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 A048222 #5 Mar 30 2012 18:56:54
%S A048222 2,4,16,40,80,134,218,338,482,682,924,1212,1537,1901,2381,2909,3487,
%T A048222 4153,4875,5695,6640,7674,8778,10050,11450,12984,14631,16367,18223,
%U A048222 20263,22402,24770,27278,29896,32626,35542,38650,41956
%N A048222 a(n)=Sum{T(n,j): j=1,2,...,n}, array T given by A048212.
%K A048222 nonn
%O A048222 1,1
%A A048222 _Clark Kimberling_