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A129558 A054523 * A129360. 0
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; refs; listen; history; text; internal format)
OFFSET

1,7

COMMENTS

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

LINKS

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

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: A195982 A102761 A231119 * A267181 A131185 A307819

Adjacent sequences:  A129555 A129556 A129557 * A129559 A129560 A129561

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Apr 20 2007

STATUS

approved

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Last modified May 12 07:28 EDT 2021. Contains 343821 sequences. (Running on oeis4.)