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%I #6 Aug 26 2013 17:27:59
%S 1,4,80,3928,359040,52717856,11352019840,3370401007488,
%T 1319560185804800,658698869874201088,408325769541831280640,
%U 307740770628961995577344,277115224743231975378370560
%N sec(sinh(x)+sin(x))=1+4/2!*x^2+80/4!*x^4+3928/6!*x^6+359040/8!*x^8...
%t With[{nn=30},Take[CoefficientList[Series[Sec[Sinh[x]+Sin[x]],{x,0,nn}],x] Range[0,nn]!,{1,-1,2}]] (* _Harvey P. Dale_, Aug 26 2013 *)
%K nonn
%O 0,2
%A Patrick Demichel (patrick.demichel(AT)hp.com)