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 A104440 #3 May 20 2014 14:52:32 %S A104440 1,135135,1161,161,125,119,117,116,116,116,116,116,116,116,116,116 %N A104440 Number of ways to split 1, 2, 3, ..., 7n into 7 arithmetic progressions each with n terms. %Y A104440 Cf. A104429-A104439, A104441-A104443. %K A104440 nonn %O A104440 1,2 %A A104440 _Jonas Wallgren_, Mar 17 2005