OFFSET
0,6
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..250
MATHEMATICA
With[{nmax = 30}, CoefficientList[Series[Cos[x]/Exp[Sinh[x]], {x, 0, nmax}], x]*Range[0, nmax]!] (* G. C. Greubel, Jul 26 2018 *)
PROG
(PARI) x='x+O('x^30); Vec(serlaplace(cos(x)/exp(sinh(x)))) \\ G. C. Greubel, Jul 26 2018
(Magma) m:=30; R<x>:=PowerSeriesRing(Rationals(), m); b:=Coefficients(R!(Cos(x)/Exp(Sinh(x)))); [Factorial(n-1)*b[n]: n in [1..m]]; // G. C. Greubel, Jul 26 2018
CROSSREFS
KEYWORD
sign,easy
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved