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 A226826 #3 Jun 19 2013 02:28:10
%S A226826 2,3,5,9,10,11,13,17,25,33,41,65,73,82,83,85,89,97,113,129,137,145,
%T A226826 209,257,265,337,513,521,593,730,731,733,737,745,761,793,857,985,1025,
%U A226826 1033,1105,1241,1753,2049,2057,2129,2777,4097,4105,4177,4825,6562,6563
%N A226826 Numbers of the form 2^j + 9^k, for j and k >= 0.
%H A226826 T. D. Noe, <a href="/A226826/b226826.txt">Table of n, a(n) for n = 1..10000</a>
%t A226826 a = 2; b = 9; mx = 7000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]
%Y A226826 Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k).
%K A226826 nonn
%O A226826 1,1
%A A226826 _T. D. Noe_, Jun 19 2013