A009222 Expansion of exp(sinh(tanh(x))).

1, 1, 1, 0, -3, -12, -27, 248, 2425, -3504, -143031, -115904, 8956533, 17130688, -618394579, -265254272, 46232494321, -452604387072, -3608163168111, 186145181366272, 254307747662573, -61549828575435776, 15725973912655477

Offset

0,5

Links

Table of n, a(n) for n=0..22.

Mathematica

Exp[ Sinh[ Tanh[ x ] ] ]

Crossrefs

Sequence in context: A183503 A216713 A133647 * A260815 A083543 A083538

Adjacent sequences: A009219 A009220 A009221 * A009223 A009224 A009225

Keyword

sign,easy

Author

R. H. Hardin

Extensions

Extended with signs by Olivier Gérard, Mar 15 1997

Status

approved