A178650 Triangle read by rows A051731 * A070909.

1, 2, 1, 2, 0, 1, 3, 1, 1, 1, 2, 0, 1, 0, 1, 4, 1, 2, 0, 1, 1, 2, 0, 1, 0, 1, 0, 1, 4, 1, 2, 1, 1, 0, 1, 1, 3, 0, 2, 0, 1, 0, 1, 0, 1, 4, 1, 2, 0, 2, 0, 1, 0, 1, 1, 2, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 6, 1, 4, 1, 2, 1, 1, 0, 1, 0, 1, 1

Offset: 1

Author

Gary W. Adamson, May 31 2010

Keywords

• nonn
• tabf

Comments

Row sums = A069734: (1, 3, 3, 6, 4, 9, 5, 11,...)

Left border = d(n), A000005

Examples

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

Crossrefs

Cf. A051731, A070909, A069734.

Formula

As infinite lower triangular matrices, A051731 * A070909; where A051731 = the inverse Mobius transform.