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 A033555 #7 Oct 03 2016 14:59:28 %S A033555 2,4,8,248,17608,90148,106978,253828,364808 %N A033555 Duplicate of A130134. %K A033555 dead %O A033555 1,1 %A A033555 _David W. Wilson_