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 A094447 Sum of two cubes divisible by 13. 8
 65, 91, 351, 468, 520, 559, 637, 728, 793, 1001, 1027, 1339, 1456, 1547, 1729, 1755, 2457, 2808, 3718, 3744, 3887, 4160, 4394, 4472, 4706, 4914, 4940, 5096, 5642, 5824, 6175, 6344, 7163, 7202, 7371, 7657, 8008, 8125, 8190, 8216, 9009 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 EXAMPLE Sums not divisible by 13 are shown in asterisks: ....|...1....8...27...64...125...216...343...512...729..1000..1331 ------------------------------------------------------------------ 1...|...*....*....*...65.....*.....*.....*.....*.....*..1001.....* 8...|...*....*....*....*.....*.....*...351...520.....*.....*..1339 27..|...*....*....*...91.....*.....*.....*.....*.....*..1027.....* 64..|..65....*...91....*.....*.....*.....*.....*...793.....*.....* 125.|...*....*....*....*.....*.....*...468...637.....*.....*..1456 216.|...*....*....*....*.....*.....*...559...728.....*.....*..1547 343.|...*..351....*....*...468...559.....*.....*.....*.....*.....* 512.|...*..520....*....*...637...728.....*.....*.....*.....*.....* 729.|...*....*....*..793.....*.....*.....*.....*.....*..1729.....* 1000|1001....*.1027....*.....*.....*.....*.....*..1729.....*.....* 1331|...*.1339....*....*..1456..1547.....*.....*.....*.....*.....* MATHEMATICA Select[Union[Total/@(Tuples[Range[30], 2]^3)], Divisible[#, 13]&] (* Vincenzo Librandi, May 08 2013 *) CROSSREFS Sequence in context: A020140 A283656 A020194 * A020224 A063519 A299456 Adjacent sequences:  A094444 A094445 A094446 * A094448 A094449 A094450 KEYWORD nonn,easy AUTHOR Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Jun 09 2004 STATUS approved

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Last modified October 15 23:54 EDT 2019. Contains 328038 sequences. (Running on oeis4.)