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 A005992 M0353 #6 Jun 01 2010 03:00:00 %S A005992 1,1,2,2,6,4,18,16,48,60 %N A005992 Erroneous version of A011260. %D A005992 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %K A005992 dead %O A005992 1,3