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A009826
Expansion of tanh(x)*cos(tan(x)).
0
1, -5, 1, -797, 1345, -785685, 33807489, -492925869, 846642059905, 79077949115227, 36210294463841281, 6194961651235041859, 2607668614681912579521, 628125063344376763784011, 293462485767782617143864449
OFFSET
0,2
MATHEMATICA
Tanh[ x ]*Cos[ Tan[ x ] ] (* Odd Part *)
CROSSREFS
Sequence in context: A162227 A075266 A094096 * A255855 A255858 A238798
KEYWORD
sign
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved