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 A050162 #6 Mar 30 2012 18:57:01
%S A050162 0,1,1,4,5,6,14,20,27,28,48,75,110,119,120,165,275,429,483,494,495,
%T A050162 572,1001,1638,1911,1988,2001,2002,2002,3640,6188,7448,7888,7992,8007,
%U A050162 8008,7072,13260,23256,28764,31008,31671,31806,31823
%N A050162 T(n,k)=S(2n+2,n-1,k-1), 0<=k<=n, n >= 0, array S as in A050157.
%F A050162 T(n, k)=Sum{t(n, j): 0<=j<=k}, array t as in A050154.
%e A050162 Rows: {0}; {1,1}; {4,5,6}; ...
%K A050162 nonn,tabl
%O A050162 0,4
%A A050162 _Clark Kimberling_