%I #6 Jun 07 2013 16:49:16

%S 1,5,85,3201,204905,19581949,2608398013,463598293497,106484041306577,

%T 30821112722260469,11011429241275209765,4772177089034491961201,

%U 2471736193532210009786425,1510365281819897595496029677

%N sinh(sec(x)*arcsin(x))=x+5/3!*x^3+85/5!*x^5+3201/7!*x^7+204905/9!*x^9...

%t With[{nn=30},Take[CoefficientList[Series[Sinh[Sec[x]*ArcSin[x]],{x,0,nn}],x] Range[0,nn-1]!,{2,-1,2}]] (* _Harvey P. Dale_, Jun 07 2013 *)

%K nonn

%O 0,2

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