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A009063
Expansion of e.g.f. cos(sinh(x)*sin(x)) in powers of x^4.
1
1, -12, 2128, -1586112, 3134810368, -13146370501632, 101503034352652288, -1310949029247657295872, 26429820982888342672703488, -788858770066309331711165202432, 33443475995623429145380539537031168
OFFSET
0,2
LINKS
MATHEMATICA
With[{nmax = 120}, CoefficientList[Series[Cos[Sinh[x]*Sin[x]], {x, 0, nmax}], x]*Range[0, nmax]!][[1 ;; ;; 4]] (* G. C. Greubel, Jul 24 2018 *)
PROG
(PARI) x='x+O('x^50); v=Vec(serlaplace(cos(sinh(x)*sin(x)))); vector(#v\4, n, v[4*n-3]) \\ G. C. Greubel, Jul 24 2018
CROSSREFS
Sequence in context: A369336 A004823 A342964 * A012675 A175014 A101812
KEYWORD
sign
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved