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A012034 exp(sin(arcsinh(x))) = 1+x+1/2!*x^2-1/3!*x^3-7/4!*x^4+1/5!*x^5... 0

%I

%S 1,1,1,-1,-7,1,121,111,-4271,-9407,262801,957791,-25257079,-131065791,

%T 3510517193,23876150351,-667413187039,-5645293077119,166471455235489,

%U 1689130316350143,-52750545434135399

%N exp(sin(arcsinh(x))) = 1+x+1/2!*x^2-1/3!*x^3-7/4!*x^4+1/5!*x^5...

%F a(n) ~ 2 * n^(n-1) * cosh(Pi/2) * sin(Pi*n/2-sinh(Pi/2)) / exp(n). - _Vaclav Kotesovec_, Oct 30 2013

%t CoefficientList[Series[Exp[Sin[ArcSinh[x]]], {x, 0, 20}], x]* Range[0, 20]! (* _Vaclav Kotesovec_, Oct 30 2013 *)

%K sign

%O 0,5

%A Patrick Demichel (patrick.demichel(AT)hp.com)

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Last modified July 2 21:48 EDT 2022. Contains 355029 sequences. (Running on oeis4.)