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%I #6 May 26 2015 10:14:54
%S 1,-1,-15,-345,-11263,-455025,-16466703,746021367,480286325633,
%T 150637957014303,46203820378253425,15313454320801213511,
%U 5643895146092962507905,2333857400234709586763695
%N cos(sec(x)*arcsin(x))=1-1/2!*x^2-15/4!*x^4-345/6!*x^6-11263/8!*x^8...
%t With[{nn=30},Take[CoefficientList[Series[Cos[Sec[x]ArcSin[x]],{x,0,nn}],x] Range[0,nn]!,{1,-1,2}]] (* _Harvey P. Dale_, May 26 2015 *)
%K sign
%O 0,3
%A Patrick Demichel (patrick.demichel(AT)hp.com)
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