%I #6 May 13 2019 13:21:25
%S 1,2,16,440,27904,2850176,425017984,88153419008,24337836937216,
%T 8628418353065984,3819956976511713280,2065506026582536355840,
%U 1339535792840983753424896,1026285196477087825278599168
%N arcsin(tan(sin(x)))=x+2/3!*x^3+16/5!*x^5+440/7!*x^7+27904/9!*x^9...
%t With[{nn=30},Take[CoefficientList[Series[ArcSin[Tan[Sin[x]]],{x,0,nn}],x] Range[0,nn-1]!,{2,-1,2}]] (* _Harvey P. Dale_, May 13 2019 *)
%K nonn
%O 0,2
%A Patrick Demichel (patrick.demichel(AT)hp.com)
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