A133703 A054525 * A133701.

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

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:
  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 A347249

Adjacent sequences: A133700 A133701 A133702 * A133704 A133705 A133706

Keyword

nonn,tabl,more

Author

Gary W. Adamson, Sep 21 2007

Status

approved