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A133735 A000012 * A133734. 1
1, 2, 0, 3, 0, 1, 4, 0, 2, 1, 5, 0, 3, 2, 2, 6, 0, 4, 3, 4, 2, 7, 0, 5, 4, 6, 4, 4, 8, 0, 6, 5, 8, 6, 8, 4, 9, 0, 7, 6, 10, 8, 12, 8, 7, 10, 0, 8, 7, 12, 10, 16, 12, 14, 8 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Row sums = A000070: (1, 2, 4, 7, 12, 19, 30, 45,...). Right border = A002865: (1, 0, 1, 1, 2, 2, 4, 4, 7, 8,...).

LINKS

Table of n, a(n) for n=0..54.

FORMULA

A000012 * A133734 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

2, 0;

3, 0, 1;

4, 0, 2, 1;

5, 0, 3, 2, 2;

6, 0, 4, 3, 4, 2;

7, 0, 5, 4, 6, 4, 4;

8, 0, 6, 5, 8, 6, 8, 4;

9, 0, 7, 6, 10, 8, 12, 8, 7;

...

CROSSREFS

Cf. A133734, A000070.

Sequence in context: A236138 A035614 A212138 * A238801 A095704 A163496

Adjacent sequences:  A133732 A133733 A133734 * A133736 A133737 A133738

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Sep 22 2007

STATUS

approved

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Last modified November 22 00:32 EST 2019. Contains 329383 sequences. (Running on oeis4.)