A128430 Triangle read by rows: A054524 * A000012.

1, 0, -1, 0, -1, -1, 0, -1, 0, 0, 0, -1, -1, -1, -1, 0, -1, 0, 1, 1, 1, 0, -1, -1, -1, -1, -1, -1, 0, -1, 0, 0, 0, 0, 0, 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 1, 1, 1, 1, 1

Offset: 1

Author

Gary W. Adamson, Mar 02 2007

Keywords

• tabl
• sign

Comments

Right border = mu(n), A008683. Row sums = A023900: (1, -1, -2, -1, -4, 2, -6, -1, ...). A054524 = A051731 * A128407.

Examples

			First few rows of the triangle:
  1;
  0, -1;
  0, -1, -1;
  0, -1,  0,  0;
  0, -1, -1, -1, -1;
  0, -1,  0,  1,  1,  1;
  0, -1, -1, -1, -1, -1, -1;
  0, -1,  0,  0,  0,  0,  0,  0;
  ...
		

Crossrefs

Cf. A054524, A000012, A051731, A128407, A008683, A023900.

Formula

A054524 * A000012 as infinite lower triangular matrices.