A134761 A007318^(-2) * A134760.

1, 1, 3, 1, 11, 1, 39, 1, 139, 1, 503, 1, 1847, 1

Offset

0,3

Links

Table of n, a(n) for n=0..13.

Formula

Second inverse binomial transform of A134760. A134760 interpolated with 1's.

Example

The first few terms are (1, 1, 3, 1, 11, 1, 39, ...), since A134760 = (1, 3, 11, 39, 139, 503, ...).

Crossrefs

Cf. A134760, A000984.

Sequence in context: A277790 A360121 A339175 * A166752 A205483 A230262

Adjacent sequences: A134758 A134759 A134760 * A134762 A134763 A134764

Keyword

nonn

Author

Gary W. Adamson, Nov 09 2007

Status

approved