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 A062795 #3 May 11 2007 03:00:00 %S A062795 0,1,3,7,27,121,729,5041,40347,362887,3628923,39916801,479002353 %N A062795 Duplicate of A062363. %K A062795 dead %O A062795 0,3