A226826 Numbers of the form 2^j + 9^k, for j and k >= 0.

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

Offset

1,1

Links

T. D. Noe, Table of n, a(n) for n = 1..10000

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

Adjacent sequences: A226823 A226824 A226825 * A226827 A226828 A226829

Keyword

nonn

Author

T. D. Noe, Jun 19 2013

Status

approved