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 A115003 #1 Feb 24 2006 03:00:00
%S A115003 4,9,19,35,62,101,162,242,361,511,719,975,1323,1728,2271,2895,3695,
%T A115003 4610,5776,7056,8681,10466,12653,15053,18000,21120,24968,29064,33944,
%U A115003 39164,45404,51884,59693,67838
%N A115003 Sum_{k=1}^n J_4(k)/240.
%C A115003 See A115000 for further information.
%K A115003 nonn
%O A115003 5,1
%A A115003 Franklin T. Adams-Watters, Dec 10 2005