This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A226792 #3 Jun 19 2013 13:23:06
%S A226792 1,3,4,6,13,16,25,27,37,63,66,87,172,174,184,234,313,316,337,484,1201,
%T A226792 1203,1213,1263,1513,1563,1566,1587,1734,2763,7813,7816,7837,7984,
%U A226792 8404,8406,8416,8466,8716,9013,9966,16216,39063,39066,39087,39234
%N A226792 Numbers of the form (5^j + 7^k)/2, for j and k >= 0.
%t A226792 a = 5; b = 7; mx = 80000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]/2
%Y A226792 Cf. A226818 (5^j + 7^k).
%K A226792 nonn
%O A226792 1,2
%A A226792 _T. D. Noe_, Jun 19 2013