A169589 A number triangle with repeated columns of triangle in A039599.

1, 1, 1, 2, 1, 1, 5, 2, 3, 1, 14, 5, 9, 3, 1, 42, 14, 28, 9, 5, 1, 132, 42, 90, 28, 20, 5, 1, 429, 132, 297, 90, 75, 20, 7, 1, 1430, 429, 1001, 297, 275, 75, 35, 7, 1, 4862, 1430, 3432, 1001, 1001, 275, 154, 35, 9, 1, 16796, 4862, 11934, 3432, 3640, 1001, 637, 154, 54, 9, 1

Offset: 0

Author

Philippe Deléham, Dec 02 2009

Keywords

• nonn
• tabl

Comments

Row sums : A135339.

Examples

			Triangle begins : 1 ; 1,1 ; 2,1,1 ; 5,2,3,1 ; 14,5,9,3,1 ; 42,14,28,20,5,1 ; ...
		

Crossrefs

Cf. A000012, A109613, A000108

Formula

Sum_{k, 0<=k<=n} T(n,k)= A135339(n+1). T(n,0)= A000108(n).

Extensions

Corrected by Philippe Deléham, Dec 04 2009