A130452 Triangle read by rows: A097806 * A130321 as infinite lower triangular matrices.

1, 3, 1, 6, 3, 1, 12, 6, 3, 1, 24, 12, 6, 3, 1, 48, 24, 12, 6, 3, 1, 96, 48, 24, 12, 6, 3, 1, 192, 96, 48, 24, 12, 6, 3, 1, 384, 192, 96, 48, 24, 12, 6, 3, 1, 768, 384, 192, 96, 48, 24, 12, 6, 3, 1, 1536, 768, 384, 192, 96, 48, 24, 12, 6, 3, 1, 3072, 1536, 768, 384, 192, 96, 48, 24, 12, 6, 3, 1

Offset: 1

Author

Gary W. Adamson, May 26 2007

Keywords

• nonn
• tabl

Comments

Row sums = A033484: (1, 4, 10, 22, 46, 94, 190, ...).

Examples

			First few rows of the triangle:
   1;
   3,  1;
   6,  3,  1;
  12,  6,  3,  1;
  24, 12,  6,  3,  1;
  48, 24, 12,  6,  3,  1;
  ...
		

Crossrefs

Cf. A003945, A033484, A097806, A130321.

Formula

A097806 * A130321 as infinite lower triangular matrices. A097806 = the pairwise operator, A130321 = [1; 2,1; 4,2,1; ...]. Triangle, A003945 (1, 3, 6, 12, 24, 48, ...) in every column.

Extensions

a(28) = 1 inserted and more terms from Georg Fischer, May 29 2023