OFFSET
0,4
MATHEMATICA
With[{nn=30}, CoefficientList[Series[Tanh[Log[1+x]^2]/2, {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Jun 22 2019 *)
CROSSREFS
KEYWORD
sign
AUTHOR
EXTENSIONS
Extended with signs, Mar 1997
Definition clarified and prior Mathematica program replaced by ~~~
STATUS
approved