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 A144710 #6 Jan 30 2011 16:23:33 %S A144710 15,65,77,87,247,285,301,357,481 %N A144710 Erroneous version of A070007. %K A144710 dead %O A144710 1,1