A143517 Triangle read by rows, A054525 * (A061397 * 0^(n-k)), 1<=k<=n.

0, 0, 2, 0, 0, 3, 0, -2, 0, 0, 0, 0, 0, 0, 5, 0, -2, -3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 0, 0, 0, 0, 0, 0, 0, -2, 0, 0, -5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13

Offset: 1

Author

Gary W. Adamson, Aug 22 2008

Keywords

• tabl
• sign

Comments

Row sums = A137851: (0, 2, 3, -2, 5, -5, 7, 0, -3,...).

Right border = A061397: (0, 2, 3, 0, 5, 0, 7,...).

Examples

			First few rows of the triangle =
0;
0, 2;
0, 0, 3;
0, -2, 0, 0;
0, 0, 0, 0, 5;
0, -2, -3, 0, 0, 0;
0, 0, 0, 0, 0, 0, 7;
...
		

Crossrefs

Cf. A054525, A061397, A137851.

Formula

Triangle read by rows, A054525 * (A061397 * 0^(n-k)), 1<=k<=n