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 A037181 #10 Jan 24 2006 03:00:00 %S A037181 1,2,1,0,2,3,0,6,8,4,63,1,316,42,16,2048,7652,13781,8,24000,11977, %T A037181 458561,152116956851941670912,1054535,53,26,27,59,4806078,3,35792568, %U A037181 3010349,2387010102192469724605148123694256128,2,0,53,43,0,4696,173,44583,1111111111111111111111111111111111111111111 %N A037181 Incorrect version of A107357. %K A037181 dead %O A037181 1,2