OFFSET
0,4
MATHEMATICA
With[{nn=30}, CoefficientList[Series[Tan[Tanh[Log[1+x]]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Aug 30 2020 *)
CROSSREFS
KEYWORD
sign,easy
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
Definition clarified and previous Mathematica program replaced by Harvey P. Dale, Aug 30 2020
STATUS
approved