A226821 - OEIS

A226821

Numbers of the form 3^j + 8^k, for j and k >= 0.

2, 4, 9, 10, 11, 17, 28, 35, 65, 67, 73, 82, 89, 91, 145, 244, 251, 307, 513, 515, 521, 539, 593, 730, 737, 755, 793, 1241, 2188, 2195, 2251, 2699, 4097, 4099, 4105, 4123, 4177, 4339, 4825, 6283, 6562, 6569, 6625, 7073, 10657, 19684, 19691, 19747, 20195, 23779

(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 = 3; b = 8; mx = 25000; 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: A267414 A072583 A178488 * A047465 A365343 A002258

Adjacent sequences: A226818 A226819 A226820 * A226822 A226823 A226824

KEYWORD

nonn

AUTHOR

T. D. Noe, Jun 19 2013

STATUS

approved