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 A141624 #2 Mar 30 2012 18:51:59 %S A141624 2,6,6,6,6,6,-2,6,2,-2,2,6,6,-6,-6,-18,-18,-14,-14,-18,-18,-22 %N A141624 A008846 (5, 13, 17, 25, ...) - A002145 (3, 7, 11, 19, ...). %K A141624 sign %O A141624 0,1 %A A141624 _Paul Curtz_, Aug 24 2008