login
A009830
Expansion of tanh(x).exp(tan(x)).
0
0, 1, 2, 1, 4, 41, 198, 673, 4040, 41425, 316874, 2148961, 19176268, 225227705, 2374489614, 23880701185, 282825044624, 3905967813793, 52279148694674, 689701934465089, 10130169154611604, 163751563593866057
OFFSET
0,3
MATHEMATICA
Tanh[ x ]*Exp[ Tan[ x ] ]
CROSSREFS
Sequence in context: A174941 A267381 A061655 * A053374 A355517 A227050
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
Extended and signs tested Mar 15 1997 by Olivier Gérard.
STATUS
approved