T(n, k) = binomial(2*n - k, k - 1)*hypergeom([2, 2, 1 - k], [1, 2*(1 - k + n)], -1), triangle read by rows, T(n,k) for n >= 0 and 0 <= k <= n.

A320906

T(n, k) = binomial(2*n - k, k - 1)*hypergeom([2, 2, 1 - k], [1, 2*(1 - k + n)], -1), triangle read by rows, T(n,k) for n >= 0 and 0 <= k <= n.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =0a(4) =1a(5) =6a(6) =0a(7) =1a(8) =8a(9) =24a(10) =0a(11) =1a(12) =10a(13) =39a(14) =80a(15) =0a(16) =1a(17) =12a(18) =58a(19) =150a(20) =240a(21) =0a(22) =1a(23) =14a(24) =81a(25) =256a(26) =501a(27) =672a(28) =0a(29) =1

External references