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 A025110 #3 Mar 30 2012 18:56:01 %S A025110 1,1,2,1,3,6,11,11,18,17,29,27,45,40,66,53,87,142,230,229,372,370,600, %T A025110 595,964,951,1540,1506,2438,2349,3802,3569,5776,5165,8358,6760,10939, %U A025110 17701,28642,28634,46332,46311,74934,74879,121158,121014,195806,195429,316212 %N A025110 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (F(2), F(3), F(4), ...), t = A014306. %K A025110 nonn %O A025110 1,3 %A A025110 _Clark Kimberling_