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 A026295 #3 Mar 30 2012 18:56:05 %S A026295 1,3,14,72,385,2110,11757,66298,377245,2161771,12458186,72130114, %T A026295 419239101,2444741300,14296415880,83807317674,492339686501, %U A026295 2897788821746,17084275066796,100873614561368 %N A026295 a(n) = T(2n,n-1), where T is the array in A026268. %K A026295 nonn %O A026295 1,2 %A A026295 _Clark Kimberling_