OFFSET
0,4
MATHEMATICA
With[{nn=30}, CoefficientList[Series[Log[1+Tanh[x]]/Cosh[x], {x, 0, nn}], x] Range[ 0, nn]!] (* Harvey P. Dale, Oct 06 2014 *)
CROSSREFS
KEYWORD
sign,easy
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
Definition clarified and prior Mathematica program replaced by Harvey P. Dale, Oct 06 2014
STATUS
approved