A050159 T(n,k) = S(2n-1,n-1,k-1), 0<=k<=n, n >= 0, array S as in A050157.

0, 1, 1, 1, 2, 3, 2, 5, 9, 10, 5, 14, 28, 34, 35, 14, 42, 90, 117, 125, 126, 42, 132, 297, 407, 451, 461, 462, 132, 429, 1001, 1430, 1638, 1703, 1715, 1716, 429, 1430, 3432, 5070, 5980, 6330, 6420, 6434, 6435, 1430, 4862, 11934, 18122

Offset: 0

Author

Clark Kimberling

Keywords

• nonn
• tabl

Examples

			Rows: {0}; {1,1}; {1,2,3}; ...
		

Crossrefs

Cf. A050144, A050157.

Formula

T(n, k) = Sum_{t(n, j): 0<=j<=k}, array t as in A050144.