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A226813 Numbers of the form 4^j + 6^k, for j and k >= 0. 1

%I #3 Jun 19 2013 02:25:54

%S 2,5,7,10,17,22,37,40,52,65,70,100,217,220,232,257,262,280,292,472,

%T 1025,1030,1060,1240,1297,1300,1312,1360,1552,2320,4097,4102,4132,

%U 4312,5392,7777,7780,7792,7840,8032,8800,11872,16385,16390,16420,16600,17680,24160

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

%H T. D. Noe, <a href="/A226813/b226813.txt">Table of n, a(n) for n = 1..10000</a>

%t 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]}]]]

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

%K nonn

%O 1,1

%A _T. D. Noe_, Jun 19 2013

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Last modified April 25 05:56 EDT 2024. Contains 371964 sequences. (Running on oeis4.)