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 A037206 #15 Mar 30 2012 16:47:44 %S A037206 0,1,8,3,24,5,48,7,80,9,120,11,168,13,224,15,288,17,360,19,440,21,528 %N A037206 Duplicate of A065530. %K A037206 dead %O A037206 2,3 %A A037206 _N. J. A. Sloane_, Dec 30 2011