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 A091303 #6 Mar 31 2012 13:20:56 %S A091303 1,14,118,926,7311,59982,517496,4717222,45484301,463683670,4991117034, %T A091303 56630860638,676055834971,8475491147678,111376106002732, %U A091303 1531384454297174,21993657178539321,329402210042157606 %N A091303 Third diagonal of A008970 (after A000111 and A000708). %K A091303 nonn,easy %O A091303 1,2 %A A091303 _N. J. A. Sloane_, Feb 21 2004 %E A091303 More terms from _David Wasserman_, Feb 28 2006