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 A025097 #3 Mar 30 2012 18:56:01 %S A025097 1,1,3,1,4,8,15,15,25,23,40,37,62,55,91,73,120,196,318,316,514,511, %T A025097 829,822,1332,1314,2128,2081,3369,3246,5254,4932,7982,7138,11550,9342, %U A025097 15117,24462,39582,39571,64029,64000,103556,103480,167436,167237,270597,270076,436994 %N A025097 s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Lucas numbers), t = A014306. %K A025097 nonn %O A025097 1,3 %A A025097 _Clark Kimberling_