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 A076629 #3 Nov 10 2007 03:00:00 %S A076629 1,5,8585,16119,29886159 %N A076629 Duplicate of A067816. %K A076629 dead %O A076629 1,2