A133698 Triangle, diagonal = A001227 with the rest zeros.

1, 0, 1, 0, 0, 2, 0, 0, 0, 1, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2

Offset

0,6

Links

Table of n, a(n) for n=0..54.

Formula

Infinite lower triangular matrix with A001227 (number of odd divisors of n) as the main diagonal the rest zeros.

Example

First few rows of the triangle are:
1;
0, 1;
0, 0, 2
0, 0, 0, 1;
0, 0, 0, 0, 2;
...

Crossrefs

Cf. A133698.

Sequence in context: A037881 A024326 A287619 * A219488 A370813 A129251

Adjacent sequences: A133695 A133696 A133697 * A133699 A133700 A133701

Keyword

nonn,tabl

Author

Gary W. Adamson, Sep 21 2007

Status

approved