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A131033 A051340 * A097806. 3
1, 3, 1, 4, 2, 1, 5, 2, 2, 1, 6, 2, 2, 2, 1, 7, 2, 2, 2, 2, 1, 8, 2, 2, 2, 2, 2, 1, 9, 2, 2, 2, 2, 2, 1, 10, 2, 2, 2, 2, 2, 2, 2, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row sums = A016777: (1, 4, 7, 10, 13,...). A131032 = a097806 * A051340

LINKS

Table of n, a(n) for n=1..44.

FORMULA

A051340 * A097806 as infinite lower triangular matrices; where A051340 = (1; 2,1; 3,1,1;...) and A097806 = the pairwise operator.

EXAMPLE

First few rows of the triangle are:

1;

3, 1;

4, 2, 1;

5, 2, 2, 1;

6, 2, 2, 2, 1;

7, 2, 2, 2, 2, 1;

...

CROSSREFS

Cf. A051340, A097806, A016777.

Sequence in context: A020851 A190457 A179833 * A135821 A289205 A283866

Adjacent sequences:  A131030 A131031 A131032 * A131034 A131035 A131036

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jun 10 2007

STATUS

approved

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Last modified March 25 07:12 EDT 2019. Contains 321468 sequences. (Running on oeis4.)