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%I #6 Sep 30 2019 14:37:10
%S 1,1,1,0,-3,-4,21,136,185,272,9641,222016,1668021,21267520,192801597,
%T 3836913536,42064398961,874251520256,10576096455505,254117293340672,
%U 3476312353756781,92635637659667456
%N Expansion of e.g.f.: exp(tanh(arcsin(x)))=1+x+1/2!*x^2-3/4!*x^4-4/5!*x^5+21/6!*x^6...
%t With[{nn=30},CoefficientList[Series[Exp[Tanh[ArcSin[x]]],{x,0,nn}],x] Range[0,nn]!] (* _Harvey P. Dale_, Sep 30 2019 *)
%K sign
%O 0,5
%A Patrick Demichel (patrick.demichel(AT)hp.com)
%E Definition clarified by _Harvey P. Dale_, Sep 30 2019
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