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 A023597 #3 Mar 30 2012 18:55:53 %S A023597 1,3,5,11,18,30,51,84,137,222,362,587,952,1541,2494,4038,6535,10576, %T A023597 17114,27692,44807,72502,117312,189817,307132,496952,804086,1301039, %U A023597 2105128,3406170,5511301,8917474 %N A023597 Convolution of A023532 and Lucas numbers. %K A023597 nonn %O A023597 1,2 %A A023597 _Clark Kimberling_