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A130452 A097806 * A130321. 1
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, 192, 96, 48, 24, 12, 6, 3, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

LINKS

Table of n, a(n) for n=1..35.

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 are:

1;

3, 1;

6, 3, 1;

12, 6, 3, 1;

24, 12, 6, 3, 1;

48, 24, 12, 6, 3, 1;

...

CROSSREFS

Cf. A130321, A097806, A003945, A003484.

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

STATUS

approved

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Last modified July 4 16:24 EDT 2020. Contains 335448 sequences. (Running on oeis4.)