A226813 Numbers of the form 4^j + 6^k, for j and k >= 0.

2, 5, 7, 10, 17, 22, 37, 40, 52, 65, 70, 100, 217, 220, 232, 257, 262, 280, 292, 472, 1025, 1030, 1060, 1240, 1297, 1300, 1312, 1360, 1552, 2320, 4097, 4102, 4132, 4312, 5392, 7777, 7780, 7792, 7840, 8032, 8800, 11872, 16385, 16390, 16420, 16600, 17680, 24160

Offset: 1

Author

T. D. Noe, Jun 19 2013

Keywords

• nonn

Links

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

Crossrefs

Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k).

Programs

Mathematica

a = 4; b = 6; mx = 25000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]