OFFSET
0,3
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 0..480
MATHEMATICA
With[{nn=30}, CoefficientList[Series[Exp[Tanh[x]]/Cos[x], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Mar 14 2018 *)
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, Mar 14 2018
STATUS
approved