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 A026076 #3 Mar 30 2012 18:56:04 %S A026076 1,2,12,62,339,1882,10594,60216,344846,1986620,11499940,66835540, %T A026076 389741279,2279233530,13362109050,78505098150,462109616730, %U A026076 2724728263348,16089931091944,95141866318652 %N A026076 a(n) = T(2n,n-1), where T is the array defined in A024996. %K A026076 nonn %O A026076 1,2 %A A026076 _Clark Kimberling_