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A009626 Expansion of sinh(x)*sin(sin(x)). 1
0, 2, -4, 38, -456, 6154, -131660, 3516334, -106736272, 3902982930, -170222268308, 8352824699446, -450765801976408, 26680683413522714, -1687649113840410588, 107139301840519550910, -5929940305488915501344 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

MATHEMATICA

With[{nn=40}, Take[CoefficientList[Series[Sinh[x]Sin[Sin[x]], {x, 0, nn}], x]Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Jan 04 2012 *)

CROSSREFS

Sequence in context: A019275 A012433 A012438 * A009835 A009834 A106127

Adjacent sequences:  A009623 A009624 A009625 * A009627 A009628 A009629

KEYWORD

sign

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs by Olivier Gérard, Mar 15 1997

STATUS

approved

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Last modified October 28 19:21 EDT 2020. Contains 338064 sequences. (Running on oeis4.)