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 A226808 Numbers of the form 2^j + 5^k, for j and k >= 0. 1
 2, 3, 5, 6, 7, 9, 13, 17, 21, 26, 27, 29, 33, 37, 41, 57, 65, 69, 89, 126, 127, 129, 133, 141, 153, 157, 189, 253, 257, 261, 281, 381, 513, 517, 537, 626, 627, 629, 633, 637, 641, 657, 689, 753, 881, 1025, 1029, 1049, 1137, 1149, 1649, 2049, 2053, 2073, 2173 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS T. D. Noe, Table of n, a(n) for n = 1..10000 MATHEMATICA a = 2; b = 5; mx = 3000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]] CROSSREFS Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k). Sequence in context: A074780 A292938 A056900 * A096594 A100693 A030159 Adjacent sequences:  A226805 A226806 A226807 * A226809 A226810 A226811 KEYWORD nonn AUTHOR T. D. Noe, Jun 19 2013 STATUS approved

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Last modified August 8 19:29 EDT 2020. Contains 336298 sequences. (Running on oeis4.)