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 A151992 #1 Jun 01 2010 03:00:00 %S A151992 1,2,4,7,11,19,43,67,163 %N A151992 Erroneous version of A003173. %D A151992 Seen on the Web. Included here to serve as a pointer to the correct version. %K A151992 dead %O A151992 1,2