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

1,1

Comments

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

Links

Table of n, a(n) for n=1..55.

Formula

A054524 * A000012 as infinite lower triangular matrices.

Example

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.

Sequence in context: A155031 A134540 A318962 * A176330 A363914 A266246

Adjacent sequences: A128427 A128428 A128429 * A128431 A128432 A128433

Keyword

tabl,sign

Author

Gary W. Adamson, Mar 02 2007

Status

approved