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%I #6 Apr 22 2022 15:34:09
%S 1,0,-4,-136,272,-222016,21267520,-3836913536,874251520256,
%T -254117293340672,92635637659667456,-41075111126460016640,
%U 21845766688887149694976,-13711633858766326011314176
%N sin(tan(arcsinh(x)))=x-4/5!*x^5-136/7!*x^7+272/9!*x^9-222016/11!*x^11...
%t With[{nn=30},Take[CoefficientList[Series[Sin[Tan[ArcSinh[x]]],{x,0,nn}],x] Range[ 0,nn-1]!,{2,-1,2}]] (* _Harvey P. Dale_, Apr 22 2022 *)
%K sign
%O 0,3
%A Patrick Demichel (patrick.demichel(AT)hp.com)
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