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 A198898 #13 Sep 29 2012 12:45:41 %S A198898 1,1,1,2,1,2,1,1,1,3,2,3,3,3,3,3,3,3,2,4 %N A198898 Rank of elliptic curve y^2 = x^3 - A179386(n). %Y A198898 Cf. A179386, A198897. %K A198898 nonn,hard,more %O A198898 1,4 %A A198898 _Artur Jasinski_, Oct 31 2011