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 A086387 #4 May 11 2007 03:00:00 %S A086387 3,5,2,5,3,5,7,3,2,3,2,3,3,3,2,7,5,2,7,3,3,7,5,5,2,7,5,2,3,7,2,2,2,3,2 %N A086387 Duplicate of A073264. %K A086387 dead %O A086387 0,1