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 A086745 #4 May 11 2007 03:00:00 %S A086745 1,1,1,5,6,1,61,75,15,1,1385,1708,350,28,1,50521,62325,12810,1050,45,1 %N A086745 Duplicate of A086646. %K A086745 dead %O A086745 0,4