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 A082805 #5 Jun 29 2008 03:00:00 %S A082805 2,3,5,7,131,151,353,373,727,757,929,11311,31513,33533,37273,37573 %N A082805 Duplicate of A071119. %K A082805 dead %O A082805 1,1