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A129571 A129360 * A007318. 1
1, 1, 1, 0, 2, 1, 1, 3, 3, 1, 0, 4, 6, 4, 1, 0, 4, 10, 10, 5, 1, 0, 6, 15, 20, 15, 6, 1, 1, 7, 21, 35, 35, 21, 7, 1, 0, 6, 27, 56, 70, 56, 28, 8, 1, 0, 8, 36, 84, 126, 126, 84, 36, 9, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

First 10 row sums match A128022: (1, 2, 3, 8, 15, 30, 63, 128, 252, 510,...). A129570 = A007318 * A129360.

LINKS

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

FORMULA

A129360 * A007318 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

1, 1;

0, 2, 1;

1, 3, 3, 1;

0, 4, 6, 4, 1;

0, 4, 10, 10, 5, 1;

0, 6, 15, 20, 15, 6, 1;

1, 7, 21, 35, 35, 21, 7, 1;

...

CROSSREFS

Cf. A007318, A129360, A128022, A129570.

Sequence in context: A204015 A216210 A186332 * A180180 A034931 A248473

Adjacent sequences:  A129568 A129569 A129570 * A129572 A129573 A129574

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Apr 22 2007

STATUS

approved

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Last modified September 17 06:52 EDT 2019. Contains 327119 sequences. (Running on oeis4.)