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%I #13 Jan 13 2024 17:32:03
%S 1,1,1,-167,289,-30799,7624865,-327166135,29995758529,-7060555404191,
%T 991934013190081,-177889548504511175,51940497621294961121,
%U -14246314907147632709615,4386830634217402797858657
%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_, Jan 13 2024 *)
%K sign
%O 0,4
%A _R. H. Hardin_
%E Extended with signs by _Olivier Gérard_, Mar 15 1997
%E Previous Mathematica program replaced by _Harvey P. Dale_, Jan 13 2024