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A009730
Expansion of tan(x)*cos(tanh(x)).
0
1, -1, 41, -673, 41425, -2148961, 225227705, -23880701185, 3905967813793, -689701934465089, 163751563593866057, -42927084558629732833, 14006383316589639761521, -5072190213708628462141345
OFFSET
0,3
MATHEMATICA
Tan[ x ]*Cos[ Tanh[ x ] ] (* Odd Part *)
CROSSREFS
Sequence in context: A197371 A268748 A143010 * A009761 A118448 A298459
KEYWORD
sign
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved