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 A023600 #3 Mar 30 2012 18:55:53 %S A023600 1,2,4,8,13,22,37,61,99,161,262,425,689,1115,1805,2922,4729,7653, %T A023600 12384,20038,32423,52463,84888,137353,222243,359598,581842,941441, %U A023600 1523285,2464728,3988015,6452745 %N A023600 Convolution of A023532 and (F(2), F(3), F(4), ...). %K A023600 nonn %O A023600 1,2 %A A023600 _Clark Kimberling_