A131336 - OEIS

A131336

A131334 * A000012.

1, 1, 1, 2, 1, 1, 3, 3, 2, 1, 5, 4, 4, 2, 1, 8, 8, 7, 5, 3, 1, 13, 12, 12, 9, 7, 3, 1, 21, 21, 20, 17, 14, 8, 4, 1, 34, 33, 33, 29, 26, 17, 11, 4, 1, 55, 55, 54, 50, 46, 34, 25, 12, 5, 1

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

1,4

COMMENTS

Left border = Fibonacci numbers. Row sums = A131337.

LINKS

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

FORMULA

A131334 * A000012, (partial row sums of A131334 starting from the right).

EXAMPLE

First few rows of the triangle are:

1, 1;

2, 1, 1;

3, 3, 2, 1;

5, 4, 4, 2, 1;

8, 8, 7, 5, 3, 1;

13, 12, 12, 9, 7, 3, 1;

21, 21, 20 17, 14, 8, 4, 1;

...

CROSSREFS

Cf. A131334, A131332, A131333, A131335, A131337.

Sequence in context: A153859 A363394 A368343 * A052253 A271453 A247749

Adjacent sequences: A131333 A131334 A131335 * A131337 A131338 A131339

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jun 29 2007

STATUS

approved