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A226826 Numbers of the form 2^j + 9^k, for j and k >= 0. 1
2, 3, 5, 9, 10, 11, 13, 17, 25, 33, 41, 65, 73, 82, 83, 85, 89, 97, 113, 129, 137, 145, 209, 257, 265, 337, 513, 521, 593, 730, 731, 733, 737, 745, 761, 793, 857, 985, 1025, 1033, 1105, 1241, 1753, 2049, 2057, 2129, 2777, 4097, 4105, 4177, 4825, 6562, 6563 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
a = 2; b = 9; mx = 7000; 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: A072735 A127149 A047606 * A333607 A047370 A226820
KEYWORD
nonn
AUTHOR
T. D. Noe, Jun 19 2013
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)