A137631 Left border of triangle A137629.

1, 2, 4, 7, 11, 18, 26, 39, 55, 79, 106, 150, 196, 267

Offset: 1

Author

Gary W. Adamson, Jan 31 2008

Keywords

• nonn

Examples

			a(4) = 7 = (3, 1, 0, 1) dot (1, 1, 2, 3), where (3, 1, 0, 1) = row 4 of the partition triangle A026794 and (1, 1, 2, 3) = the first 4 terms of A000041.
		

Crossrefs

Cf. A000041, A026794, A137629.

Formula

A026794 * A000041 = product of the partition triangle and the partitions of n.