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 A082310 #4 May 11 2007 03:00:00 %S A082310 0,1,7,57,455,3641,29127,233017,1864135,14913081,119304647,954437177 %N A082310 Duplicate of A015565. %K A082310 dead %O A082310 0,3