A153345 Triangle read by rows, A000012 * A055830.

1, 2, 0, 4, 1, 0, 7, 4, 1, 0, 12, 11, 5, 1, 0, 20, 26, 17, 6, 1, 0, 33, 56, 48, 24, 7, 1, 0, 54, 114, 121, 78, 32, 8, 1, 0, 88, 223, 283, 223, 117, 41, 9, 1, 0, 143, 424, 627, 584, 372, 166, 51, 10, 1, 0, 232, 789, 1334, 1434, 1073, 579, 226, 62, 11, 1, 0, 376, 1444, 2750, 3352, 2879, 1818, 856, 298, 74, 12, 1, 0

Offset: 1

Author

Gary W. Adamson, Dec 24 2008

Keywords

• nonn
• tabl

Comments

Row sums = Pell numbers, A000129: (1, 2, 5, 12, 29,...).

Left border = A000071.

Examples

			First few rows of the triangle =
1;
2, 0;
4, 1, 0;
7, 4, 1, 0;
12, 11, 5, 1, 0;
20, 26, 17, 6, 1, 0;
33, 56, 48, 24, 7, 1, 0;
54, 114, 121, 78, 32, 8, 1, 0;
88, 223, 283, 223, 117, 41, 9, 1, 0;
143, 424, 627, 584, 372, 166, 51, 10, 1, 0;
232, 789, 1334, 1434, 1073, 579, 226, 62, 11, 1, 0;
...
		

Crossrefs

Cf. A000129, A055830.

Formula

Triangle read by rows, A000012 * triangle A055830 = partial sums of A055830 columns.

Extensions

a(21) = 0 inserted and more terms from Georg Fischer, May 29 2023