OFFSET
0,3
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..100
FORMULA
a(n) = n * A003723(n-1). - Ralf Stephan, Sep 01 2003
MATHEMATICA
With[{nn=30}, CoefficientList[Series[Exp[Tanh[x]]*x, {x, 0, nn}], x] Range[ 0, nn]!] (* Harvey P. Dale, Jun 24 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, Jun 24 2014
STATUS
approved