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%I #16 Jun 22 2015 22:18:58
%S 0,1,-1,1,-2,1,8,169,-1360,-1823,36096,365905,-4324608,-17126303,
%T 252720128,3688466617,-44566194176,-393996411839,4256810139648,
%U 109259290725793,-1089707691474944,-20477152840654271,132632440281759744
%N Expansion of log(1+sinh(tanh(x))).
%t With[{nn=30}, CoefficientList[Series[Log[1+Sinh[Tanh[x]]], {x, 0, nn}], x] Range[0,nn]!] (* _Harvey P. Dale_, Oct 24 2011 *)
%K sign,easy
%O 0,5
%A _R. H. Hardin_
%E Extended with signs by _Olivier Gérard_, Mar 15 1997
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