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A013163
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Expansion of e.g.f.: arctanh(arctanh(x)+log(x+1))=2*x-1/2!*x^2+20/3!*x^3-54/4!*x^4...
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1
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0, 2, -1, 20, -54, 1196, -7590, 183424, -2024456, 53868512, -879522480, 25940060736, -567297596448, 18589297654560, -510176264397072, 18555679255219584, -611191404598032000, 24595483932280127232
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OFFSET
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0,2
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LINKS
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MATHEMATICA
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With[{nn=20}, CoefficientList[Series[ArcTanh[ArcTanh[x]+Log[x+1]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Apr 20 2016 *)
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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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Zero prepended and definition clarified by Harvey P. Dale, Apr 20 2016
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STATUS
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approved
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