



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
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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



