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A012697
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Expansion of e.g.f.: exp(arctanh(x)*log(x+1))=1+2/2!*x^2-3/3!*x^3+28/4!*x^4-110/5!*x^5...
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1
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1, 0, 2, -3, 28, -110, 1058, -6804, 75024, -664488, 8456712, -94737720, 1378535112, -18587872368, 305610292752, -4802794952760, 88232994448128, -1580181612876864, 32119507894881216, -644756418530970624
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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}, CoefficientList[Series[Exp[ArcTanh[x]Log[x+1]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Dec 08 2019 *)
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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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