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 A026093 #3 Mar 30 2012 18:56:04 %S A026093 1,3,27,156,925,5427,31812,186485,1094211,6428346,37817163,222778629, %T A026093 1314116799,7761414055,45894511305,271681161390,1609919112321, %U A026093 9549113626206,56690129330346,336829717243428 %N A026093 T(2n,n+1), where T is the array defined in A026082. %K A026093 nonn %O A026093 1,2 %A A026093 _Clark Kimberling_