OFFSET
0,5
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
MATHEMATICA
With[{nn=30}, CoefficientList[Series[Log[1+Tanh[Sinh[x]]], {x, 0, nn}], x]Range[0, nn]!] (* Harvey P. Dale, Mar 01 2012 *)
CROSSREFS
KEYWORD
sign,easy
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved