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A226790
Numbers of the form (3^j + 5^k)/2, for j and k >= 0.
1
1, 2, 3, 4, 5, 7, 13, 14, 16, 17, 26, 41, 43, 53, 63, 64, 67, 76, 103, 122, 124, 134, 184, 313, 314, 317, 326, 353, 365, 367, 377, 427, 434, 677, 1094, 1096, 1106, 1156, 1406, 1563, 1564, 1567, 1576, 1603, 1684, 1927, 2656, 3281, 3283, 3293, 3343, 3593
OFFSET
1,2
MATHEMATICA
a = 3; b = 5; mx = 8000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]/2
CROSSREFS
Cf. A226809 (3^j + 5^k).
Sequence in context: A137357 A100676 A193769 * A275575 A066661 A268199
KEYWORD
nonn
AUTHOR
T. D. Noe, Jun 19 2013
STATUS
approved