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 A057904 Positive integers that are not the sum of exactly three positive cubes. 3
 1, 2, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59, 60, 61, 63, 64, 65, 67, 68, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79, 82, 83, 84 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS A025456(a(n)) = 0. [From Reinhard Zumkeller, Apr 23 2009] LINKS T. D. Noe, Table of n, a(n) for n=1..1000 Eric Weisstein's World of Mathematics, Cubic Number. MATHEMATICA Select[Range[100], Count[ PowersRepresentations[#, 3, 3], pr_List /; FreeQ[pr, 0]] == 0 &] (* Jean-François Alcover, Oct 31 2012 *) CROSSREFS Cf. A003072 (Complement) Sequence in context: A183301 A308065 A047318 * A188397 A027925 A247419 Adjacent sequences:  A057901 A057902 A057903 * A057905 A057906 A057907 KEYWORD nonn AUTHOR STATUS approved

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Last modified October 13 19:47 EDT 2019. Contains 327981 sequences. (Running on oeis4.)