%I
%S 1,4,76,3424,285136,38302144,7603381696,2097552753664,768471264000256,
%T 361133162545705984,211820037816772258816,151696192774576615727104,
%U 130270853179191716758245376
%N E.g.f.: sinh(arcsin(tan(x)))=x+4/3!*x^3+76/5!*x^5+3424/7!*x^7+285136/9!*x^9...
%t With[{nn=30},Take[CoefficientList[Series[Sinh[ArcSin[Tan[x]]],{x,0,nn}], x]Range[0,nn-1]!,{2,-1,2}]] (* _Harvey P. Dale_, May 24 2012 *)
%K nonn
%O 0,2
%A Patrick Demichel (patrick.demichel(AT)hp.com)
%E Definition clarified by _Harvey P. Dale_, May 24 2012
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