|
%I #7 Nov 21 2013 12:46:01
%S 1,1,9,281,20913,2869329,613734393,185272366761,74333015297505,
%T 38107181118565665,24270343990842570345,18795056467624757017785,
%U 17394205995630055629900945,18964089582659357000823035505
%N tanh(arcsin(arctanh(x)))=x+1/3!*x^3+9/5!*x^5+281/7!*x^7+20913/9!*x^9...
%t With[{nn=30},Take[CoefficientList[Series[Tanh[ArcSin[ArcTanh[x]]],{x,0,nn}], x]Range[0,nn-1]!,{2,-1,2}]] (* _Harvey P. Dale_, Feb 02 2012 *)
%K nonn
%O 0,3
%A Patrick Demichel (patrick.demichel(AT)hp.com)
|
