A157030 Triangle read by rows, A156834 * A054521.

1, 2, 0, 2, 1, 0, 4, 0, 1, 0, 2, 1, 1, 1, 0, 8, 3, 0, 0, 1, 0, 2, 1, 1, 1, 1, 1, 0, 10, 0, 5, 0, 1, 0, 1, 0, 8, 7, 0, 1, 1, 0, 1, 1, 0, 12, 5, 6, 5, 0, 0, 10, 1, 0, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 34, 10, 10, 0, 7, 0, 10, 0, 0, 1, 0

Offset: 1

Author

Gary W. Adamson and Mats Granvik, Feb 21 2009

Keywords

• nonn
• tabl
• more

Comments

Left border = A157019: (1, 2, 2, 4, 2, 8, 2, 10,...).

Examples

			First few rows of the triangle =
1;
2, 0;
2, 1, 0;
4, 0, 1, 0;
2, 1, 1, 1, 0;
8, 3, 0, 0, 1, 0;
2, 1, 1, 1, 1, 1, 0;
10, 0, 5, 0, 1, 0, 1, 0;
8, 7, 0, 1, 1, 0, 1, 1, 0;
12, 5, 6, 5, 0, 0, 10, 1, 0;
2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0;
34, 10, 10, 0, 7, 0, 1, 0, 0, 0, 1, 0;
2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0;
...
		

Crossrefs

Cf. A156834 (row sums), A054521.

Formula

Triangle read by rows, A156834 * A054521; as infinite lower triangular matrices.