Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #7 Nov 21 2013 12:46:01
%S 2,12,262,13272,1199882,172207332,35836412302,10199550294192,
%T 3802117533461522,1797033345886449852,1049846428673838251542,
%U 742763896072793206770312,625784289590468519088366362
%N arcsin(sinh(x)*tan(x))=2/2!*x^2+12/4!*x^4+262/6!*x^6+13272/8!*x^8...
%t With[{nn=30},Take[CoefficientList[Series[ArcSin[Sinh[x]Tan[x]],{x,0,nn}], x]Range[0,nn]!,{3,-1,2}]] (* _Harvey P. Dale_, Jan 28 2012 *)
%K nonn
%O 0,1
%A Patrick Demichel (patrick.demichel(AT)hp.com)