|
%I #6 Nov 28 2016 17:45:48
%S 1,-6,192,-14704,2058624,-457982720,148443124736,-66066559066112,
%T 38672430452342784,-28812765976119148544,26627757204719641296896,
%U -29895731887419723149213696,40082507396600200285753704448
%N arctan(arctan(arctan(x)))=x-6/3!*x^3+192/5!*x^5-14704/7!*x^7...
%t With[{nn=30},Take[CoefficientList[Series[ArcTan[ArcTan[ArcTan[x]]],{x,0,nn}],x] Range[0,nn-1]!,{2,-1,2}]] (* _Ray Chandler_, Nov 28 2016 *)
%K sign
%O 0,2
%A Patrick Demichel (patrick.demichel(AT)hp.com)
|
