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A133703 A054525 * A133701. 1
1, 0, 1, 1, 0, 2, 0, 0, 0, 1, 1, 0, 0, 0, 2, 0, 1, 0, 0, 0, 2, 1, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,6

COMMENTS

Right border = A001227: (1, 1, 2, 1, 2, 2, 2, 1, 3,...), the number of odd divisors of n. Row sums = A023136: (1, 1, 3, 1, 3, 3, 3, 1, 5, 3,...).

LINKS

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

FORMULA

Mobius transform of triangle A133701.

EXAMPLE

First few rows of the triangle are:

1;

0, 1;

1, 0, 2;

0, 0, 0, 1;

1, 0, 0, 0, 2;

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

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

...

CROSSREFS

Cf. A054525, A133701, A001227, A023136.

Sequence in context: A306798 A086079 A296338 * A073265 A338326 A025438

Adjacent sequences:  A133700 A133701 A133702 * A133704 A133705 A133706

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Sep 21 2007

STATUS

approved

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Last modified May 9 10:39 EDT 2021. Contains 343732 sequences. (Running on oeis4.)