810180749, 53441183229799384, 410251032050409500, 7615997734377069000, 167055180095977700000, 6.74181916585122e+21, 7.388633359019721e+23 ]
[ "nonn" ]
A252362
[ 130, 152, 282, 658, 1482, 3188, 6954, 15432, 34120, 74978, 164806, 363086, 800136, 1761810, 3878444, 8540376, 18808306, 41417594, 91200010, 200823828, 442228226, 973812608, 2144371120, 4721986338, 10398032398, 22896956750, 50420107128 ]
[ "nonn" ]
A209050
[ 9, 1, 9, 1, 0, 6, 6, 5, 7, 2, 9, 3, 5, 8, 8, 4, 2, 2, 0, 4, 1, 3, 6, 1, 7, 1, 4, 8, 9, 6, 7, 4, 2, 7, 0, 5, 7, 5, 5, 6, 3, 0, 7, 3, 4, 0, 2, 0, 3, 5, 1, 1, 4, 7, 3, 9, 8, 5, 0, 9, 2, 4, 2, 8...
[ "nonn", "easy", "cons" ]
A041739
[ 1, 1, 3, 4, 7, 11, 18, 47, 65, 2517, 2582, 7681, 10263, 17944, 28207, 46151, 120509, 166660, 6453589, 6620249, 19694087, 26314336, 46008423, 72322759, 118331182, 308985123, 427316305, 16547004713, 16974321018, 50495646749, 67469967767, 117965614516 ]
[ "nonn", "frac", "easy" ]
A069540
[ 5, 50, 140, 230, 320, 410, 500, 1040, 1130, 1220, 1310, 1400, 2030, 2120, 2210, 2300, 3020, 3110, 3200, 4010, 4100, 5000, 10040, 10130, 10220, 10310, 10400, 11030, 11120, 11210, 11300, 12020, 12110, 12200, 13010, 13100, 14000, 20030, 20120 ...
[ "base", "nonn" ]
A003475
[ 1, 1, 1, 0, 0, 0, -1, -1, 0, -1, -1, 0, -1, 0, 1, -1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, -1, 0, 0, 0, 1, -1, -1, -1, 0, 0, -1, 0, -1, 0, 0, -1, -1, -1, 1, 0, -1, 0, 0, 0, 1, 0, -1, 0, 0, 1, ...
[ "sign" ]
A297101
[ 128, 11264, 602723, 40369420, 2685011300, 175908737504, 11598374165583, 764506387012021, 50370121334317960, 3319307861832310000, 218734610711895970000, 1.441391709652108e+22, 9.49837170817984e+23 ]
[ "nonn" ]
A339255
[ 1, 2, 3, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2...
[ "base", "nonn" ]
A086231
[ 1, 5, 1, 6, 3, 8, 6, 0, 5, 9, 1, 5, 1, 9, 7, 8, 0, 1, 8, 1, 5, 6, 0, 1, 2, 1, 5, 9, 6, 8, 1, 4, 2, 0, 7, 7, 9, 9, 5, 5, 3, 8, 7, 0, 4, 4, 4, 5, 2, 2, 6, 2, 6, 7, 6, 5, 6, 6, 9, 8, 0, 4, 6, 3...
[ "nonn", "cons" ]
A039530
[ 47, 135, 191, 279, 335, 423, 443, 455, 467, 491, 503, 515, 527, 539, 551, 563, 564, 565, 566, 568, 569, 570, 571, 572, 573, 574, 623, 711, 767, 855, 911, 999, 1055, 1143, 1199, 1287, 1343, 1431, 1487, 1575, 1587, 1599, 1611, 1620,...
[ "nonn", "base", "easy" ]
A099319
[ 0, 1, 3, 9, 3, 7, 4, 14, 61, 16, 35, 19, 41, 22, 22, 179, 97, 103, 109, 115, 115, 115, 121, 127, 65, 133, 45, 137, 143, 149, 155, 811, 817, 817, 817, 817, 847, 877, 877, 877, 907, 937, 967, 997, 997, 997, 1027, 1057, 268...
[ "nonn", "frac" ]
A323666
[ 1, 2, 10, 64, 498, 4544, 47272, 549448, 7032338, 98034816, 1475781592, 23821854808, 409932257560, 7483462406840, 144320890075608, 2929683071286416, 62402858556637970, 1390821290318306800, 32355429437927805000, 783919832399050600000, 1.974152922245118e+22, 5.1581386262403216...
[ "nonn" ]
A114610
[ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 8, 8, 5, 1, 0, 9, 0, 4, 1, 3, 8, 2, 5, 1, 5, 6, 2, 4, 3, 0, 7, 8, 8, 6, 9, 9, 9, 1, 1, 6, 7, 9, 6, 0, 8, 2, 6, 3, 8, 2, 8, 0, 4, 0, 1, 4, 7, 1, 1, 1, 6, 2...
[ "nonn", "cons" ]
A273163
[ 0, -2, -1, 2, 0, 2, -6, -4, 6, 6, -4, 2, 6, -10, -6, -6, 12, 2, 2, -12, 2, 8, 6, -6, 2, 6, 14, -6, 2, -6, 2, 0, 18, -4, -6, 20, -22, -10, 18, -6, -12, -10, -12, 26, 18, 8, -16, -10, -6, 14, -6, -24, 14, 0, -6...
[ "sign", "easy" ]
A074310
[ 2, 3, 5, 7, 75, 209, 589, 2401, 7429, 7938, 8671, 15876, 20480, 24696, 36288, 39690, 47628, 48384, 49392, 55566, 56448, 60401, 68107, 72576, 74088, 78750, 79380, 81648, 83317, 84672, 86436, 89401, 91854, 95256, 108864, 112896, 129654, 142884 ...
[ "base", "nonn" ]
A282367
[ 1, 10, 11, 1110, 11, 111110, 11, 11111110, 11, 1111110110, 10111, 111111100100, 111011, 11111111101110, 111011, 1111111111101010, 100101, 111111111101011000, 110111001, 11111111111111100000, 111011, 1.1111111111100012e+21, 11011100001 ]
[ "nonn", "easy" ]
A094644
[ 1, 1, 3, 1, 1, 3, 5, 4, 1, 1, 2, 2, 1, 7, 9, 1, 16, 1, 1, 1, 2, 6, 1, 2, 1, 6, 2, 59, 1, 1, 1, 3, 3, 3, 2, 1, 3, 5, 100, 1, 58, 1, 2, 1, 94, 1, 1, 2, 2, 10, 1, 2, 7, 1, 3, 4, 5, 3, 10, 1, 21, 1,...
[ "nonn", "cofr", "easy" ]
A132128
[ 1, 2, 4, 4, 5, 8, 7, 8, 9, 13, 11, 12, 13, 14, 19, 16, 17, 18, 19, 20, 26, 22, 23, 24, 25, 26, 27, 34, 29, 30, 31, 32, 33, 34, 35, 43, 37, 38, 39, 40, 41, 42, 43, 44, 53 ]
[ "nonn", "tabl" ]
A389767
[ 2, 3, 7, 13, 31, 211 ]
[ "nonn", "hard", "more" ]
A134777
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 1, 1, 1, 4, 5, 1, 1, 8, 9, 2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 3, 1, 3, 3, 4, 5, 6, 7, 8, 9, 4, 4, 4, 4, 4, 5, 4, 4, 8, 4, 5, 5, 5, 5, 5, 5, 5, 5, 8, 5, 6, 1, 6, 6...
[ "base", "easy", "nonn", "word" ]
A257149
[ 13504, 96680, 732482, 5449304, 39971674, 295114929, 2183417807, 16144616160, 119387730698, 882890101723, 6529665253371, 48291188396559, 357147674505523, 2641358506805251, 19534786074176850, 144473821838374980 ]
[ "nonn" ]
A118195
[ 1, 1, 3, 23, 411, 15771, 1353045, 252512065, 106798723795, 99080638950595, 208993838938550880, 968425792397232700000, 1.0208662119796587e+25, 2.3647296373526788e+29, 1.2462692176683506e+34 ]
[ "nonn" ]
A057493
[ 1, 3, 7, 9, 21, 27, 49, 63, 81, 111, 147, 171, 189, 203, 243, 333, 343, 441, 513, 567, 609, 729, 777, 999, 1029, 1143, 1197, 1323, 1421, 1539, 1701, 1791, 1827, 2187, 2331, 2401, 2943, 2997, 3087, 3249, 3429, 3591, 3969, 4107, 4...
[ "nonn" ]
A389077
[ -1, -2, -4, 3, -6, -6, -10, 10, 5, -10, -12, 28, -16, -18, -22, 39, -18, 46, -22, 34, -38, -22, -28, 90, 7, -30, 26, 46, -30, -18, -36, 118, -46, -34, -58, 177, -40, -42, -62, 110, -42, -42, -46, 52, 66, -54, -52, 316, 1...
[ "sign" ]
A265981
[ 1, 3, 1, 5, 23, 1, 11, 117, 123, 1, 26, 583, 1267, 809, 1, 55, 5554, 11573, 13894, 5274, 1, 119, 52555, 320641, 282056, 262258, 33923, 1, 263, 405165, 8061815, 40743954, 8935989, 3699605, 219807, 1, 573, 3187023, 133236904, 3698768651, ...
[ "nonn", "tabl" ]
A347880
[ 4, 5, 8, 14, 16, 20, 23, 25, 26, 30, 38, 41, 49, 51, 59, 62, 64, 66, 74, 77, 80, 86, 90, 92, 96, 102, 108, 113, 120, 122, 124, 127, 131, 134, 138, 143, 146, 149, 153, 158, 159, 164, 165, 167, 169, 174, 194, 196, 198, 2...
[ "nonn" ]
A379330
[ 1, 2, 10, 66, 500, 4112, 35702, 322114, 2990450, 28382486, 274151074, 2686200302, 26634199776, 266738477892, 2694291026378, 27416542767134, 280790643343716, 2892142875601024, 29939599990333390, 311334925950172600, 3250627732373638700, 34063930480000774000, 358149513590192...
[ "nonn" ]
A034731
[ 1, 2, 3, 7, 15, 46, 133, 436, 1433, 4878, 16797, 58837, 208013, 743034, 2674457, 9695281, 35357671, 129646266, 477638701, 1767268073, 6564120555, 24466283818, 91482563641, 343059672916, 1289904147339, 4861946609466 ]
[ "nonn" ]
A182668
[ 1, 27, 338, 2835, 18566, 101955, 490253, 2121679, 8424520, 31120519, 108082568, 355805844, 1117485594, 3366122862, 9767102571, 27398599802, 74534162438, 197147428426, 508187725366, 1279132093597, 3149343999710, 7596355910693, 17974782074306, 41775768918777 ]
[ "nonn" ]
A094443
[ 2, 3, 2, 5, 6, 2, 8, 15, 9, 2, 13, 32, 30, 12, 2, 21, 65, 80, 50, 15, 2, 34, 126, 195, 160, 75, 18, 2, 55, 238, 441, 455, 280, 105, 21, 2, 89, 440, 952, 1176, 910, 448, 140, 24, 2, 144, 801, 1980, 2856, 2646, 1638, ...
[ "nonn", "tabl" ]
A031088
[ 0, 9, 27, 45, 63, 81, 99, 117, 135, 153, 154, 157, 160, 163, 166, 169, 172, 175, 178, 180, 207, 234, 261, 288, 315, 342, 369, 396, 397, 400, 403, 406, 409, 412, 415, 418, 421, 423, 450, 477, 504, 531, 558, 585, 612, 639, 640...
[ "nonn" ]
A055193
[ 6, 210, 840, 341880, 71831760, 64648584000, 2216650756320, 22861058133513600 ]
[ "nonn", "more" ]
A328958
[ 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, -1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, -1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, ...
[ "sign", "easy" ]
A256830
[ 3, 4, 24, 106, 124, 162, 243, 258, 1344, 1386, 2494, 4200, 5859, 8844, 13122, 19908, 86844, 106066, 180732 ]
[ "more", "hard", "nonn" ]
A208637
[ 1, 2, 2, 4, 5, 4, 8, 11, 13, 8, 16, 23, 32, 34, 16, 32, 47, 71, 95, 89, 32, 64, 95, 150, 225, 284, 233, 64, 128, 191, 309, 494, 722, 851, 610, 128, 256, 383, 628, 1042, 1652, 2331, 2552, 1597, 256, 512, 767, 1267, 2149, ...
[ "nonn", "tabl" ]
A022419
[ 7, 20, 23, 9, 28, 31, 12, 36, 14, 41, 44, 17, 49, 52, 54, 57, 22, 62, 65, 25, 70, 27, 75, 78, 30, 83, 86, 33, 91, 35, 96, 99, 38, 104, 107, 109, 112, 43, 117, 120, 46, 125, 48, 130, 133, 51, 138, 141, 143, 146, 56, ...
[ "nonn" ]
A291616
[ 1105, 294409, 852841, 3828001, 17098369, 118901521, 150846961, 172947529, 186393481, 200753281, 686059921, 771043201, 1001152801, 1207252621, 1269295201, 1299963601, 1632785701, 1772267281, 2301745249, 4215885697, 4562359201, 4765950001, 4897161361 ]
[ "nonn" ]
A096213
[ 1000009999, 10000099999, 1000009999999999, 1.00001e+23, 1.00001e+29, 1.00001e+30, 1.00001e+73 ]
[ "nonn" ]
A084604
[ 1, 1, 1, 4, 1, 2, 9, 8, 16, 1, 3, 15, 25, 60, 48, 64, 1, 4, 22, 52, 145, 208, 352, 256, 256, 1, 5, 30, 90, 285, 561, 1140, 1440, 1920, 1280, 1024, 1, 6, 39, 140, 495, 1206, 2841, 4824, 7920, 8960, 9984, 6144, 4096, 1, ...
[ "nonn", "tabf" ]
A264034
[ 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 2, 1, 0, 2, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 2, 1, 1, 2, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1...
[ "nonn", "tabf" ]
A131423
[ 1, 8, 25, 56, 105, 176, 273, 400, 561, 760, 1001, 1288, 1625, 2016, 2465, 2976, 3553, 4200, 4921, 5720, 6601, 7568, 8625, 9776, 11025, 12376, 13833, 15400, 17081, 18880, 20801, 22848, 25025, 27336, 29785, 32376, 35113, 38000, 41041, 44240...
[ "nonn", "easy" ]
A118735
[ 0, 4, 5, 10, 16, 18, 20, 22, 25, 27, 30, 31, 34, 35, 39, 48, 52, 53, 59, 62, 63, 66, 68, 69, 81, 87, 89, 92, 99, 100, 101, 105, 108, 114, 118, 119, 121, 127, 131, 133, 141, 145, 146, 150, 153, 158, 159, 160, 165, 167, ...
[ "base", "nonn" ]
A350173
[ 4, 3, 25, 7, 121, 13, 289, 19, 529, 29, 961, 37, 1681, 43, 2209, 53, 3481, 61, 4489, 71, 5329, 79, 6889, 89, 9409, 101, 10609, 107, 11881, 113, 16129, 131, 18769, 139, 22201, 151, 24649, 163, 27889, 173, 32041, 181, 36481, 193, ...
[ "nonn" ]
A004828
[ 0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 16, 17, 18, 19, 20, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 43, 44, 45, 46, 48, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62, 63, 64, 6...
[ "nonn" ]
A292337
[ 1, 13, 1027, 468481, 2890927, 37009999, 228383233, 2126334691, 104180336299, 8230246567621, 34238014256797, 76626723259567, 131147819778859, 219609509027857, 472852182249889, 1033753383066391, 2704803126286963, 10360677762529860, 16436880348770012, 17349151213200704, 81666517...
[ "nonn" ]
A157172
[ 1, 1, 1, 1, 4, 1, 1, 7, 7, 1, 1, 10, 14, 10, 1, 1, 13, 22, 22, 13, 1, 1, 16, 31, 32, 31, 16, 1, 1, 19, 41, 35, 35, 41, 19, 1, 1, 22, 52, 26, -10, 26, 52, 22, 1, 1, 25, 64, 0, -154, -154, 0, 64, 25, 1, 1, ...
[ "tabl", "sign" ]
A052081
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 40, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 57, 58, 59, 60, 61...
[ "nonn", "base" ]
A253015
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, 1, -1, -5, -11, -19, -29, -41, -55, -71, -4, -1, 4, 1, -4, -11, -20, -31, -44, -59, -9, -5, 1, 9, 5, -1, -9, -19, -31, -45, -16, -11, -4, 5, 16, 11, 4, -5, -16 ]
[ "sign", "base", "easy", "dumb" ]
A054765
[ 0, 1, 3, 19, 160, 1744, 23184, 364176, 6598656, 135484416, 3108695040, 78831037440, 2189265960960, 66083318415360, 2154235544616960, 75425161203302400, 2822882994841190400, 112463980097804700000 ]
[ "nonn", "easy" ]
A005180
[ 1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 60, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 168, 173, 179, 181, 191, 193, 197, 199, 211, ...
[ "nonn", "nice", "easy" ]
A140288
[ 5, 25, 125, 3125, 53125, 453125, 4453125, 14453125, 314453125, 2314453125, 22314453125, 122314453125, 4122314453125, 44122314453125, 444122314453125, 4444122314453125, 54444122314453130, 254444122314453120, 1254444122314453200, 21254444122314453000 ]
[ "nonn", "base" ]
A117659
[ 1, 2, 3, 4, 3, 6, 3, 8, 5, 6, 3, 12, 3, 6, 9, 12, 3, 10, 3, 12, 9, 6, 3, 24, 7, 6, 11, 12, 3, 18, 3, 20, 9, 6, 9, 20, 3, 6, 9, 24, 3, 18, 3, 12, 15, 6, 3, 36, 9, 14, 9, 12, 3, 22, 9, 24, 9, 6, 3, 36...
[ "mult", "nonn" ]
A028560
[ 0, 7, 16, 27, 40, 55, 72, 91, 112, 135, 160, 187, 216, 247, 280, 315, 352, 391, 432, 475, 520, 567, 616, 667, 720, 775, 832, 891, 952, 1015, 1080, 1147, 1216, 1287, 1360, 1435, 1512, 1591, 1672, 1755, 1840, 1927, 2016, 2107, 220...
[ "nonn", "easy" ]
A221341
[ 0, 0, 0, 0, 13, 0, 0, 85, 85, 0, 0, 758, 1828, 758, 0, 0, 5736, 49197, 49197, 5736, 0, 0, 44186, 1160820, 4072557, 1160820, 44186, 0, 0, 335511, 27492106, 290087988, 290087988, 27492106, 335511, 0, 0, 2551999, 645919942, 20842593371 ]
[ "nonn", "tabl" ]
A037327
[ 1, 2, 3, 4, 5, 66, 67, 68, 69, 126, 127, 128, 129, 130, 131, 156, 157, 158, 159, 160, 189, 190, 191, 246, 247, 248, 249, 250, 251, 280, 281, 308, 309, 310, 311, 366, 367, 368, 369, 370, 396, 397, 398, 456, 457, 458, 459, 4...
[ "nonn", "base" ]
A299325
[ 1, 4, 3, 10, 9, 6, 15, 21, 19, 13, 17, 31, 43, 39, 27, 23, 35, 63, 87, 79, 55, 25, 47, 71, 127, 175, 159, 111, 29, 51, 95, 143, 255, 351, 319, 223, 33, 59, 103, 191, 287, 511, 703, 639, 447, 37, 67, 119, 207, 383, 57...
[ "nonn", "easy", "tabl" ]
A203399
[ 2, 0, 2, 1, 0, 0, 2, 0, 2, 0, 0, 0, 2, 1, 0, 3, 0, 0, 0, 0, 2, 0, 0, 0, 6, 0, 0, 0, 0, 0, 2, 1, 2, 0, 0, 7, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 14, 0, 0, 0, 0, 0, 0, 2, 2, 1, 0, 3, 0, 0, 0, ...
[ "nonn", "tabf" ]
A375017
[ 3, 7, 10, 11, 14, 15, 17, 19, 23, 26, 30, 31, 35, 39, 42, 43, 46, 47, 51, 55, 58, 59, 62, 67, 69, 71, 74, 77, 78, 79, 82, 83, 87, 91, 94, 95, 97, 103, 105, 106, 107, 110, 111, 113, 115, 119, 122, 123, 127, 130, 131, ...
[ "nonn" ]
A325908
[ 1, 1, 1, 2, 2, 4, 7, 12, 22, 40, 76, 142, 268, 500, 944, 1788, 3389, 6444, 12286, 23464 ]
[ "nonn", "more" ]
A046021
[ 1, 2, 3, 4, 5, 9, 7, 32, 27, 25, 11, 243, 13, 49, 125, 4096, 17, 2187, 19, 625, 343, 121, 23, 59049, 3125, 169, 177147, 2401, 29, 78125, 31, 134217728, 1331, 289, 16807, 43046721, 37, 361, 2197, 1953125, 41, 117649, 43, 14641, 9...
[ "nonn", "nice" ]
A139438
[ 1, 1, 2, 3, 1, 1, 3, 5, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 3, 1, 1, 3, 5, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 3, 1, 1, 3, 5, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 3, 1, 1, 3, 5, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 3...
[ "nonn", "tabf" ]
A289142
[ 1, 3, 8, 9, 14, 20, 24, 26, 27, 35, 38, 42, 44, 50, 60, 62, 64, 65, 68, 72, 74, 77, 78, 81, 86, 92, 95, 105, 110, 112, 114, 116, 119, 122, 125, 126, 132, 134, 143, 146, 150, 155, 158, 160, 161, 164, 170, 180, 185, 186,...
[ "nonn" ]
A163914
[ 0, 0, 2, 1, 10, 9, 54, 57, 295, 329, 1613, 1834, 8812, 10072 ]
[ "nonn" ]
A140477
[ 1, 127, 8001, 333375, 10334625, 254231775, 5169379425, 89356415775, 1340346236625, 17722355795375, 209123798385425, 2224316764644975, 21501728724901424, 190207600258743360, 1548833316392624600, 11667877650157773000, 81675143551104400000, 533290643186622860000 ]
[ "easy", "nonn" ]
A166403
[ 18, 36, 50, 75, 98, 100, 144, 147, 162, 196, 200, 225, 242, 245, 324, 338, 363, 392, 400, 441, 484, 507, 576, 578, 605, 676, 722, 784, 845, 847, 867, 882, 900, 968, 1058, 1083, 1089, 1156, 1183, 1225, 1250, 1296, 1352, 1444, 144...
[ "nonn" ]
A187917
[ 0, 3, 14, 50, 160, 481, 1390, 3908, 10768, 29215, 78302, 207798, 546960, 1429821, 3715870, 9608200, 24734816, 63429563, 162099950, 412993210, 1049319872, 2659463705, 6725142286, 16971369036, 42748016880, 107489296599, 269850534206, 676460107070, 1693434156592,...
[ "nonn", "easy" ]
A319878
[ 1, 7, 9, 23, 25, 97, 121, 151, 161, 169, 175, 183, 185, 195, 207, 225, 227, 289, 541, 661, 679, 687, 781, 841, 847, 873, 957, 961, 1009, 1089, 1193, 1427, 1563, 1589, 1681, 1819, 1849, 1879, 1895, 2023, 2043, 2167, 2193, 2209, 2...
[ "nonn" ]
A342768
[ 1, 2, 3, 8, 5, 12, 7, 32, 27, 20, 11, 48, 13, 28, 45, 128, 17, 108, 19, 80, 63, 44, 23, 192, 125, 52, 243, 112, 29, 180, 31, 512, 99, 68, 175, 432, 37, 76, 117, 320, 41, 252, 43, 176, 405, 92, 47, 768, 343, 500, 153,...
[ "nonn" ]
A268787
[ 20, 338, 4207, 46195, 477128, 4725018, 45515227, 429442918, 3988796543, 36591758790, 332327545513, 2993282062865, 26773510121640, 238060527618025, 2105957538309226, 18547209960131464, 162707970808249860 ]
[ "nonn" ]