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 A059733 #3 Mar 30 2012 16:49:03 %S A059733 1,1,2,3,10,41,1682,346493,120057399050,51458022952549550101, %T A059733 2647928126185116317725365841617509110202, %U A059733 505756353132539355991535788904396967700352784465846135098293311191732045 %N A059733 Central column a(n,[n/2]) of A059922. %K A059733 nonn %O A059733 0,3 %A A059733 _N. J. A. Sloane_, Feb 09 2001