A131052 A131047 * A000012.

1, 2, 2, 4, 3, 3, 8, 8, 4, 4, 16, 15, 15, 5, 5, 32, 32, 26, 26, 6, 6, 64, 63, 63, 42, 42, 7, 7, 128, 128, 120, 120, 64, 64, 8, 8

Offset: 1

Author

Gary W. Adamson, Jun 12 2007

Keywords

• nonn
• tabl

Comments

Row sums = A087447: (1, 4, 10, 24, 56, ...). A131053 = A000012 * A131047.

Examples

			First few rows of the triangle:
   1;
   2,  2;
   4,  3,  3;
   8,  8,  4,  4;
  16, 15, 15,  5,  5;
  32, 32, 26, 26,  6,  6;
  64, 63, 63, 42, 42,  7,  7;
  ...
		

Crossrefs

Cf. A131047, A087447, A131053.

Formula

A131047 * A000012 as infinite lower triangular matrices.