A130831 Irregular triangle read by rows: row(n) contains the first A001146(n) terms of A001316.

1, 2, 1, 2, 2, 4, 1, 2, 2, 4, 2, 4, 4, 8, 2, 4, 4, 8, 4, 8, 8, 16, 1, 2, 2, 4, 2, 4, 4, 8, 2, 4, 4, 8, 4, 8, 8, 16, 2, 4, 4, 8, 4, 8, 8, 16, 4, 8, 8, 16, 8, 16, 16, 32, 2, 4, 4, 8, 4, 8, 8, 16, 4, 8, 8, 16, 8, 16, 16, 32, 4, 8, 8, 16, 8, 16, 16, 32, 8, 16, 16, 32, 16, 32, 32, 64, 2, 4, 4, 8, 4, 8, 8, 16

Offset: 1

Author

Roger L. Bagula, Aug 20 2007

Keywords

• nonn
• less
• tabf

Comments

The n-th row of the triangle consists of the first A001146(n) terms of A001316. - Benjamin Heiland, Dec 12 2011

Examples

			Triangle begins:
{1, 2},
{1, 2, 2, 4},
{1, 2, 2, 4, 2, 4, 4, 8, 2, 4, 4, 8, 4, 8, 8, 16}
...
		

Crossrefs

Cf. A001146, A060803, A130830.

Extensions

Edited by N. J. A. Sloane, Jun 07 2008

New name using Benjamin Heiland's comment, Joerg Arndt, May 11 2023