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A009712 Expansion of tan(tanh(sin(x))). 0

%I

%S 1,-1,-7,391,-17263,680239,1450569,-7957325193,2085950965153,

%T -451440698199841,87302333394141977,-12244874410272223257,

%U -1227047210877649641679,2438662572717698729224975

%N Expansion of tan(tanh(sin(x))).

%t With[{nn=30},Take[CoefficientList[Series[Tan[Tanh[Sin[x]]],{x,0,nn}],x] Range[0,nn-1]!,{2,-1,2}]] (* _Harvey P. Dale_, Jun 14 2016 *)

%K sign

%O 0,3

%A _R. H. Hardin_

%E Extended with signs by _Olivier GĂ©rard_, Mar 15 1997

%E Prior Mathematica program replaced by _Harvey P. Dale_, Jun 14 2016

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Last modified March 25 06:19 EDT 2023. Contains 361511 sequences. (Running on oeis4.)