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A133698
Triangle, diagonal = A001227 with the rest zeros.
4
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
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
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Sep 21 2007
STATUS
approved