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 A086750 #5 May 11 2007 03:00:00 %S A086750 5,16,47,106,233,412,689,1020,1451,2050,2759,3678,4741,5894,7191,8714 %N A086750 Duplicate of A086749. %K A086750 dead %O A086750 1,1