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 A025087 #3 Mar 30 2012 18:56:01 %S A025087 1,1,1,1,2,4,7,7,11,11,18,17,28,25,41,33,54,88,142,142,230,229,371, %T A025087 368,596,588,952,931,1507,1452,2350,2206,3570,3192,5166,4178,6761, %U A025087 10940,17702,17697,28635,28622,46312,46278,74880,74791,121015,120782,195430,194820,315226 %N A025087 s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Fibonacci numbers), t = A014306. %K A025087 nonn %O A025087 1,5 %A A025087 _Clark Kimberling_