id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A386295
[ 11, 29, 41, 113, 173, 281, 641, 653, 761, 1901, 2273, 2693, 2741, 3413, 3593, 5441, 6053, 6113, 6521, 6581, 7121, 7841, 9293, 9473, 10253, 10733, 12101, 12821, 14081, 14621, 15233, 16493, 19301, 19373, 19553, 19913, 20441, 20693, 21341, 2...
[ "nonn" ]
A095969
[ 4, 6, 12, 25, 27, 29, 48, 63, 88, 93, 134, 147, 149, 151, 153, 181, 211, 224, 235, 247, 249, 285, 301, 389, 433, 483, 612, 642, 694, 742, 877, 975, 994, 1037, 1039, 1080, 1094, 1153, 1276, 1278, 1301, 1380, 1395, 1439, 1474, 1...
[ "nonn" ]
A192978
[ 0, 1, 4, 12, 29, 62, 122, 227, 406, 706, 1203, 2020, 3356, 5533, 9072, 14816, 24129, 39218, 63654, 103215, 167250, 270886, 438599, 709992, 1149144, 1859737, 3009532, 4869972, 7880261, 12751046, 20632178, 33384155, 54017326, 87402538 ]
[ "nonn" ]
A247953
[ 2, 3, 6, 11, 12, 14, 15, 20, 30, 60, 68, 75, 108, 116, 135, 206, 210, 410, 446, 558, 851, 1482, 1499, 2039, 2051, 4196, 7046, 7155, 8735, 10619, 18420, 20039, 46719, 75348, 179790, 203018, 434246 ]
[ "nonn", "more" ]
A285057
[ 1, 6, 12, 12, 5, 12, 56, 24, 36, 30, 110, 12, 91, 168, 60, 48, 153, 36, 342, 60, 168, 330, 552, 24, 25, 546, 108, 168, 406, 60, 930, 96, 660, 306, 280, 36, 703, 342, 1092, 120, 820, 168, 1892, 660, 180, 552, 752, 48, 392...
[ "nonn" ]
A056438
[ 0, 0, 0, 0, 0, 1, 1, 18, 59, 630, 1681, 28867, 60083, 757577, 3514504, 21424002, 64372109, 1024999230, 2026631203, 26920955243, 105501588415, 742299898741, 1974251382095, 31721456317841, 74052852505684 ]
[ "nonn" ]
A042192
[ 24, 25, 299, 623, 7152, 7775, 380352, 388127, 4649749, 9687625, 111213624, 120901249, 5914473576, 6035374825, 72303596651, 150642568127, 1729371846048, 1880014414175, 91970063726448, 93850078140623, 1124320923273301, 2342491924687225, 26891732094832776 ]
[ "nonn", "cofr", "frac", "easy", "less" ]
A055944
[ 0, 2, 3, 6, 5, 10, 9, 14, 9, 18, 15, 24, 15, 24, 21, 30, 17, 34, 27, 44, 25, 42, 35, 52, 27, 44, 37, 54, 35, 52, 45, 62, 33, 66, 51, 84, 45, 78, 63, 96, 45, 78, 63, 96, 57, 90, 75, 108, 51, 84, 69, 102, 63, 96,...
[ "base", "nonn" ]
A312267
[ 1, 4, 8, 14, 16, 22, 24, 30, 30, 38, 40, 50, 48, 58, 56, 66, 62, 70, 72, 82, 84, 90, 92, 98, 98, 102, 104, 114, 116, 126, 124, 134, 130, 138, 136, 146, 148, 158, 160, 166, 166, 170, 172, 178, 180, 190, 192, 202, 198, 2...
[ "nonn" ]
A367839
[ 1, 2, 17, 183, 2679, 48903, 1071621, 27394965, 800378019, 26307021483, 960739737777, 38595129840369, 1691405818822719, 80301792637126780, 4105701241574252500, 224912022483008500000, 1.3142159127790634e+22, 8.159240051863986e+23 ]
[ "nonn" ]
A273682
[ 4, 0, 12, -12, 20, -8, 44, -52, 36, 0, 84, -80, 76, -36, 140, -140, 108, -88, 172, -148, 224, -152, 288, -284, 228, -156, 432, -420, 424, -292, 488, -344, 212, -112, 320, -192, 384, -272, 460, -568, 568, -348, 512, -320, 384, ...
[ "sign", "easy" ]
A312548
[ 1, 4, 8, 14, 18, 24, 28, 32, 34, 40, 42, 50, 50, 60, 58, 70, 76, 80, 84, 78, 92, 86, 102, 94, 112, 102, 122, 128, 132, 136, 122, 144, 130, 154, 138, 164, 146, 174, 180, 184, 188, 166, 196, 174, 206, 182, 216, 190, 226, ...
[ "nonn" ]
A360357
[ 1, 7, 13, 28, 37, 46, 52, 73, 91, 97, 103, 106, 112, 148, 151, 172, 181, 193, 196, 202, 223, 226, 232, 256, 262, 292, 298, 301, 316, 337, 343, 346, 361, 376, 388, 397, 427, 448, 457, 463, 466, 478, 487, 502, 511, 523, 541, ...
[ "nonn" ]
A339033
[ 1, 0, 1, 0, 2, 2, 0, 3, 2, 6, 0, 4, 3, 4, 24, 0, 5, 4, 6, 12, 120, 0, 6, 5, 8, 18, 48, 720, 0, 7, 6, 10, 24, 72, 240, 5040, 0, 8, 7, 12, 30, 96, 360, 1440, 40320, 0, 9, 8, 14, 36, 120, 480, 2160, 10080, 36288...
[ "nonn", "tabl" ]
A066046
[ 1, 2, 3, 11, 61, 887, 64535, 61233287, 4006061344659, 245562839177678230000, 9.837548343344645e+32, 2.415736341149198e+53 ]
[ "nonn" ]
A261304
[ 1, 0, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 59, 58, 57, 56, 55, 54, 53, 52, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6...
[ "nonn" ]
A033681
[ 3, 7, 9, 51, 51, 51, 97, 131, 157, 159, 243, 309, 327, 363, 383, 411, 487, 639, 873, 983, 1231, 1257, 1337, 1549, 1589, 2101, 2159, 2317, 2871, 2907, 4053, 4097, 4597, 4703, 5559, 5799, 6337, 6527, 6561, 6939, 7147, 7167, 7839, 84...
[ "nonn" ]
A253054
[ 329, 427, 581, 679, 973, 1043, 1141, 1267, 1337, 1673, 1897, 1981, 2653, 2723, 2863, 3199, 3227, 3493, 3563, 3787, 3983, 4207, 4319, 4529, 4571, 4711, 4837, 4963, 5299, 5747, 5971, 6209, 6559, 6769, 7133, 7343, 7763, 8197, 8309, 8561, 8...
[ "nonn" ]
A085796
[ 1, 6, 8, 23, 27, 30, 40, 43, 52, 56, 57, 58, 63, 68, 70, 90, 95, 101, 105, 125, 143, 146, 153, 156, 162, 172, 181, 187, 190, 195 ]
[ "nonn" ]
A377060
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 3, 5, 3, 1, 1, 1, 1, 3, 9, 9, 3, 1, 1, 1, 1, 4, 14, 43, 14, 4, 1, 1, 1, 1, 4, 28, 147, 147, 28, 4, 1, 1, 1, 1, 5, 44, 661, 1856...
[ "nonn", "tabl" ]
A362854
[ 1, 2, 3, 4, 5, 6, 7, 10, 9, 10, 11, 12, 13, 14, 15, 18, 17, 18, 19, 20, 21, 22, 23, 30, 25, 26, 30, 28, 29, 30, 31, 34, 33, 34, 35, 36, 37, 38, 39, 50, 41, 42, 43, 44, 45, 46, 47, 54, 49, 50, 51, 52, 53, 60, ...
[ "nonn", "mult" ]
A160159
[ 2, 2, 4, 8, 8, 4, 8, 12, 8, 8, 16, 24, 20, 12, 20, 20, 8, 8, 16, 24, 20, 16, 28, 32, 24, 32, 56, 68, 52, 40, 52, 36, 8, 8, 16, 24, 20, 16, 28, 32, 24, 32, 56, 68, 52, 44, 60, 48, 24, 32, 56, 68, 56, 60, 88, ...
[ "nonn" ]
A195743
[ 0, 1, 2, 2, 3, 3, 4, 2, 3, 3, 5, 3, 6, 5, 6, 2, 7, 3, 8, 3, 5, 6, 9, 3, 5, 7, 3, 5, 10, 5, 11, 2, 11, 8, 11, 3, 12, 11, 8, 3, 13, 4, 14, 7, 10, 11, 15, 3, 7, 4, 15, 5, 16, 3, 9, 5, 11, 13, 17, 4, ...
[ "nonn" ]
A160288
[ 1, 52, 1022, -121784, -11489780, 221894192, 108167547784, 3385356299104, -1097526180055408, -102624715723624640, 11277866096050285000, 2.3125967554659814e+21, -8.840804722489135e+22, -5.127467136801971e+25, -7.33152550517551e+26 ]
[ "sign", "frac" ]
A175258
[ 0, 24, 30, 54, 66, 96, 114, 150, 180, 240, 264, 294, 360, 474, 516, 546, 564, 570, 606, 660, 684, 696, 714, 774, 810, 816, 936, 1074, 1080, 1146, 1164, 1206, 1236, 1284, 1374, 1386, 1500, 1596, 1626, 1650, 1680, 1704, 1746, 1794, ...
[ "nonn" ]
A375374
[ 1, 2, 3, 5, 4, 7, 6, 8, 11, 9, 12, 10, 15, 16, 13, 14, 17, 18, 23, 24, 19, 20, 25, 26, 21, 22, 31, 32, 33, 34, 27, 28, 29, 30, 35, 36, 37, 38, 47, 48, 49, 50, 39, 40, 41, 42, 51, 52, 53, 54, 43, 44, 45, 46, 6...
[ "nonn" ]
A355609
[ 1, 1, 1, 1, 0, 2, 1, 0, 2, 6, 1, 0, 0, 3, 24, 1, 0, 0, 6, 20, 120, 1, 0, 0, 0, 12, 90, 720, 1, 0, 0, 0, 24, 40, 594, 5040, 1, 0, 0, 0, 0, 60, 540, 4200, 40320, 1, 0, 0, 0, 0, 120, 240, 3528, 34544, 362880, ...
[ "nonn", "tabl" ]
A100228
[ 1, 2, 3, -3, -6, 24, 3, -183, 273, 1131, -4407, -3081, 48360, -54750, -396195, 1282551, 1860186, -17122944, 11240049, 166745823, -432682314, -1054472016, 6822994737, -835915197, -76044224139, 152526011235, 587055710271, -2871405804783, -1378878506592, 360818...
[ "sign" ]
A320943
[ 1559439365121, 2468046593376, 7760419091425 ]
[ "nonn", "more", "bref" ]
A114042
[ 32, 42, 46, 47, 56, 58, 61, 66, 71, 74, 76, 97, 103, 114, 118, 126, 127, 128, 161, 177, 180, 186, 195, 205, 232, 233, 267, 271, 290, 321, 326, 329, 331, 347, 359, 368, 370, 372, 383, 416, 423, 432, 437, 456, 508, 518, 520, ...
[ "nonn" ]
A362133
[ 1, 3, 5, 7, 9, 12, 17, 31, 36, 41, 58, 74, 82, 112, 160, 189, 198, 220, 294, 325, 914, 1267, 1389, 1872, 1927, 1957, 2032, 2155, 2184, 2302, 2358, 2835, 3047, 3672, 3794, 3832, 3873, 3924, 4543, 4785, 35502, 98365, 1728198, 837501...
[ "nonn", "more" ]
A166390
[ 52, 169, 520, 611, 702, 1027, 1118, 1209, 1690, 1781, 1872, 1963, 2028, 2119, 2691, 2782, 2873, 2964, 3029, 3692, 3783, 3874, 3965, 4693, 4784, 4875, 4966, 5200, 5694, 5785, 5876, 5967, 6110, 6201, 6695, 6786, 6877, 6968, 7020, 7111, 72...
[ "nonn", "base" ]
A242030
[ 3, 8, 4, 3, 8, 5, 14, 8, 6, 4, 3, 8, 7, 20, 11, 32, 17, 50, 26, 14, 8, 8, 5, 14, 8, 9, 26, 14, 8, 10, 6, 4, 3, 8, 11, 32, 17, 50, 26, 14, 8, 12, 7, 20, 11, 32, 17, 50, 26, 14, 8, 13, 38, 20, 11, 32, 17, ...
[ "nonn", "tabf" ]
A258938
[ 2, 3, 4, 6, 7, 8, 9, 11, 14, 18, 19, 21, 23, 25, 30, 32, 33, 42, 44, 47, 57, 59, 63, 65, 71, 76, 77, 82, 83, 85, 86, 93, 97, 107, 108, 111, 116, 117, 118, 121, 127, 131, 135, 137, 139, 143, 151, 153, 154, 162, 164, ...
[ "nonn", "base" ]
A236127
[ 256, 2782, 2782, 30660, 65360, 30660, 337810, 1546388, 1546388, 337810, 3723012, 36646316, 79435700, 36646316, 3723012, 41005528, 867557598, 4076346506, 4076346506, 867557598, 41005528, 451716944, 20540949574, 209227480445 ]
[ "nonn", "tabl" ]
A256962
[ 2, 90, 98, 5518, 40722, 2487370, 16433978, 20034266 ]
[ "nonn", "more" ]
A022447
[ 1, 1, 1, 2, 1, 3, 2, 4, 5, 6, 1, 7, 3, 8, 9, 10, 2, 11, 4, 12, 13, 14, 5, 15, 16, 17, 18, 19, 6, 20, 1, 21, 22, 23, 24, 25, 7, 26, 27, 28, 3, 29, 8, 30, 31, 32, 9, 33, 34, 35, 36, 37, 10, 38, 39, 40, 41, ...
[ "nonn" ]
A109469
[ 0, 2, 5, 9, 49, 259, 1736, 13408, 117664, 1153714, 12492569, 147987413, 1903194061, 26402007855, 392928613560, 6244069139240, 105515436903720, 1889249822655882, 35726927316484052, 711526052649064100 ]
[ "easy", "nonn" ]
A169576
[ 1, 35, 1190, 40460, 1375640, 46771760, 1590239840, 54068154560, 1838317255040, 62502786671360, 2125094746826240, 72253221392092160, 2456609527331133400, 83524723929258540000, 2.83984061359479e+21, 9.655458086222287e+22 ]
[ "nonn" ]
A372079
[ 1, 2, 3, 4, 5, 5, 5, 5, 5, 6, 7, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 13, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 19, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 29, 29, 29, 29,...
[ "nonn" ]
A359898
[ 0, 0, 0, 0, 0, 0, 0, 1, 2, 1, 4, 6, 5, 11, 12, 14, 21, 29, 26, 44, 44, 58, 68, 92, 92, 118, 137, 165, 192, 241, 223, 324, 353, 405, 467, 518, 594, 741, 809, 911, 987, 1239, 1276, 1588, 1741, 1823, 2226, 2566, 2727, 313...
[ "nonn" ]
A249988
[ 0, 17, 34, 52, 69, 87, 104, 121, 139, 156, 173, 190, 207, 224, 241, 258, 275, 292, 309, 325, 342, 358, 374, 390, 406, 422, 438, 453, 469, 484, 500, 515, 529, 544, 559, 573, 587, 601, 615, 629, 642, 656, 669, 681, 694, 707, 7...
[ "nonn" ]
A231447
[ 7, 87, 1598, 33659, 738459, 16471575, 370059818, 8337875579, 188061528227, 4243377409271, 95760169469137, 2161131575055099, 48773753581494540, 1100764446612026900, 24842987212570660000, 560678221584425000000 ]
[ "nonn" ]
A195562
[ 1, 24, 40, 63, 1600, 2624, 4161, 105560, 173160, 274559, 6965376, 11425920, 18116737, 459609240, 753937576, 1195430079, 30327244480, 49748454080, 78880268481, 2001138526424, 3282644031720, 5204902289663, 132044815499520 ]
[ "nonn" ]
A327758
[ 1, 1, 0, 0, 1, 0, -1, -1, -1, -1, 0, 1, 1, 2, 3, 2, 1, 0, -2, -4, -4, -4, -3, 0, 3, 5, 6, 7, 4, 0, -4, -8, -12, -11, -6, -2, 4, 12, 17, 16, 12, 4, -8, -17, -22, -24, -20, -6, 11, 24, 34, 36, 29, 12, -10, -3...
[ "sign", "look" ]
A048213
[ 2, 1, 4, 6, 8, 9, 12, 15, 16, 20, 22, 24, 25, 26, 32, 33, 34, 37, 38, 41, 45, 47, 48, 53, 56, 59, 61, 62, 64, 68, 69, 74, 76, 77, 78, 81, 84, 87, 88, 89, 96, 98, 100, 103, 105, 106, 110, 111, 114, 119, 121, 127, ...
[ "nonn" ]
A083287
[ 1, 1, 1, 1, 1, 1, 5, 10, 19, 1, 4, 4, 4, 3, 10, 1, 42, 2, 23, 33, 1, 4, 7, 1, 12, 1, 1, 2, 9, 2, 11, 3, 4, 1, 1, 3, 2, 4, 25, 3, 1, 16, 5, 10, 1, 1, 1, 3, 1, 1, 1, 3, 2, 2, 1, 1, 1, 2, 3, 2, 1, ...
[ "nonn", "cofr" ]
A213294
[ 1, 6, 36, 171, 711, 2506, 8151, 25781, 83728, 273248, 916966, 3121506, 10934875, 38945256, 142403783, 529393936, 2014819829, 7790840332, 30758499541, 123255094820, 503078455794, 2081817569353, 8756613613322, 37300624224737, 161213532001916, 704851308055768 ]
[ "nonn" ]
A357753
[ 4, 9, 16, 36, 64, 144, 256, 529, 1024, 2116, 4096, 8281, 16384, 33124, 65536, 131769, 262144, 525625, 1048576, 2099601, 4194304, 8392609, 16777216, 33558849, 67108864, 134235396, 268435456, 536895241, 1073741824, 2147488281, 4294967296, 8589953124, 171...
[ "nonn", "base" ]
A293245
[ 1, 2, 34, 161966673 ]
[ "nonn", "more" ]
A267426
[ 6, 1, 1, 1, 1, 1, 1, 5, 27, 147, 716, 3088, 11526, 39526, 124957, 373857, 1064784, 2933131, 7873273, 20899636, 55550356, 150499069, 422235945, 1241600062, 3831289921, 12297881055, 40444127432, 134225228520, 444175261116 ]
[ "nonn" ]
A025349
[ 101, 110, 126, 134, 146, 149, 161, 173, 174, 182, 185, 186, 189, 194, 206, 209, 221, 222, 230, 234, 237, 245, 251, 254, 257, 261, 266, 269, 270, 278, 281, 285, 286, 290, 293, 294, 299, 302, 305, 306, 309, 314, 315, 318, 321, 3...
[ "nonn" ]
A320939
[ 0, 1, 3, 5, -650, -46071, 3121776, 5538166381, 3146076001776, -10459815889305232, -100694615309371570000, -1.93538025548432e+23, 3.8912028315765823e+28, 2.554132880645628e+33, -1.060749519969032e+38 ]
[ "sign" ]
A321090
[ 2, 0, 1, 2, 1, 0, 2, 1, 0, 2, 0, 1, 2, 0, 1, 2, 1, 0, 2, 0, 1, 2, 0, 1, 2, 1, 0, 2, 0, 1, 2, 1, 0, 2, 1, 0, 2, 0, 1, 2, 1, 0, 2, 1, 0, 2, 0, 1, 2, 0, 1, 2, 1, 0, 2, 0, 1, 2, 1, 0, 2, 1, 0, 2...
[ "nonn" ]
A384984
[ 1, 1, 9, 133, 3185, 88521, 2709625, 59590189, -2800437663, -743713824239, -109790487971479, -14561409462651436, -1895796404420991000, -246003292448561600000, -3.1576403033658805e+22, -3.8692590202457835e+24, -4.070640589394702e+26, -2.044121510307284e+28 ]
[ "sign" ]
A360709
[ 1, 0, 0, 1, 1, 1, 2, 5, 13, 34, 90, 247, 720, 2256, 7568, 26814, 98982, 377541, 1484254, 6021789, 25271173, 109850447, 494355359, 2298362532, 11008133629, 54175202125, 273460921605, 1414449612648, 7494262602464, 40669492399396 ]
[ "nonn" ]
A349886
[ 1, 2, 18, 19749, 4295498995, 298024323402930800, 1.0314425729813391e+28, 2.5692357800228868e+41, 6.277101735598269e+57 ]
[ "nonn" ]
A107424
[ 1, 0, 1, 0, 1, 1, 0, 2, 2, 1, 0, 3, 5, 2, 1, 0, 5, 17, 13, 3, 1, 0, 9, 43, 50, 20, 3, 1, 0, 16, 124, 220, 136, 36, 4, 1, 0, 28, 338, 866, 773, 296, 52, 4, 1, 0, 51, 941, 3435, 4280, 2303, 596, 78, 5, 1, 0, ...
[ "nonn", "tabl" ]
A044754
[ 41, 141, 241, 341, 419, 441, 541, 641, 741, 841, 941, 1041, 1141, 1241, 1341, 1419, 1441, 1541, 1641, 1741, 1841, 1941, 2041, 2141, 2241, 2341, 2419, 2441, 2541, 2641, 2741, 2841, 2941, 3041, 3141, 3241, 3341, 3419, 3441 ]
[ "nonn", "base" ]
A268935
[ 2, 3, 5, 6, 11, 17, 11, 11, 13, 9, 13, 13, 15, 11, 15, 15, 10, 10, 9, 19, 11, 10, 10, 9, 19, 11, 10, 10, 9, 19, 11, 10, 10, 9, 19, 11, 10, 10, 9, 19, 11, 10, 10, 9, 19, 11, 10, 10, 9, 19, 11, 10, 10, 9, 19, ...
[ "nonn" ]
A072513
[ 1, 1, 2, 6, 4, 60, 6, 168, 48, 360, 10, 47520, 12, 1092, 1680, 20160, 16, 440640, 18, 820800, 5040, 4620, 22, 734469120, 480, 7800, 11232, 4953312, 28, 3946320000, 30, 9999360, 21120, 17952, 28560, 439723468800, 36, 25308, 35568, 35852544...
[ "nonn" ]
A103036
[ 1, 2, 5, 10, 40, 47, 58, 73, 92, 113, 124, 130, 887, 1234, 1538, 2063, 2591, 2786, 3145, 21688, 32381, 39170, 47791, 83878 ]
[ "more", "nonn" ]
A225698
[ 1, 8, 384, 3072, 98304, 2359296, 113246208, 100663296, 19327352832, 1391569403904, 22265110462464, 534362651099136, 17099604835172352, 136796838681378820, 6566248256706183000, 157589958160948400000, 6.723838214867132e+21 ]
[ "nonn", "frac" ]
A230686
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 68, 360, 32, 0, 0, 0, 0, 2, 1500, 24050, 15624, 432, 0, 0, 0, 0, 8, 18468, 974548, 2756394, 575280, 5182, 0, 0, 0, 0...
[ "nonn", "tabl" ]
A071391
[ 0, 1, 0, 2, 0, 3, 0, 0, 4, 5, 0, 0, 0, 6, 0, 0, 0, 0, 8, 0, 0, 10, 0, 0, 0, 13, 0, 0, 0, 14, 0, 12, 0, 17, 0, 0, 0, 19, 16, 0, 0, 0, 0, 21, 18, 22, 0, 0, 0, 20, 25, 0, 0, 26, 0, 0, 0, 27, 0, 0, 0,...
[ "nonn", "easy" ]
A127297
[ 1, 1, 2, 5, 10, 18, 86, 345, 866, 2639, 13341, 46236, 207882 ]
[ "nonn" ]
A014696
[ 1, 3, 14, 30, 77, 138, 273, 438, 748, 1113, 1729, 2436, 3542, 4788, 6630, 8676, 11571, 14751, 19096, 23826, 30107, 36894, 45695, 55146, 67158, 79989, 96019, 113064, 134044, 156264, 183260, 211752, 245973, 281979, 324786, 369702, 422617, 47800...
[ "nonn", "easy" ]
A089244
[ 7, 5, 44, 37, 301, 277, 2425, 2294, 2085, 18569, 17960, 164398, 156173, 152498, 145864, 1373605, 1301889, 1280368, 12216944, 11867816, 11704114, 11250879, 109764259, 105999788, 101534616, 995037190, 985329278, 966736489, 957826285, 940720868, 8873565094, ...
[ "easy", "nonn" ]
A061143
[ 1, 1, 4, 13, 82, 121, 218, 278, 498, 305, 358, 510, 666, 828, 939, 1189, 1155, 1335, 1870, 2101, 1770, 16411, 1380, 2082, 14035, 2437, 1734, 3079, 4537, 2335, 3923, 2750, 8259, 3144, 2986, 2803, 6187, 2833, 5008, 3251, 3442, 4588, 3...
[ "easy", "nonn" ]
A199338
[ 1, 11, 19, 89, 151, 701, 1189, 5519, 9361, 43451, 73699, 342089, 580231, 2693261, 4568149, 21203999, 35964961, 166938731, 283151539, 1314305849, 2229247351, 10347508061, 17550827269, 81465758639, 138177370801, 641378561051, 1087868139139, 5049562729769 ]
[ "nonn", "easy" ]
A346664
[ 1, 0, 3, 12, 73, 453, 2985, 20373, 142933, 1024302, 7466211, 55182240, 412586977, 3115105321, 23717115513, 181884676827, 1403719428485, 10894049061956, 84967420574247, 665643698649684, 5235570329071893, 41328838600501830, 327315349579739650, 2600034901186102300 ]
[ "nonn" ]
A045969
[ 6, 15, 35, 225, 77, 525, 143, 3375, 1225, 1155, 221, 7875, 323, 2145, 2695, 50625, 437, 18375, 667, 17325, 5005, 3315, 899, 118125, 5929, 4845, 42875, 32175, 1147, 40425, 1517, 759375, 7735, 6555, 11011, 275625, 1763, 10005, 11305, 259875...
[ "easy", "nonn" ]
A262667
[ 1, 2, 5, 12, 25, 52, 103, 198, 370, 680, 1221, 2158, 3757, 6448, 10931, 18322, 30382, 49894, 81206, 131044, 209818, 333466, 526294, 825182, 1285807, 1991754, 3068074, 4700910, 7166216, 10871534, 16416358, 24679224, 36943232, 55075758, 81785488, 1...
[ "nonn" ]
A162988
[ 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9...
[ "nonn" ]
A140571
[ 2, 0, 5, 7, 2, 8, 4, 1, 2, 8, 4, 7, 8, 7, 9, 3, 4, 1, 2, 8, 5, 8, 2, 2, 3, 9, 6, 4, 4, 8, 3, 7, 6, 9, 0, 9, 1, 0, 0, 4, 3, 4, 7, 8, 2, 7, 4, 9, 4, 2, 1, 2, 6, 8, 0, 7, 4, 1, 5, 3, 8, 1, 9, 6...
[ "cons", "easy", "nonn" ]
A183225
[ 2, 4, 2, 5, 3, 2, 7, 5, 3, 2, 8, 6, 4, 3, 2, 9, 7, 6, 4, 3, 2, 11, 8, 7, 5, 4, 3, 2, 12, 10, 8, 7, 5, 4, 3, 2, 13, 11, 9, 8, 6, 5, 4, 3, 2, 14, 12, 10, 9, 8, 6, 5, 4, 3, 2, 16, 13, 11, 10, 9, 7, ...
[ "nonn", "tabl" ]
A286272
[ 0, 1, 3, 6, 11, 18, 29, 45, 69, 104, 157, 235, 353, 529, 795, 1196, 1807, 2734, 4153, 6322, 9655, 14779, 22689, 34904, 53829, 83174, 128783, 199742, 310351, 482927, 752611, 1174440, 1835087, 2870689, 4495811, 7048133, 11060415, 17372551, 27...
[ "nonn" ]
A341137
[ 1, 8, 36, 120, 330, 784, 1660, 3208, 5763, 9752, 15724, 24368, 36520, 53152, 75392, 104464, 141717, 188624, 246836, 318088, 404356, 507656, 630172, 774048, 941685, 1135304, 1357652, 1611240, 1899138, 2224016, 2589352, 2997544, 3452619, 3957480, 451...
[ "nonn" ]
A237783
[ 86736, 2839146, 93725888, 3131569162, 104657092608, 3504178922346, 117069717739712, 3909602732545636, 130784267440486080, 4378577665429508000, 146290969991187580000, 4.885597597088618e+21, 1.6343879078712155e+23 ]
[ "nonn" ]
A147434
[ 1, 1, 1, 1, 1, 1, 1, 5, 17, 31, 51, 113, 291, 823, 2647, 8411, 31311, 121645, 537901, 2460285, 12092291, 63560047, 371846157, 2296989649 ]
[ "nonn" ]
A067914
[ 1, 58, 170, 386, 5254, 66282, 599652, 868113, 3766902, 103572028, 168604143, 184143987, 435313165, 487337902, 2137572181, 7806336112, 58951218998, 88988779166, 98134403047, 151936444428, 445419603341, 712997180935 ]
[ "easy", "nonn" ]
A268645
[ 1, 2, 3, 6, 8, 15, 24, 48, 105, 120, 384, 720, 945, 3840, 5040, 10395, 40320, 46080, 135135, 362880, 645120, 2027025, 3628800, 10321920, 34459425, 39916800, 185794560, 479001600, 654729075, 3715891200, 6227020800, 13749310575, 81749606400, 8717829120...
[ "nonn" ]
A063925
[ 10, 24, 32, 96, 720, 1200 ]
[ "fini", "full", "nonn" ]
A194147
[ 1, 3, 7, 12, 19, 27, 37, 48, 61, 75, 90, 107, 125, 145, 166, 189, 213, 239, 266, 294, 324, 355, 388, 422, 458, 495, 534, 574, 616, 659, 703, 749, 796, 845, 895, 947, 1000, 1055, 1111, 1168, 1227, 1287, 1349, 1412, 1477, 1543, ...
[ "nonn", "easy" ]
A027143
[ 57, 486, 4117, 34760, 293086, 2471917, 20870169, 176467252, 1494672812, 12682766442, 107814252502, 918166760699, 7832993240285, 66936986352534, 572934789920969, 4911478255448828, 42165255645650620, 362494201554529200, 3120475613849051600, 26895832224848130000 ]
[ "nonn" ]
A172292
[ 9, 15, 25, 21, 35, 49, 27, 45, 63, 81, 33, 55, 77, 99, 121, 39, 65, 91, 117, 143, 169, 45, 75, 105, 135, 165, 195, 225, 51, 85, 119, 153, 187, 221, 255, 289, 57, 95, 133, 171, 209, 247, 285, 323, 361, 63, 105, 147, 189, ...
[ "nonn", "tabl", "easy" ]
A087402
[ 11, 222, 44, 222, 22, 66, 44, 22, 66, 222, 222, 66, 222, 888, 44, 666, 88, 44, 22, 888, 66, 44, 88, 444, 66, 222, 66, 66, 44, 222, 22, 66, 66, 66, 44, 66, 888, 22, 44, 88, 66, 222, 444, 66, 2222, 22, 666, 2222, 22, 66,...
[ "base", "nonn" ]
A247856
[ 3, 1, 3, 2, 3, 3, 0, 8, 0, 9, 8, 6, 9, 4, 5, 9, 1, 2, 6, 3, 0, 7, 8, 6, 4, 8, 6, 4, 7, 2, 1, 7, 2, 8, 0, 0, 4, 3, 9, 2, 5, 1, 1, 7, 4, 5, 0, 5, 2, 2, 5, 3, 9, 7, 1, 7, 3, 2, 6, 8, 4, 8, 5, 4...
[ "nonn", "cons" ]
A085725
[ 6, 8, 9, 14, 18, 19, 21, 23, 26, 34, 36, 40, 48, 54, 76, 88, 105, 122, 135 ]
[ "more", "hard", "nonn" ]
A181526
[ 2, 3, 5, 7, 13, 23, 29, 31, 41, 43, 47, 53, 61, 67, 79, 83, 89, 97, 103, 163, 241, 257, 421, 431, 457, 461, 463, 467, 479, 503, 523, 547, 563, 587, 613, 631, 641, 643, 647, 653, 683, 769, 853, 857, 863, 947, 967, 1423, 2...
[ "nonn", "base", "less" ]
A050977
[ 1, 2, 1, 2, 6, 2, 6, 5, 2, 4, 6, 4, 16, 6, 9, 6, 5, 22, 2, 4, 18, 6, 14, 3, 8, 10, 16, 6, 36, 9, 4, 20, 6, 42, 5, 22, 46, 4, 42, 16, 4, 52, 18, 6, 18, 14, 29, 30, 3, 6, 16, 10, 22, 16, 22, 5, 6, 72, 3...
[ "nonn" ]
A060795
[ 1, 2, 5, 14, 42, 165, 714, 3094, 14858, 79534, 447051, 2714690, 17395070, 114371070, 783152070, 5708587335, 43848093003, 342444658094, 2803119896185, 23619540863730, 201813981102615, 1793779293633437, 16342050964565644, 154170926013430340, 1518409177581024300 ]
[ "nonn" ]
A147807
[ 1, 2, 4, 5, 7, 8, 11, 13, 15, 16, 18, 20, 24, 25, 27, 28, 32, 35, 37, 38, 42, 44, 48, 49, 51, 52, 56, 58, 60, 62, 66, 69, 73, 75, 77, 78, 82, 85, 87, 88, 91, 93, 99, 101, 103, 105, 113, 115, 117, 119, 121, 123, 1...
[ "easy", "nonn" ]
A150381
[ 1, 2, 7, 23, 97, 362, 1577, 6240, 28009, 114940, 522955, 2196683, 10100781, 43162414, 199901541, 865225257, 4029080767, 17615868458, 82383872857, 363146829627, 1704094090311, 7562407341100, 35586905917603, 158827126064704, 749146049723839, 3359778029595732, 158785...
[ "nonn", "walk" ]
A214444
[ 7, 5, 7, 5, 7, 5, 151, 29, 31, 5, 7, 101, 35, 25, 7, 5, 7, 5, 7, 5, 35, 53, 7, 25, 35, 25, 43, 5, 35, 65, 7, 65, 91, 17, 7, 65, 83, 13, 59, 173, 7, 25, 11, 13, 7, 17, 7, 25, 11, 17, 7, 65, 43, 61, 35, 17, ...
[ "nonn" ]
A011221
[ 1, 1, 6, 1, 0, 3, 6, 6, 7, 2, 3, 7, 3, 9, 9, 4, 2, 5, 1, 9, 3, 7, 9, 6, 3, 1, 6, 7, 7, 2, 1, 7, 3, 4, 9, 8, 1, 0, 3, 8, 2, 9, 3, 8, 6, 4, 0, 5, 2, 9, 1, 7, 2, 3, 0, 3, 5, 1, 6, 7, 8, 8, 3, 5...
[ "nonn", "cons" ]
A380799
[ 1, 8, 130, 3344, 119808, 5547112, 316221904, 21462652080, 1692342355840, 152162079949448, 15373938883590144, 1725108070356808000, 212915967853642320000, 2.867228955568056e+22, 4.184239024352928e+24, 6.578568893101165e+26, 1.1086832159499744e+29 ]
[ "nonn" ]
A318121
[ 1, 1, 4, 15, 65, 269, 1205, 5325, 24064, 108849, 496790, 2275492, 10470720, 48325984, 223721404, 1038182441, 4828274432, 22497132116, 105001996350, 490816448220, 2297356108318, 10766317435860, 50511178395306, 237217429972191, 1115084064063866, 5246116796164594 ]
[ "nonn" ]
A230225
[ 31, 37, 59, 61, 71, 79, 101, 103, 107, 109, 149, 151, 163, 181, 211, 241, 257, 263, 271, 311, 313, 317, 331, 347, 367, 373, 389, 401, 421, 433, 449, 457, 461, 479, 499, 521, 541, 569, 571, 577, 587, 601, 619, 631, 661, 673, ...
[ "nonn", "easy" ]
A015908
[ 1, 0, 0, 15, 0, 1565, 111, 35, 0, 123, 365, 671, 15, 185653, 259, 85, 0, 4369, 39, 247, 800005, 39, 55, 115, 1731, 85, 221, 135, 35, 105821, 51, 403, 0, 55, 1649, 1939, 3177, 3293, 95, 2283, 3845, 697, 357, 215, 143, 153, 66...
[ "nonn" ]