%I #4 Feb 24 2012 12:50:52
%S 1,1,-15,105,8897,-664815,-4523343,8138992953,-972054629887,
%T -115219461350367,72803853486273265,-6666182957939643127,
%U -7549270905441932464191,4123382958180269131627825
%N sec(cos(x)*arctan(x))=1+1/2!*x^2-15/4!*x^4+105/6!*x^6+8897/8!*x^8...
%K sign
%O 0,3
%A Patrick Demichel (patrick.demichel(AT)hp.com)
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