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%I #21 Apr 01 2017 14:12:22
%S 0,1,-1,1,-2,1,8,1,-16,1,-2304,1,68352,1,843776,1,-221382656,1,
%T 9865887744,1,888186732544,1,-200433787207680,1,8060855544971264,1,
%U 3814697273321848832,1,-890946236332166348800,1,-9668703713250158575616
%N E.g.f. log(1 + tanh(sinh(x))).
%H Vincenzo Librandi, <a href="/A009385/b009385.txt">Table of n, a(n) for n = 0..200</a>
%t With[{nn=30},CoefficientList[Series[Log[1+Tanh[Sinh[x]]],{x,0,nn}], x]Range[0,nn]!] (* _Harvey P. Dale_, Mar 01 2012 *)
%K sign,easy
%O 0,5
%A _R. H. Hardin_
%E Extended with signs by _Olivier Gérard_, Mar 15 1997
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