%I #14 Apr 02 2017 14:14:50
%S 1,-5,61,-1217,38137,-1753245,112141173,-9583252569,1057866255601,
%T -146689651631285,24972471277262509,-5121374164476105329,
%U 1245379275329762046441,-354323420531627060286029
%N Expansion of tanh(x)*cos(sin(x)).
%t With[{nn=30},Take[CoefficientList[Series[Tanh[x]*Cos[Sin[x]],{x,0,nn}], x] Range[0,nn-1]!,{2,-1,2}]] (* _Harvey P. Dale_, May 29 2013 *)
%K sign
%O 0,2
%A _R. H. Hardin_
%E Extended with signs by _Olivier GĂ©rard_, Mar 15 1997