A009456 - OEIS

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A009456

Expansion of sin(log(1+x))*cosh(x).

0, 1, -1, 4, -6, 5, 75, -898, 8652, -83347, 845955, -9184144, 107036094, -1338243751, 17908121959, -255747266110, 3885901191000, -62631253326023, 1067753665779687, -19203106476922532, 363423688810695810

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,4

LINKS

Table of n, a(n) for n=0..20.

MATHEMATICA

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

CROSSREFS

Sequence in context: A140384 A274929 A301915 * A009465 A324942 A199161

Adjacent sequences: A009453 A009454 A009455 * A009457 A009458 A009459

KEYWORD

sign,easy

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs by Olivier Gérard, Mar 15 1997

STATUS

approved