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%I #6 Nov 29 2016 08:37:19
%S 0,2,-1,-12,42,436,-4170,-32704,751016,3283072,-209162880,86913024,
%T 81648502848,-575015877024,-41409311392176,689874309603456,
%U 25412078270229120,-812967446932685568,-17148064731893670528
%N arctan(arctanh(x)+log(x+1))=2*x-1/2!*x^2-12/3!*x^3+42/4!*x^4+436/5!*x^5...
%t With[{nn=30},CoefficientList[Series[ArcTan[ArcTanh[x]+Log[x+1]],{x,0,nn}],x] Range[0,nn]!] (* _Ray Chandler_, Nov 29 2016 *)
%K sign
%O 0,2
%A Patrick Demichel (patrick.demichel(AT)hp.com)
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