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A128618 A128174 * A127647. +0
2
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; listen)
OFFSET

1,10

COMMENT

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

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: A034374 A103879 A051722 this_sequence A101548 A117430 A002726

Adjacent sequences: A128615 A128616 A128617 this_sequence A128619 A128620 A128621

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Mar 14 2007

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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