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A129560 A054523 * A128174. 0
1, 1, 1, 3, 0, 1, 3, 2, 0, 1, 7, 0, 1, 0, 1, 5, 4, 1, 1, 0, 1, 13, 0, 1, 0, 1, 0, 1, 9, 6, 1, 2, 0, 1, 0, 1, 19, 0, 3, 0, 1, 0, 1, 0, 1, 13, 10, 1, 2, 1, 1, 0, 1, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Row sums = A002620: (1, 2, 4, 6, 9, 12, 16, 20,...). Left column = A106477: (1, 1, 3, 3, 7, 5, 13, 9, 19,...).

LINKS

Table of n, a(n) for n=1..55.

FORMULA

A054523 * A128174 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

1, 1;

3, 0, 1;

3, 2, 0, 1;

7, 0, 1, 0, 1;

5, 4, 1, 1, 0, 1;

13, 0, 1, 0, 1, 0, 1;

...

CROSSREFS

Cf. A054523, A128174, A106477, A002620.

Sequence in context: A035650 A084475 A130028 * A218603 A207032 A169940

Adjacent sequences:  A129557 A129558 A129559 * A129561 A129562 A129563

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Apr 20 2007

STATUS

approved

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Last modified August 10 19:52 EDT 2020. Contains 336381 sequences. (Running on oeis4.)