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%I #4 Feb 24 2012 12:50:39
%S 1,1,9,249,14129,1362961,200409465,41812246345,11765081428705,
%T 4298599985014945,1980239469431883625,1123437678322006300185,
%U 769950079011855688807185,627326819278687159338591665
%N cosh(arcsin(arcsin(x)))=1+1/2!*x^2+9/4!*x^4+249/6!*x^6+14129/8!*x^8...
%K nonn
%O 0,3
%A Patrick Demichel (patrick.demichel(AT)hp.com)
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