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A133701 A133698 * A051731. +0
3
1, 1, 1, 2, 0, 2, 1, 1, 0, 1, 2, 0, 0, 0, 2, 2, 2, 2, 0, 0, 2, 2, 0, 0, 0, 0, 0, 2, 1, 1, 0, 1, 0, 0, 0, 1, 3, 0, 3, 0, 0, 0, 0, 0, 3, 2, 2, 0, 0, 2, 0, 0, 0, 0, 2 (list; table; graph; listen)
OFFSET

1,4

COMMENT

Left and right borders = A001227: (1, 1, 2, 1, 2, 2, 2,...), the number of odd divisors of n. Row sums = A133702, the inverse Mobius transform of A023136.

FORMULA

A133698 * A051731 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

1, 1;

2, 0, 2;

1, 1, 0, 1;

2, 0, 0, 0, 2;

2, 2, 2, 0, 0, 2;

2, 0, 0, 0, 0, 0, 2;

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

...

CROSSREFS

Cf. A051731, A133698, A001227, A133702, A023136.

Adjacent sequences: A133698 A133699 A133700 this_sequence A133702 A133703 A133704

Sequence in context: A108731 A060950 A039976 this_sequence A102442 A091182 A001822

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 21 2007

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.


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