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A012714
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E.g.f.: cos(arctanh(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-31/4!*x^4-140/5!*x^5...
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0
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1, 0, -1, -6, -31, -140, -625, -2170, -2623, 96072, 1642975, 23520882, 295668001, 3935469564, 50912723823, 723034935870, 10169862858113, 159490471907856, 2472265829827775, 43176564012771434
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OFFSET
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0,4
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LINKS
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MATHEMATICA
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With[{nn=30}, CoefficientList[Series[Cos[ArcTanh[x]Exp[x]], {x, 0, nn}], x]Range[0, nn]!] (* Harvey P. Dale, Jan 15 2013 *)
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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Patrick Demichel (patrick.demichel(AT)hp.com)
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EXTENSIONS
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STATUS
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approved
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