A128256 A004736(signed) * A007318.

1, -1, 1, 2, 0, 1, -2, 2, 1, 1, 3, 0, 3, 2, 1, -3, 3, 3, 5, 3, 1, 4, 0, 6, 8, 8, 4, 1, -4, 4, 6, 14, 16, 12, 5, 1, 5, 0, 10, 20, 30, 28, 17, 6, 1, -5, 5, 10, 30, 50, 58, 45, 23, 7, 1

Offset: 1

Author

Gary W. Adamson, Feb 21 2007

Keywords

• tabl
• sign

Examples

			First few rows of the triangle are:
  1;
  -1, 1;
  2, 0, 1;
  -2, 2, 1, 1;
  3, 0, 3, 2, 1;
  -3, 3, 3, 5, 3, 1;
  4, 0, 6, 8, 8, 4, 1;
  -4, 4, 6, 14, 16, 12, 5, 1;
  5, 0, 10, 10, 30, 28, 17, 6, 1;
  ...
		

Crossrefs

Cf. A004736, A007318, A053088 (row sums).

Formula

A004736(with alternate signs: (1; -2,1; 3,-2,1;...)) * A007318, Pascal's triangle.