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 A050164 #6 Mar 30 2012 18:57:01
%S A050164 1,4,5,14,20,21,48,75,83,84,165,275,319,329,330,572,1001,1209,1274,
%T A050164 1286,1287,2002,3640,4550,4900,4990,5004,5005,7072,13260,17068,18768,
%U A050164 19312,19431,19447,19448
%N A050164 T(n,k)=S(2n+3,n+3,k+3), 0<=k<=n, n >= 0, array S as in A050157.
%F A050164 T(n, k)=Sum{t(n, j): 0<=j<=k}, array t as in A050156.
%e A050164 Rows: {1}; {4,5}; {14,20,21}; ...
%K A050164 nonn,tabl
%O A050164 0,2
%A A050164 _Clark Kimberling_