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 A023622 #3 Mar 30 2012 18:55:53 %S A023622 2,11,30,65,128,234,410,700,1173,1945,3198,5230,8524,13858,22493, %T A023622 36470,59089,95694,154926,250770,405854,656789,1062817,1719788, %U A023622 2782794,4502780,7285780 %N A023622 Convolution of Lucas numbers and A001950. %K A023622 nonn %O A023622 1,1 %A A023622 _Clark Kimberling_