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 A086126 #4 May 11 2007 03:00:00 %S A086126 61,101,1811,3491,4091,5711,5801,6361,7121,10391,10771,11311,13421, %T A086126 15131 %N A086126 Duplicate of A023287. %K A086126 dead %O A086126 1,1