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

1,2

Comments

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

Links

Table of n, a(n) for n=1..78.

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.

Example

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.

Sequence in context: A065567 A100861 A131031 * A133085 A039805 A094504

Adjacent sequences: A130449 A130450 A130451 * A130453 A130454 A130455

Keyword

nonn,tabl

Author

Gary W. Adamson, May 26 2007

Extensions

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

Status

approved