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 A075459 #4 Nov 10 2007 03:00:00 %S A075459 2,38,110,3066,60020,740282,2340038,29380602,957565746 %N A075459 Duplicate of A050248. %K A075459 dead %O A075459 1,1