id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A177784
[ 1, 7, 91, 1771, 46376, 1533939, 61474519, 2898753715, 157366449604, 9672348219898, 664226242466073, 50419551102990880, 4193002458968329700, 379189865879906160000, 3.705423383096439e+22, 3.891304066485265e+24, 4.370833109186993e+26, 5.229175540406251e+28 ]
[ "nonn", "easy" ]
A250255
[ 1, 2, 3, 4, 7, 9, 16, 20, 35, 45, 80, 102, 181, 232, 413, 529, 942, 1206, 2147, 2750, 4897, 6270, 11167, 14297, 25463, 32601, 58064, 74339, 132403, 169514, 301916, 386541, 688457, 881425, 1569881, 2009905, 3579786, 4583168, 8162954, 10450956 ]
[ "nonn" ]
A382262
[ 0, 1, 3, 5, 9, 11, 15, 23, 33, 35, 39, 47, 57, 59, 63, 83, 87, 119, 153, 155, 159, 167, 177, 179, 183, 203, 207, 239, 273, 275, 279, 287, 297, 323, 327, 395, 399, 417, 419, 423, 527, 563, 567, 719, 873, 875, 879, 887, 897, 899, 903, 923, 927, 959, 993, 995 ]
[ "nonn", "base" ]
A234483
[ 62, 242, 944, 3686, 14402, 56312, 220334, 862706, 3380192, 13252982, 51996674, 204137576, 801957182, 3152502002, 12400248464, 48805735046, 192207885122, 757400598872, 2986264405454, 11780750826866, 46500068952512 ]
[ "nonn" ]
A099331
[ 0, 0, 0, 2, 1, 4, 3, 12, 16, 40, 56, 122, 197, 408, 695, 1352, 2368, 4512, 8096, 15202, 27529, 51196, 93339, 172852, 316368, 584104, 1071160, 1974458, 3625613, 6677104, 12269359, 22583120, 41513728, 76387712, 140454656, 258398850, 475182353 ]
[ "nonn" ]
A222016
[ 6, 188, 3875, 86088, 1892859, 41636522, 916164266, 20156123913, 443464985963, 9756801621038, 214662580479904, 4722860659023550, 103909179716386460, 2286139384890550000, 50298089904801490000, 1.1066244988570419e+21 ]
[ "nonn" ]
A206337
[ 96, 181, 232, 534, 686, 1589, 2042, 4751, 6110, 14239, 18318, 42705, 54942, 128103, 164814, 384297, 494430, 1152879, 1483278, 3458625, 4449822, 10375863, 13349454, 31127577, 40048350, 93382719, 120145038, 280148145, 360435102, 840444423 ]
[ "nonn" ]
A274445
[ 385, 91, 65, 451, 33, 170171, 145, 1261, 161, 78409, 469, 294061, 649, 13051, 1921, 5251, 721, 8453501, 145, 300243, 1121, 47611, 3601, 1915801, 1057, 41311, 545, 5671, 1261, 19723133, 4321, 37759, 6913, 451, 4033, 102821, 1513, 40891, 11521, 1259497, 721, 364781, 145 ]
[ "nonn" ]
A126219
[ 1, 2, 5, 14, 40, 2, 116, 16, 344, 80, 5, 1040, 340, 50, 3188, 1360, 300, 14, 9880, 5264, 1484, 168, 30912, 19880, 6776, 1176, 42, 97520, 73728, 29568, 6608, 588, 309856, 269952, 124656, 33600, 4704, 132, 990656, 979264, 511584, 161280, 29544, 2112 ]
[ "nonn", "tabf" ]
A332265
[ 20, 3202, 2056675, 3500185228 ]
[ "nonn", "base", "more" ]
A287411
[ 0, 1, 2, 1, 2, 0, 0, 2, 1, 1, 2, 0, 0, 2, 1, 0, 1, 2, 0, 1, 2, 0, 2, 1, 1, 2, 0, 1, 2, 0, 0, 2, 1, 0, 1, 2, 0, 1, 2, 0, 2, 1, 1, 2, 0, 0, 1, 2, 1, 2, 0, 0, 2, 1, 0, 1, 2, 1, 2, 0, 0, 2, 1, 0, 1, 2, 0, 2, 1, 1, 2, 0, 1, 2, 0, 0, 2, 1, 0, 1, 2, 1, 2, 0, 0, 2 ]
[ "nonn", "easy" ]
A083300
[ 1, 5, 41, 269, 1937, 13397, 94265, 658397, 4613153, 32278949, 225992009, 1581825965, 11073136049, 77510889461, 542579414873, 3798046338173, 26586353065025, 186104385361733, 1302730955812457, 9119115915846220 ]
[ "easy", "nonn", "changed" ]
A310434
[ 1, 4, 10, 15, 18, 24, 30, 33, 37, 45, 48, 51, 57, 65, 66, 70, 78, 83, 85, 90, 97, 101, 104, 111, 115, 120, 124, 130, 134, 139, 144, 148, 153, 159, 163, 167, 172, 179, 182, 186, 191, 198, 201, 205, 211, 217, 220, 224, 231, 236 ]
[ "nonn" ]
A269931
[ 4, 12, 20, 28, 29, 36, 44, 49, 52, 57, 60, 68, 73, 76, 84, 92, 100, 105, 108, 116, 124, 132, 140, 148, 153, 156, 161, 164, 172, 180, 188, 189, 196, 201, 204, 212, 220, 228, 236, 244, 252, 260, 268, 276, 281, 284, 289, 292, 300, 308, 316, 324, 329, 332, 340, 345, 348, 356, 364, 372 ]
[ "nonn" ]
A112654
[ 0, 1, 10, 11, 12, 21, 22, 23, 32, 33, 34, 43, 44, 45, 54, 55, 56, 65, 66, 67, 76, 77, 78, 87, 88, 89, 98, 99, 100, 109, 110, 111, 120, 121, 122, 131, 132, 133, 142, 143, 144, 153, 154, 155, 164, 165, 166, 175, 176, 177, 186, 187, 188, 197, 198, 199, 208, 209 ]
[ "nonn", "easy" ]
A246136
[ 211, 227, 373, 503, 32119, 856147, 2054519, 131479927 ]
[ "nonn", "base", "fini", "full" ]
A114447
[ 32, 48, 64, 72, 81, 91, 99, 108, 112, 117, 123, 135, 139, 144, 152, 155, 160, 162, 176, 195, 207, 208, 216, 219, 240, 252, 264, 272, 275, 279, 292, 297, 300, 323, 324, 327, 331, 342, 347, 351, 355, 375, 376, 378, 399, 405, 417, 425, 435, 444, 450, 451, 455, 464 ]
[ "easy", "nonn" ]
A367190
[ 3, 24, 8, 153, 124, 20, 588, 780, 390, 42, 1635, 2816, 2370, 939, 91, 3708, 7480, 8300, 5568, 1932, 136, 7329, 16428, 21600, 19149, 11193, 3512, 288, 13128, 31724, 46770, 49242, 37996, 20176, 5994, 390, 21843, 55840, 89390, 105747, 96915, 67936, 33750, 9455, 715 ]
[ "nonn", "tabl" ]
A210177
[ 51, 2316, 79017, 2563795, 82255351, 2632469015, 84200356757, 2692825679001, 86117153792391, 2754026796151627, 88073648144059740, 2816590158892560400, 90074382683817260000, 2.8805732498778384e+21, 9.212055599038212e+22 ]
[ "nonn" ]
A249667
[ 6, 24, 30, 36, 50, 54, 78, 84, 114, 132, 144, 156, 174, 210, 220, 252, 294, 300, 306, 330, 360, 378, 474, 492, 510, 512, 528, 546, 560, 594, 610, 650, 660, 690, 714, 720, 762, 780, 800, 804, 810, 816, 870, 912, 996, 1002, 1068, 1074, 1104, 1120, 1170, 1176, 1190, 1210, 1236, 1262 ]
[ "nonn" ]
A389898
[ 1, 2, 3, 1, 4, 5, 6, 2, 3, 4, 7, 3, 8, 9, 10, 1, 11, 5, 12, 4, 13, 14, 15, 5, 16, 17, 18, 6, 19, 20, 21, 2, 22, 11, 23, 3, 24, 25, 26, 4, 27, 28, 29, 7, 30, 31, 32, 3, 33, 34, 35, 8, 36, 18, 37, 9, 38, 39, 40, 10, 41, 42, 43, 1, 44, 45, 46, 11, 47, 48, 49, 5, 50, 51, 52, 12, 53, 54, 55, 4, 56, 57, 58, 13, 59, 60, 61, 14, 62, 30, 63, 15 ]
[ "nonn" ]
A039627
[ 1, 1, 3, 11, 43, 191, 884, 4195 ]
[ "nonn" ]
A090380
[ 1, 17, 265, 4737, 99721, 2934889 ]
[ "nonn", "obsc" ]
A073248
[ 10, 46, 61, 73, 82, 118, 122, 133, 145, 154, 173, 190, 205, 226, 246, 262, 273, 277, 290, 298, 313, 326, 334, 370, 373, 385, 406, 421, 426, 442, 457, 473, 478, 493, 505, 514, 526, 537, 565, 573, 586, 601, 606, 622, 626, 658, 673, 694, 709, 730, 733, 745 ]
[ "nonn" ]
A074648
[ 0, 0, 1, 5, 11, 31, 75, 91, 145, 225, 241, 319, 419, 599, 727, 949, 803, 1115, 1353, 1219, 1869, 2085, 2285, 2583, 3101, 4347, 4683, 5009, 5921, 5717, 6467, 7473, 7573, 8675, 9423, 8615, 10147, 10837, 12797, 13167, 13249, 14341, 15321 ]
[ "nonn" ]
A183726
[ 3070, 41423, 525895, 7319684, 112949014, 2740758406, 134020420595, 9546147995730, 729082624201394, 55559473375122010, 4177316401273489400, 310180873007618100000, 2.2791464284740343e+22, 1.6601737759691364e+24 ]
[ "nonn" ]
A168243
[ 1, 1, 1, 5, 11, 59, 439, 2659, 13705, 160649, 2009681, 16966421, 183312931, 2078169235, 34203787591, 657685416179, 8054585463569, 104530824746129, 2595754682459425, 39767021562661670, 758079429084897200 ]
[ "easy", "nonn" ]
A066356
[ 0, 1, 1, 2, 3, 7, 23, 167, 3925, 661271, 2609039723, 1728952269242533, 4.5165791011278205e+24, 7.812958861560975e+39, 3.5298563436210935e+64 ]
[ "nonn", "easy" ]
A231626
[ 1, 7, 13, 31, 43, 49, 61, 73, 91, 115, 121, 127, 133, 145, 151, 163, 169, 181, 187, 211, 229, 235, 241, 247, 253, 265, 283, 289, 295, 313, 325, 331, 343, 347, 355, 373, 385, 403, 409, 421, 427, 433, 451, 469, 481, 505, 511, 523, 535, 553, 565, 583, 589, 595 ]
[ "nonn" ]
A122530
[ 1, 2, 1, 3, 4, 3, 2, 5, 4, 3, 2, 6, 5, 4, 7, 6, 8, 7, 6, 5, 4, 9, 8, 7, 6, 10, 9, 8, 11, 10, 12, 11, 10, 9, 8, 7, 13, 12, 11, 10, 9, 14, 13, 12, 11, 15, 14, 13, 12, 11, 10, 9, 16, 15, 14, 13, 12, 11, 17, 16, 15, 14, 13, 12, 11, 10, 18, 17, 16, 15, 14, 13, 12, 19, 18, 17, 16, 15, 14, 20 ]
[ "base", "easy", "nonn" ]
A248902
[ 6, 7, 8, 10, 19, 21, 23, 24, 28, 33, 72, 80, 270, 271, 323, 404, 2058, 4118, 5986, 7118, 13387, 16041, 20164, 30024, 30025, 76955, 151818, 622213, 1012549, 2482211, 2482212, 6330859, 9988608, 14984623, 105181797, 180589455 ]
[ "nonn", "more" ]
A141691
[ 1, 1, 1, 1, 5, 1, 1, 15, 15, 1, 1, 37, 96, 37, 1, 1, 83, 448, 448, 83, 1, 1, 177, 1779, 3614, 1779, 177, 1, 1, 367, 6429, 23411, 23411, 6429, 367, 1, 1, 749, 21898, 132323, 234250, 132323, 21898, 749, 1, 1, 1515, 71742, 682746, 1965468, 1965468, 682746, 71742 ]
[ "nonn", "uned" ]
A234573
[ 1, 9, 126, 2109, 38916, 763686, 15636192, 330237765, 7141879503, 157366449604, 3520256293710, 79735912636302, 1825080422272800, 42148579533938780, 980892581545169500, 22980848343194477000, 541581608172776500000, 1.2829884648994116e+22, 3.053499215593993e+23 ]
[ "nonn", "easy" ]
A113349
[ 1, 14, 203, 3367, 64750, 1435497, 36312626, 1036877170, 33086963196, 1169366274321, 45412092740791, 1924418011638535, 88445828358934080, 4384910640997111000, 233384463606862050000, 1.3278878088344761e+22 ]
[ "nonn" ]
A279902
[ 0, 0, 0, 2, 4, 2, 2, 6, 6, 2, 8, 8, 9, 8, 8, 14, 18, 20, 20, 18, 14, 36, 36, 43, 56, 43, 36, 36, 74, 78, 94, 156, 156, 94, 78, 74, 168, 160, 213, 428, 601, 428, 213, 160, 168, 358, 338, 456, 1208, 2006, 2006, 1208, 456, 338, 358, 780, 700, 1003, 3316, 7383, 8384, 7383, 3316 ]
[ "nonn", "tabl" ]
A287691
[ 1, 2, 1, 2, 4, 1, 3, 7, 8, 1, 5, 12, 23, 17, 1, 6, 16, 44, 56, 29, 1, 9, 24, 78, 130, 139, 41, 1, 9, 30, 107, 214, 351, 224, 59, 1, 11, 39, 154, 332, 707, 650, 389, 76, 1, 17, 64, 261, 598, 1475, 1637, 1489, 640, 112, 1, 21, 82, 378, 902, 2496, 3155, 3782 ]
[ "nonn", "tabl" ]
A252520
[ 1093, 2492, 8354, 17804, 74181, 268555, 581529, 2449868, 9015835, 19533141, 82653526, 306473786, 663815208, 2816595425, 10483644117, 22703178745, 96473171480, 359788629017, 779072416553, 3313087720630, 12368384154874 ]
[ "nonn" ]
A381400
[ 64, 81, 256, 320, 405, 448, 512, 567, 625, 704, 729, 832, 891, 1024, 1053, 1088, 1216, 1280, 1377, 1472, 1539, 1600, 1792, 1856, 1863, 1875, 1984, 2240, 2349, 2368, 2401, 2511, 2560, 2624, 2752, 2816, 2835, 2997, 3008, 3072, 3136, 3321, 3328, 3392, 3483, 3520 ]
[ "nonn", "easy" ]
A351492
[ 1, 0, 0, 3, 6, 20, 180, 1134, 7980, 71280, 685440, 7165620, 82720440, 1036404720, 13990472496, 202812132600, 3141926096400, 51795939162240, 905465629762560, 16731527824735920, 325859956191352800, 6671593966263992000, 143254214818174160000 ]
[ "nonn" ]
A164211
[ 1, 2, 4, 8, 16, 30, 58, 112, 219, 425, 824, 1598, 3106, 6044, 11761, 22891, 44576, 86871, 169395, 330474, 645020, 1259600, 2461056, 4810942, 9409098, 18410724, 36041129, 70587539, 138310568, 271128693, 531721793, 1043226894, 2047645146, 4020760418 ]
[ "nonn" ]
A176291
[ 1, 1, 1, 1, 2, 1, 1, 13, 13, 1, 1, 58, 192, 58, 1, 1, 209, 1584, 1584, 209, 1, 1, 682, 10335, 23200, 10335, 682, 1, 1, 2125, 60267, 258745, 258745, 60267, 2125, 1, 1, 6482, 330942, 2482938, 4671488, 2482938, 330942, 6482, 1, 1, 19585, 1755262, 21702934, 69402712, 69402712, 21702934, 1755262, 19585, 1 ]
[ "nonn", "tabl" ]
A115040
[ 3, 30, 3362, 763442 ]
[ "nonn", "nice", "hard", "more", "changed" ]
A343696
[ 1, 8, 2592, 191102976, 4013162496000000, 1.132416085732098e+26, 5.078594244241246e+39, 7.597966976725993e+56, 6.028094390706362e+77 ]
[ "nonn" ]
A366820
[ 3, 3, 6, 56, 258, 6264, 52136, 1559520, 17041416, 706911048, 10102223208, 706019328000, 9101898907920, 519285252355776, 11672709747324912, 880565163670372400, 18446811354131137000, 1.7923539007537296e+21, 5.435768012588125e+22, 4.154723599066412e+24 ]
[ "nonn" ]
A121031
[ 11, 110, 1100, 1111, 1122, 1133, 1144, 1155, 1166, 1177, 1188, 1199, 2112, 2211, 3113, 3311, 4114, 4411, 5115, 5511, 6116, 6611, 7117, 7711, 8118, 8811, 9119, 9911, 11000, 11011, 11022, 11033, 11044, 11055, 11066, 11077, 11088, 11099, 11110 ]
[ "nonn", "base", "easy" ]
A148249
[ 1, 1, 2, 4, 13, 36, 120, 405, 1421, 4942, 18005, 66224, 244983, 920546, 3511295, 13437212, 51845126, 202180183, 792038001, 3115664151, 12346400803, 49158528575, 196269393640, 787327344358, 3172273111184, 12812562941630, 51906057389694, 211049230300642, 860180822317259, 3513322522503773 ]
[ "nonn", "walk" ]
A043215
[ 71, 79, 152, 160, 233, 241, 314, 322, 395, 403, 476, 484, 557, 565, 638, 711, 727, 800, 808, 881, 889, 962, 970, 1043, 1051, 1124, 1132, 1205, 1213, 1286, 1294, 1367, 1440, 1456, 1529, 1537, 1610, 1618, 1691, 1699, 1772, 1780 ]
[ "nonn", "base" ]
A118497
[ 34, 16, 37, 97, 79, 301, 151, 361, 371, 391, 322, 922, 142, 172, 772, 382, 313, 133, 943, 763, 373, 383, 793, 124, 334, 934, 754, 364, 325, 745, 395, 106, 706, 316, 916, 346, 166, 376, 196, 907, 727, 337, 937, 757, 377, 328, 358, 958, 388, 709, 929, 769, 799 ]
[ "nonn", "base", "less" ]
A289790
[ 2, 13, 72, 385, 2056, 11000, 58872, 315065, 1686086, 9023167, 48287964, 258415702, 1382925814, 7400803253, 39605804028, 211952630117, 1134276112400, 6070140759292, 32484690838716, 173843602765153, 930333564584074, 4978731041147699, 26643951936925764 ]
[ "nonn", "easy" ]
A217860
[ 1, 4, 11, 33, 88, 254, 697, 1984, 5585, 15938, 45424, 130381, 374450, 1079361, 3115291, 9010177, 26090857, 75656608, 219603868, 638075127, 1855506355, 5399995044, 15726096741, 45827313178, 133621409595, 389814176004, 1137757623214, 3322288247568, 9705228070231, 26283373417131 ]
[ "nonn" ]
A121556
[ 1, 2, 3, 6, 14, 15, 30, 35, 42, 70, 78, 105, 190, 210, 348, 357, 418, 570, 714, 910, 1045, 1144, 1254, 2090, 2296, 2730, 3135, 3432, 4060, 4522, 4674, 5278, 6270, 6888, 10168, 10659, 10824, 12180, 12441, 13566, 14630, 15834, 16770, 17160 ]
[ "nonn" ]
A310506
[ 1, 4, 10, 16, 20, 28, 28, 34, 46, 46, 50, 54, 62, 68, 72, 80, 76, 88, 96, 96, 108, 100, 112, 124, 120, 132, 128, 140, 146, 146, 162, 150, 166, 174, 168, 188, 176, 192, 202, 192, 212, 204, 220, 224, 218, 240, 224, 248, 254, 240 ]
[ "nonn" ]
A142130
[ 317, 613, 761, 983, 1279, 1427, 1723, 1871, 2389, 2833, 3203, 3499, 3943, 4091, 4831, 5867, 6089, 6163, 6311, 6607, 6829, 6977, 7643, 7717, 8087, 8161, 8753, 9049, 9419, 10159, 10529, 10973, 11047, 11491, 12157, 12379, 12527, 12601, 12823, 13267, 13711 ]
[ "nonn", "easy" ]
A353413
[ 1, 1, 3, 5, 1, 7, 11, 3, 13, 17, 5, 19, 9, 1, 23, 29, 7, 15, 31, 11, 37, 41, 3, 43, 25, 13, 47, 21, 17, 53, 59, 5, 33, 61, 19, 67, 71, 9, 35, 73, 1, 79, 39, 23, 83, 55, 29, 51, 89, 7, 97, 101, 15, 103, 107, 31, 109, 57, 11, 65, 49, 37, 27, 113, 41, 127, 85, 3, 131, 137, 43, 77, 69, 25, 139, 149, 13, 87, 151, 47, 95 ]
[ "nonn" ]
A233546
[ 11, 35, 65, 41, 221, 655, 515, 263, 4265, 893, 4085, 1031, 3161, 145, 821, 2083, 2101, 433, 3743, 2243, 511, 2623, 5653, 271, 2885, 4157, 18023, 9023, 1151, 4787, 737, 2141, 2833, 6181, 3217, 3635, 715, 4501, 5381, 4231, 13265, 823 ]
[ "nonn" ]
A111087
[ 1, 8, 12, 16, 18, 20, 24, 27, 28, 30, 32, 36, 40, 42, 44, 45, 48, 50, 52, 54, 56, 60, 63, 64, 66, 68, 70, 72, 75, 76, 78, 80, 81, 84, 88, 90, 92, 96, 98, 99, 100, 102, 104, 105, 108, 110, 112, 114, 116, 117, 120, 124, 125, 126, 128, 130, 132, 135, 136, 138, 140, 144 ]
[ "easy", "nonn" ]
A191116
[ 1, 5, 13, 21, 37, 53, 61, 85, 109, 149, 157, 181, 213, 245, 253, 325, 341, 437, 445, 469, 541, 597, 629, 637, 725, 733, 757, 853, 973, 981, 1013, 1021, 1301, 1309, 1333, 1365, 1405, 1621, 1749, 1781, 1789, 1877, 1885, 1909, 2165, 2173, 2197, 2269, 2389, 2517, 2549, 2557, 2901, 2917, 2933, 2941, 3029, 3037, 3061, 3413 ]
[ "nonn" ]
A295941
[ 9, 228, 1472, 13759, 187960, 1806751, 18443146, 209884397, 2194039726, 23114496074, 250737152204, 2666387434693, 28362029670087, 304008030250023, 3243803575844852, 34600198967882188, 369797120031656640 ]
[ "nonn" ]
A254366
[ 35, 56, 112, 272, 760, 2336, 7672, 26432, 94360, 346016, 1295032, 4923392, 18943960, 73568096, 287731192, 1131465152, 4467809560, 17697740576, 70271780152, 279532195712, 1113469251160, 4439908895456, 17717752225912, 70745400779072, 282604862628760 ]
[ "nonn", "easy" ]
A354762
[ 0, 1, 1, 1, 3, 3, 1, 3, 1, 1, 6, 6, 1, 6, 1, 1, 6, 3, 10, 10, 1, 10, 1, 1, 10, 3, 10, 3, 1, 15, 15, 1, 15, 1, 1, 15, 3, 15, 3, 1, 15, 3, 1, 1, 21, 21, 1, 21, 1, 1, 21, 3, 21, 3, 1, 21, 3, 1, 1, 21, 6, 28, 28, 1, 28, 1, 1, 28, 3, 28, 3, 1, 28, 3, 1, 1, 28, 6, 28, 6, 1 ]
[ "nonn", "easy", "tabf" ]
A293001
[ 1, 3, 5, 15, 17, 37, 49, 80, 91, 107, 176, 343, 452, 599, 914, 1393, 1513, 2057, 3332, 6477 ]
[ "nonn", "more", "hard" ]
A135751
[ 1, 1, 3, 17, 154, 2024, 36188, 841196, 24583200, 880119000, 37813650672, 1917155945616, 113110111375776, 7674684562897728, 592864081434168700, 51688751369089360000, 5.047456043997924e+21, 5.483617882691654e+23 ]
[ "nonn" ]
A315681
[ 1, 6, 12, 17, 22, 27, 31, 35, 40, 45, 50, 56, 62, 68, 74, 79, 84, 89, 93, 97, 102, 107, 112, 118, 124, 130, 136, 141, 146, 151, 155, 159, 164, 169, 174, 180, 186, 192, 198, 203, 208, 213, 217, 221, 226, 231, 236, 242, 248, 254 ]
[ "nonn" ]
A303562
[ 1, 1, 6, 50, 490, 5187, 59080, 675012, 8723880, 84841130, 2106192682, -26974249302, 2765793096248, -163142299607490, 11813146551718560, -906751607066476000, 75382006693375800000, -6.718584345560313e+21, 6.395735130552269e+23, -6.476046504670714e+25, 6.950351671309757e+27 ]
[ "sign" ]
A162743
[ 1, 6, 30, 135, 600, 2640, 11610, 51000, 224040, 984060, 4322400, 18985440, 83390760, 366280800, 1608831840, 7066542960, 31038691200, 136332618240, 598819808160, 2630222793600, 11552844224640, 50744069991360 ]
[ "nonn" ]
A119131
[ 1, 13, 313, 538, 13741, 43386, 48886, 991886, 141415133, 2880781113, 4721227413, 19567549258, 538423521386, 137473211871979930000 ]
[ "nonn", "base", "more" ]
A271992
[ 16, 80, 169, 310, 515, 795, 1163, 1631, 2211, 2915, 3755, 4742, 5889, 7208, 8711, 10410, 12317, 14444, 16803, 19406, 22265, 25392, 28799, 32472, 36447, 40736, 45351, 50304, 55607, 61272, 67311, 73736, 80559, 87792, 95447, 103536, 112071 ]
[ "nonn", "fini" ]
A032904
[ 1, 2, 3, 4, 5, 6, 7, 8, 14, 15, 16, 21, 22, 23, 24, 28, 29, 30, 31, 32, 35, 36, 37, 38, 39, 40, 42, 43, 44, 45, 46, 47, 48, 56, 57, 63, 64, 65, 70, 71, 72, 73, 77, 78, 79, 80, 81, 84, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 96, 97, 112, 113, 114, 119, 120, 121, 122, 126, 127 ]
[ "nonn", "base" ]
A182105
[ 1, 1, 2, 1, 1, 2, 4, 1, 1, 2, 1, 1, 2, 4, 8, 1, 1, 2, 1, 1, 2, 4, 1, 1, 2, 1, 1, 2, 4, 8, 16, 1, 1, 2, 1, 1, 2, 4, 1, 1, 2, 1, 1, 2, 4, 8, 1, 1, 2, 1, 1, 2, 4, 1, 1, 2, 1, 1, 2, 4, 8, 16, 32, 1, 1, 2, 1, 1, 2, 4, 1, 1, 2, 1, 1, 2, 4, 8, 1, 1, 2, 1, 1, 2, 4, 1, 1, 2, 1, 1, 2, 4, 8, 16, 1, 1, 2, 1, 1, 2, 4, 1, 1, 2, 1, 1, 2, 4, 8 ]
[ "nonn", "easy", "changed" ]
A291294
[ 2, 2, 2, 3, 5, 7, 10, 13, 20, 30, 44, 65 ]
[ "nonn", "more" ]
A215415
[ 0, -1, 1, 3, 2, 1, 3, 5, 4, 3, 5, 7, 6, 5, 7, 9, 8, 7, 9, 11, 10, 9, 11, 13, 12, 11, 13, 15, 14, 13, 15, 17, 16, 15, 17, 19, 18, 17, 19, 21, 20, 19, 21, 23, 22, 21, 23, 25, 24, 23, 25, 27, 26, 25, 27, 29, 28, 27, 29, 31, 30, 29, 31, 33, 32, 31, 33, 35, 34, 33, 35, 37 ]
[ "sign", "easy", "less" ]
A084827
[ 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 3, 4, 4, 4, 6, 6, 6, 7, 8, 8, 9, 9, 10, 10, 12, 12, 13, 13, 13, 14, 14, 15, 15, 16, 16, 17, 18, 18, 19, 19, 19, 20, 21, 21, 21, 22, 22, 23, 23, 23, 25, 25, 26, 26, 26, 27, 28, 28, 29, 29, 30, 31, 31, 32, 33, 33, 34, 34, 35, 36, 36, 38, 38, 38, 38, 39, 39, 40, 40, 42, 42, 42, 43, 43, 44 ]
[ "hard", "nonn", "changed" ]
A278302
[ 0, 32, 4558, 2360544, 6345491150, 100825279690194, 10174217016822817000, 6.850575319751106e+24 ]
[ "nonn" ]
A166314
[ 1, 1, 1, 3, 3, 1, 3, 4, 3, 4, 3, 3, 5, 4, 4, 5, 3, 4, 4, 7, 5, 4, 7, 4, 5, 4, 3, 7, 6, 5, 5, 6, 3, 4, 4, 7, 6, 3, 6, 5, 6, 7, 4, 7, 9, 3, 5, 5, 5, 5, 7, 7, 6, 5, 7, 4, 7, 7, 5, 8, 7, 6, 6, 7, 3, 4, 4, 7, 6, 5, 7, 9, 5, 6, 6, 6, 9, 8, 4, 6, 6, 8, 6, 9, 9, 5, 8, 9, 8, 8, 1, 6, 7, 4, 6, 6, 5, 5, 7, 8, 9, 3, 5, 8, 7 ]
[ "nonn", "base", "easy" ]
A026054
[ 13, 28, 50, 80, 119, 168, 228, 300, 385, 484, 598, 728, 875, 1040, 1224, 1428, 1653, 1900, 2170, 2464, 2783, 3128, 3500, 3900, 4329, 4788, 5278, 5800, 6355, 6944, 7568, 8228, 8925, 9660, 10434, 11248, 12103, 13000, 13940, 14924, 15953, 17028, 18150, 19320, 20539, 21808, 23128, 24500, 25925 ]
[ "nonn", "easy" ]
A347996
[ 1, 2, 9, 42, 213, 1265, 8751 ]
[ "nonn", "more" ]
A238764
[ 4, 20, 36, 50, 54, 64, 112, 120, 180, 192, 210, 220, 240, 270, 288, 300, 364, 392, 425, 432, 448, 450, 504, 528, 550, 560, 624, 648, 729, 748, 750, 756, 792, 858, 918, 924, 936, 972, 975, 988, 1040, 1134, 1188, 1190, 1210, 1274, 1280, 1300, 1326, 1372, 1400, 1428, 1440, 1456, 1472, 1539 ]
[ "nonn", "easy" ]
A334021
[ 2, 3, 7, 1420, 2505, 11860, 64060, 64485, 113413, 158020, 205365, 332658, 465272, 522764, 611085, 614538, 635053, 664033, 748484, 771138, 839213, 881565, 1011793, 1090788, 1190685, 1248645, 1306605, 1488088, 1607367, 1613190, 1836018, 1884914, 1911940, 2286913 ]
[ "nonn" ]
A329307
[ 28, 60, 72, 92, 99, 100, 124, 147, 156, 180, 188, 207, 220, 275, 284, 315, 316, 348, 380, 412, 423, 444, 475, 476, 504, 507, 508, 531, 572, 600, 604, 612, 636, 639, 668, 676, 732, 747, 764, 775, 796, 847, 855, 860, 892, 924, 931, 936, 956, 963, 968, 975, 980, 988, 1020 ]
[ "nonn" ]
A120838
[ 2, 8, 706, 1972808, 152630937346, 298024071165562560, 1.4551915378461488e+25, 1.7763568394241804e+34, 5.421010862427556e+44 ]
[ "nonn", "easy" ]
A029395
[ 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 2, 2, 1, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 8, 8, 8, 10, 9, 10, 11, 11, 12, 12, 13, 14, 14, 15, 16, 16, 17, 18, 19, 20, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 40 ]
[ "nonn" ]
A077955
[ 1, 1, -1, -4, -3, 6, 16, 7, -31, -61, -6, 147, 220, -68, -655, -739, 639, 2772, 2233, -3950, -11188, -5521, 20805, 43035, 6946, -99929, -156856, 36056, 449697, 534441, -401009, -1919588, -1652011, 2588174, 7811784, 4287447, -13924295, -30310973, -6749830, 67796411, 111607044, -17235948 ]
[ "sign", "easy" ]
A218570
[ 1, 1, 3, 3, 7, 8, 14, 18, 28, 34, 51, 63, 86, 108, 144, 175, 229, 278, 351, 425, 529, 630, 775, 919, 1109, 1309, 1565, 1827, 2167, 2518, 2952, 3414, 3975, 4563, 5281, 6036, 6931, 7889, 9012, 10200, 11598, 13078, 14785, 16613, 18704, 20925, 23470, 26174, 29229 ]
[ "nonn" ]
A237447
[ 1, 2, 2, 3, 1, 3, 4, 3, 1, 4, 5, 4, 2, 1, 5, 6, 5, 4, 2, 1, 6, 7, 6, 5, 3, 2, 1, 7, 8, 7, 6, 5, 3, 2, 1, 8, 9, 8, 7, 6, 4, 3, 2, 1, 9, 10, 9, 8, 7, 6, 4, 3, 2, 1, 10, 11, 10, 9, 8, 7, 5, 4, 3, 2, 1, 11, 12, 11, 10, 9, 8, 7, 5, 4, 3, 2, 1, 12, 13, 12, 11, 10, 9, 8, 6, 5, 4, 3, 2, 1, 13, 14, 13, 12, 11, 10, 9, 8, 6, 5, 4, 3, 2, 1, 14, 15, 14, 13, 12, 11, 10, 9, 7, 6, 5, 4, 3, 2, 1, 15 ]
[ "nonn", "easy", "tabl" ]
A359491
[ 2, 3, 5, 7, 333, 23532, 33165, 77322, 175175, 232152, 321372, 373212, 515375, 712236, 2249232, 2321232, 2971332, 3372138, 3611322, 4313331, 5773131, 12322332, 23147124, 42323112, 72325232, 113338575, 123221232, 132232224, 172232112, 212322912, 221437272, 273233331 ]
[ "nonn", "base" ]
A106205
[ 1, 31, -2848, 413823, -68767135, 12310047967, -2309368876639, 447436508910495, -88755684988520800, 17924937024841839000, -3.671642907594608e+21, 7.607221832341285e+23, -1.5910570656024796e+26 ]
[ "sign" ]
A367825
[ 1, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 2, 1, 2, 1, 1, 5, 5, 5, 5, 1, 1, 3, 3, 1, 3, 3, 1, 1, 7, 7, 7, 7, 7, 7, 1, 1, 4, 2, 4, 1, 4, 2, 4, 1, 1, 9, 9, 3, 9, 9, 3, 9, 9, 1, 10, 5, 5, 5, 5, 1, 5, 5, 5, 5, 1, 1, 1, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 4, 6, 12, 2, 3, 6, 1, 6, 3, 2, 3, 6, 1 ]
[ "nonn", "base", "frac", "tabl" ]
A237212
[ 256, 1076, 4770, 22420, 107092, 523218, 2580120, 12870804, 64634026, 326922108, 1661903764, 8491149474, 43548443400, 224187558716, 1157390767538, 5992234819668, 31088874374020, 161649774718450, 841795869921768 ]
[ "nonn" ]
A063110
[ 5, 20, 36, 52, 68, 84, 100, 116, 132, 148, 164, 180, 196, 212, 228, 244, 260, 276, 292, 308, 324, 340, 356, 372, 388, 404, 420, 436, 452, 468, 484, 500, 516, 532, 548, 564, 580, 596, 612, 628, 644, 660, 676, 692, 708, 724, 740, 756, 772, 788 ]
[ "nonn" ]
A182520
[ 1, 2, 8, 42, 264, 1916, 15744, 144546, 1467544, 16335972, 197916768, 2593286692, 36547123728, 551308006392, 8863973173120, 151328667184530, 2734113089546040, 52120618871199060, 1045503182929422200, 22014065919151444000, 485475449631284100000 ]
[ "nonn" ]
A325917
[ 1, 2, 4, 8, 16, 32, 65, 136, 298, 691, 1694, 4340, 11433, 30510, 81592, 217238, 573970, 1503296, 3904181, 10065079, 25796324, 65837541, 167602092, 426213784, 1084095329, 2760717190, 7043305930, 18008810836, 46151503544, 118529776510, 304998080821 ]
[ "nonn" ]
A171106
[ 1, 1, 7, 138, 5477, 367640, 37541883, 5432772352, 1059075055273, 267757626501504, 85244466165571540, 33379687015338240000, 1.5770655073870516e+22, 8.847780392111931e+24, 5.815426547948881e+27, 4.426738320076693e+30, 3.863757059392099e+33 ]
[ "nonn" ]
A379248
[ 1, 2, 4, 6, 8, 10, 12, 9, 3, 18, 15, 25, 5, 50, 16, 14, 20, 22, 24, 26, 28, 30, 27, 21, 36, 32, 34, 40, 38, 44, 42, 45, 33, 54, 39, 63, 48, 46, 52, 56, 49, 7, 98, 35, 75, 55, 100, 58, 60, 62, 64, 66, 68, 70, 72, 51, 81, 57, 90, 69, 99, 78, 76, 74, 80, 82, 84, 86, 88, 92, 94, 96, 104, 102, 108, 87, 117, 93, 126, 111, 135, 114, 112, 106, 116, 110, 121, 11, 242 ]
[ "nonn", "look" ]
A035116
[ 1, 4, 4, 9, 4, 16, 4, 16, 9, 16, 4, 36, 4, 16, 16, 25, 4, 36, 4, 36, 16, 16, 4, 64, 9, 16, 16, 36, 4, 64, 4, 36, 16, 16, 16, 81, 4, 16, 16, 64, 4, 64, 4, 36, 36, 16, 4, 100, 9, 36, 16, 36, 4, 64, 16, 64, 16, 16, 4, 144, 4, 16 ]
[ "nonn", "easy", "mult", "changed" ]
A284622
[ 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1 ]
[ "nonn", "easy" ]
A317472
[ 2844, 3059, 3071, 3081, 3269, 3283, 3287, 3289, 3292, 3302, 3306, 3307, 3327, 3462, 3468, 3469, 3470, 3471, 3514, 3517, 3518, 3520, 3521, 3525, 3526, 3536, 3539, 3540, 3541, 3551, 3563, 3639, 3644, 3707, 3708, 3714, 3719, 3721, 3729 ]
[ "nonn" ]
A176381
[ 0, 413, 2874480, 20006380387, 139244404619040, 969141036142138000, 6.745221472304876e+21, 4.69467404781009e+25, 3.267493069823608e+29 ]
[ "nonn", "easy" ]
A338852
[ 3, 7, 15, 35, 79, 183, 427, 995, 2319, 5411, 12623, 29451, 68719, 160343, 374131, 872971, 2036931, 4752839, 11089955, 25876559, 60378635, 140883479, 328728115, 767032267, 1789741955, 4176064559, 9744150635, 22736351479, 53051486783 ]
[ "nonn" ]
A364962
[ 1, 3, 5, 11, 19, 23, 31, 37, 41, 43, 47, 53, 59, 61, 71, 73, 79, 83, 85, 89, 97, 101, 103, 107, 109, 113, 127 ]
[ "nonn", "hard", "more" ]
A350938
[ 1, 1, 11, 296, 14502, 1153889, 134713213, 21788125930 ]
[ "nonn", "hard", "more" ]