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 A243163 #6 Jan 22 2022 16:48:32 %S A243163 1,0,1,0,1,3,0,0,7,12,0,0,4,45,55,0,0,0,55,286,273,0,0,0,22,546,1820, %T A243163 1428,0,0,0,0,455,4760,11628,7752,0,0,0,0,140,6120,38760,74613,43263, %U A243163 0,0,0,0,0,3876,67830,302841,480700,246675,0,0,0,0,0,969,65835 %N A243163 Triangle read by rows: T(n,k) = binomial(k,n-k)*binomial(n+2*k,n+k) /(n+k+1), n>=0, 0<=k<=n. %F A243163 T(n, n) = A001764(n). %F A243163 T(2*n,n) = A002293(n). %F A243163 Sum_{k=0..n} T(n, k) = A186997(n). %e A243163 1; %e A243163 0, 1; %e A243163 0, 1, 3; %e A243163 0, 0, 7, 12; %e A243163 0, 0, 4, 45, 55; %e A243163 0, 0, 0, 55, 286, 273; %p A243163 T := (n, k) -> binomial(k,n-k)*binomial(n+2*k,n+k)/(n+k+1); %p A243163 seq(print(seq(T(n,k), k=0..n)), n=0..10); %Y A243163 Cf. A001764, A002293, A186997. %K A243163 nonn,tabl %O A243163 0,6 %A A243163 _Peter Luschny_, May 31 2014