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 A077137 #4 May 11 2007 03:00:00 %S A077137 2,4,9,16,25,64,289,729,1681,2401,3481,4096,5041,7921,10201,15625 %N A077137 Duplicate of A023194. %K A077137 dead %O A077137 1,1