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A128618 A128174 * A127647. 1
1, 0, 1, 1, 0, 1, 0, 1, 0, 3, 1, 0, 2, 0, 5, 0, 1, 0, 3, 0, 8, 1, 0, 2, 0, 5, 0, 13, 0, 1, 0, 3, 0, 8, 0, 21, 1, 0, 2, 0, 5, 0, 13, 0, 34, 0, 1, 0, 3, 0, 8, 0, 21, 0, 55 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,10

COMMENTS

Row sums = A052952: (1, 1, 3, 4, 8, 12, 21, 33,...). A128619 = A127647 * A128174.

LINKS

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

FORMULA

A128174 * A127647 as infinite lower triangular matrices. By columns, F(k) interspersed with alternate zeros in every column, k=1,2,3,...

EXAMPLE

First few rows of the triangle are:

1;

0, 1;

1, 0, 2;

0, 1, 0, 3;

1, 0, 2, 0, 5;

...

CROSSREFS

Cf. A128174, A127647, A052952, A000045.

Sequence in context: A103879 A051722 A166408 * A284826 A101548 A117430

Adjacent sequences:  A128615 A128616 A128617 * A128619 A128620 A128621

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Mar 14 2007

STATUS

approved

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Last modified December 13 14:58 EST 2017. Contains 295958 sequences.