%I #4 Feb 24 2012 12:50:37
%S 1,-4,84,-4320,410640,-62424000,13882209600,-4250758886400,
%T 1715097849504000,-881945575315584000,563062441711086720000,
%U -436991853893041873920000,405186856780938968885760000
%N arctan(sin(arcsinh(x)))=x-4/3!*x^3+84/5!*x^5-4320/7!*x^7+410640/9!*x^9...
%K sign
%O 0,2
%A Patrick Demichel (patrick.demichel(AT)hp.com)
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