A009175 Expansion of cosh(x)*cos(sin(x)).

1, 0, 0, 24, -256, 5632, -156032, 4761600, -178225152, 8081772544, -422364381184, 25184814366720, -1713906141986816, 131755307615387648, -11304870125221445632, 1075236678976585072640, -112837158484808719925248

Offset

0,4

Links

Table of n, a(n) for n=0..16.

Mathematica

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

Crossrefs

Sequence in context: A051828 A076847 A296575 * A308054 A296916 A187380

Adjacent sequences: A009172 A009173 A009174 * A009176 A009177 A009178

Keyword

sign

Author

R. H. Hardin

Extensions

Extended with signs by Olivier Gérard, Mar 15 1997

Status

approved