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A012591
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tanh(arcsinh(x)*exp(x)) = x+2/2!*x^2-24/4!*x^4-140/5!*x^5-200/6!*x^6...
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0
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0, 1, 2, 0, -24, -140, -200, 5096, 63616, 282192, -3220832, -80931136, -710613376, 3394272960, 211897855104, 3116854010752, 2173449924608, -951933369204480, -22125765748465152, -140624117764880384
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OFFSET
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0,3
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LINKS
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MATHEMATICA
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With[{nn=20}, Rest[CoefficientList[Series[Tanh[ArcSinh[x]Exp[x]], {x, 0, nn}], x]Range[0, nn]!]] (* Harvey P. Dale, Mar 28 2012 *)
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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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