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cosh(arctan(x)*sin(x))=1+12/4!*x^4-360/6!*x^6+17360/8!*x^8...
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%I #4 Feb 24 2012 12:50:49

%S 1,0,12,-360,17360,-1431360,176717376,-30259605376,6872523424000,

%T -2001253898164224,727157103049997312,-322526390192253356032,

%U 171508583202445765136384,-107708920891668309118730240

%N cosh(arctan(x)*sin(x))=1+12/4!*x^4-360/6!*x^6+17360/8!*x^8...

%K sign

%O 0,3

%A Patrick Demichel (patrick.demichel(AT)hp.com)