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A013176 arcsin(arctanh(x)+arctan(x))=2*x+8/3!*x^3+336/5!*x^5+32832/7!*x^7... 0

%I

%S 2,8,336,32832,6596352,2172377088,1074790176768,742942875451392,

%T 684332863424888832,809904627202731540480,1197620189653593343131648,

%U 2163726873433446527375769600,4689766098958031240193965555712

%N arcsin(arctanh(x)+arctan(x))=2*x+8/3!*x^3+336/5!*x^5+32832/7!*x^7...

%t With[{nn=30},Take[CoefficientList[Series[ArcSin[ArcTanh[x]+ArcTan[x]],{x,0,nn}],x] Range[0,nn-1]!,{2,-1,2}]] (* _Harvey P. Dale_, Aug 22 2014 *)

%K nonn

%O 0,1

%A Patrick Demichel (patrick.demichel(AT)hp.com)

%E Definition clarified by _Harvey P. Dale_, Aug 22 2014

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Last modified May 24 05:29 EDT 2022. Contains 354005 sequences. (Running on oeis4.)