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%I A012385 #6 Apr 21 2024 17:27:52
%S A012385 1,0,12,360,24080,2520000,388466496,82494828416,23101056559360,
%T A012385 8247662229497856,3656849221865495552,1971359917831265798144,
%U A012385 1269841106398055675924480,963238435991748310206791680
%N A012385 sec(tan(x)*arcsin(x))=1+12/4!*x^4+360/6!*x^6+24080/8!*x^8...
%t A012385 With[{nn=30},Take[CoefficientList[Series[Sec[Tan[x]ArcSin[x]],{x,0,nn}],x] Range[0,nn]!,{1,-1,2}]] (* _Harvey P. Dale_, Apr 21 2024 *)
%K A012385 nonn
%O A012385 0,3
%A A012385 Patrick Demichel (patrick.demichel(AT)hp.com)

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