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%I #4 Feb 24 2012 12:51:15
%S 1,-4,88,-5110,553160,-96580250,24721393700,-8728515353350,
%T 4063560953062000,-2412185091080859250,1778146182982493577500,
%U -1593628484999043797378750,1706481881516410825432385000
%N sech(arctan(x)+arcsin(x))=1-4/2!*x^2+88/4!*x^4-5110/6!*x^6...
%K sign
%O 0,2
%A Patrick Demichel (patrick.demichel(AT)hp.com)
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