A129236 A054525 * A129234.

1, 1, 2, 2, 0, 3, 2, 1, 0, 4, 4, 0, 0, 0, 5, 2, 2, 1, 0, 0, 6, 6, 0, 0, 0, 0, 0, 7, 4, 2, 0, 1, 0, 0, 0, 8, 6, 0, 2, 0, 0, 0, 0, 0, 9, 4, 4, 0, 0, 1, 0, 0, 0, 0, 10

Offset: 1

Author

Gary W. Adamson, Apr 05 2007

Keywords

• nonn
• tabl

Comments

Left border = phi(n), A000010: (1, 1, 2, 2, 4, 2, 6, ...). A129237 = inverse Moebius transform of A129234.

Examples

			First few rows of the triangle:
  1;
  1, 2;
  2, 0, 3;
  2, 1, 0, 4;
  4, 0, 0, 0, 5;
  2, 2, 1, 0, 0, 6;
  6, 0, 0, 0, 0, 0, 7;
  4, 2, 0, 1, 0, 0, 0, 8;
  ...
		

Crossrefs

Cf. A129234, A129235, A129237.

Formula

A054525 * A129234 as infinite lower triangular matrices.