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A009413 Expansion of ln(1+x)*cosh(sinh(x)). 0
0, 1, -1, 5, -12, 69, -285, 1833, -11536, 91689, -782865, 7685325, -82339884, 973147629, -12466581309, 172666976433, -2565893101440, 40742019960785, -688062399893505, 12315242802523797, -232832786354392620 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

MATHEMATICA

Log[ 1+x ]*Cosh[ Sinh[ x ] ]

CROSSREFS

Sequence in context: A111904 A015784 A129723 * A009429 A156236 A128323

Adjacent sequences:  A009410 A009411 A009412 * A009414 A009415 A009416

KEYWORD

sign,easy

AUTHOR

R. H. Hardin (rhhardin(AT)att.net)

EXTENSIONS

Extended with signs Mar 15 1997 by Olivier Gerard.

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Last modified February 15 17:13 EST 2012. Contains 205828 sequences.