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A013572 exp(arcsinh(x)/exp(x))=1+x-1/2!*x^2-3/3!*x^3+9/4!*x^4+25/5!*x^5... 0
1, 1, -1, -3, 9, 25, -145, -539, 3857, 30129, -192673, -2816979, 17218201, 364417417, -2297788337, -63429766763, 417350455329, 14529736975457, -99514205291841, -4252720982041379, 30285000226110761 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

MATHEMATICA

With[{nn=30}, CoefficientList[Series[Exp[ArcSinh[x]/Exp[x]], {x, 0, nn}], x] Range[0, nn]!] (* From Harvey P. Dale, Dec 19 2011 *)

CROSSREFS

Sequence in context: A120284 A074440 A006204 * A119851 A119825 A037260

Adjacent sequences:  A013569 A013570 A013571 * A013573 A013574 A013575

KEYWORD

sign

AUTHOR

Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.