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A009218 Expansion of exp(sinh(ln(1+x))). 0
1, 1, 0, 1, -2, 6, -14, -20, 876, -12572, 157816, -1953324, 24704560, -323390144, 4399642248, -62212681544, 912281561296, -13817130664560, 214872589110016, -3401627908578992, 54093656991247776, -844240783639323104 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Table of n, a(n) for n=0..21.

MATHEMATICA

Exp[ Sinh[ Log[ 1+x ] ] ]

CROSSREFS

Sequence in context: A086666 A032383 A014775 * A071122 A173724 A101572

Adjacent sequences:  A009215 A009216 A009217 * A009219 A009220 A009221

KEYWORD

sign,easy

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs Mar 15 1997 by Olivier Gerard.

STATUS

approved

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Last modified May 25 05:52 EDT 2013. Contains 225644 sequences.