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 A092977 #3 Jul 19 2005 03:00:00 %S A092977 2,3,7,5,11,7,43,17,19,11,23,13,79,29,31,17,103,19,457,41,43,23,47,577 %N A092977 Duplicate of A057218. %K A092977 dead %O A092977 1,1