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 A151615 #2 Mar 30 2012 16:51:03 %S A151615 2,22,360,7880,216240,7124880,273463680 %N A151615 Row sums of A057282. %p A151615 # read in A057282 as list called s1 %p A151615 f:=n->add(s1[i],i=n*(n-1)/2+1..n*(n+1)/2); [seq(f(n),n=1..7)]; %K A151615 nonn %O A151615 1,1 %A A151615 _N. J. A. Sloane_, May 29 2009