A133001 Denominators of Blandin-Diaz compositional Bernoulli numbers (B^Z^(3))_1,n.

1, 12, 56, 64, 31360, 50176, 33116160, 264929280

Offset

0,2

Links

Table of n, a(n) for n=0..7.

Hector Blandin and Rafael Diaz, Compositional Bernoulli numbers, arXiv:0708.0809 [math.CO], 2007-2008, p. 9, 3rd table.

Example

60, -15/12, 9/56, 3/64, 401/31360, 127/50176, -9089/33116160, -192233/264929280.

Crossrefs

Numerators are A133000.

Cf. A132092-A132099.

Sequence in context: A343539 A229424 A009653 * A340517 A104188 A069552

Adjacent sequences: A132998 A132999 A133000 * A133002 A133003 A133004

Keyword

frac,more,nonn

Author

Jonathan Vos Post, Aug 09 2007

Status

approved