A152201 Triangle read by rows, A000012 * A152198.

1, 2, 3, 1, 4, 2, 5, 4, 1, 6, 6, 2, 7, 9, 5, 1, 8, 12, 8, 2, 9, 16, 14, 6, 1, 10, 20, 20, 10, 2, 11, 25, 30, 20, 7, 1, 12, 30, 40, 30, 12, 2, 13, 36, 55, 50, 27, 8, 1

Offset: 0

Author

Gary W. Adamson, Nov 29 2008

Keywords

• nonn
• tabl

Comments

Row sums = A027383: (1, 2, 4, 6, 10, 14, 22, 30,...).

Examples

			First few rows of the triangle =
1;
2;
3, 1;
4, 2;
5, 4, 1;
6, 6, 2;
7, 9, 5, 1;
8, 12, 8, 2;
9, 16, 14, 6, 1;
10, 10, 20, 20, 2;
11, 25, 30, 20, 7, 1;
12, 30, 40, 30, 12, 2;
13, 36, 55, 50, 27, 8, 1;
...
		

Crossrefs

A152198, A027383

Formula

A000012 * A152198 = partial sums of A152198 column terms.