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A131034 A129686 * A051340. 2
1, 2, 1, 4, 1, 1, 6, 2, 1, 1, 8, 2, 2, 1, 1, 10, 2, 2, 2, 1, 12, 2, 2, 2, 2, 1, 1, 14, 2, 2, 2, 2, 2, 1, 1, 16, 2, 2, 2, 2, 2, 2, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Row sums = A113127: (1, 3, 6, 10, 14, 18, 22,...).

LINKS

Table of n, a(n) for n=0..43.

FORMULA

A129686 * A051340 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

2, 1;

4, 1, 1;

6, 2, 1, 1;

8, 2, 2, 1, 1;

10, 2, 2, 2, 1, 1;

...

CROSSREFS

Cf. A129686, A051340, A113127.

Sequence in context: A131035 A118745 A235671 * A130313 A247073 A124428

Adjacent sequences:  A131031 A131032 A131033 * A131035 A131036 A131037

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jun 10 2007

STATUS

approved

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Last modified September 24 04:42 EDT 2020. Contains 337317 sequences. (Running on oeis4.)