A009164 Expansion of cosh(tan(x)*sin(x)).

1, 0, 12, 120, 5712, 277440, 22051392, 2264545920, 305454289152, 51584380815360, 10690872186043392, 2662785210401986560, 784469273871443546112, 269661019173783209656320

Offset

0,3

Links

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

Mathematica

Cosh[ Tan[ x ]*Sin[ x ] ] (* Even Part *)

Crossrefs

Sequence in context: A012374 A012615 A012559 * A012436 A012619 A012563

Adjacent sequences: A009161 A009162 A009163 * A009165 A009166 A009167

Keyword

nonn

Author

R. H. Hardin

Extensions

Extended and signs tested Mar 15 1997 by Olivier Gérard.

Status

approved