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 A118284 #3 Mar 30 2012 17:22:42 %S A118284 0,0,307,2027,18180,10795,87740,75150,122818,146970,585513 %N A118284 Conjectured largest number that is not the sum of three generalized (2n+1)-gonal numbers; bisection of A118282. %Y A118284 Cf. A118278-A118285. %K A118284 nonn %O A118284 1,3 %A A118284 _T. D. Noe_, Apr 21 2006; revised Apr 23 2006