A130459 A059268 * A097806.

1, 3, 2, 3, 6, 4, 3, 6, 12, 8, 3, 6, 12, 24, 16, 3, 6, 12, 24, 48, 32, 3, 6, 12, 24, 48, 96, 64, 3, 6, 12, 24, 48, 96, 192, 128, 3, 6, 12, 24, 48, 96, 192, 384, 256

Offset

1,2

Comments

Row sums = A036563 starting (1, 5, 13, 29, 61, 125, ...).

Links

Table of n, a(n) for n=1..45.

Formula

A059268 * A097806 as infinite lower triangular matrices. A059268 = [1; 1,2; 1,2,4; ...]. A097806 = the pairwise operator.

Example

First few rows of the triangle:
  1;
  3, 2;
  3, 6,  4;
  3, 6, 12,  8;
  3, 6, 12, 24, 16;
  3, 6, 12, 24, 48, 32;
  ...

Crossrefs

Cf. A059268, A097806, A036563.

Sequence in context: A113128 A220075 A266593 * A323621 A144216 A127938

Adjacent sequences: A130456 A130457 A130458 * A130460 A130461 A130462

Keyword

nonn,tabl

Author

Gary W. Adamson, May 26 2007

Status

approved