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A129558 A054523 * A129360. +0
1
1, 1, 1, 1, 0, 1, 2, 1, 0, 1, 3, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 5, 0, 0, 0, 0, 0, 1, 4, 2, 0, 1, 0, 0, 0, 1, 4, 0, 1, 0, 0, 0, 0, 0, 1, 3, 3, 0, 0, 1, 0, 0, 0, 0, 1 (list; table; graph; listen)
OFFSET

1,7

COMMENT

Row sums = A062570, phi(2*n): (1, 2, 2, 4, 4, 4, 6, 8,...)

FORMULA

A054523 * A129360 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

1, 1;

1, 0, 1;

2, 1, 0, 1;

3, 0, 0, 0, 1;

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

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

4, 2, 0, 1, 0, 0, 0, 1;

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

...

CROSSREFS

Cf. A054523, A129360, A062570.

Sequence in context: A074766 A138107 A089631 this_sequence A131185 A052249 A030528

Adjacent sequences: A129555 A129556 A129557 this_sequence A129559 A129560 A129561

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Apr 20 2007

page 1

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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