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A012927
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Expansion of e.g.f. tan(tan(x) + log(x+1)).
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0
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0, 2, -1, 20, -54, 932, -5670, 99648, -1005704, 19127984, -273119400, 5764554528, -106046677968, 2504052726944, -55986392252336, 1478337150849408, -38674242587249280, 1136792156499528448
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OFFSET
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0,2
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LINKS
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EXAMPLE
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2*x - 1/2!*x^2 + 20/3!*x^3 - 54/4!*x^4 + 932/5!*x^5 ...
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MATHEMATICA
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With[{nn=20}, Rest[CoefficientList[Series[Tan[Tan[x]+Log[x+1]], {x, 0, nn}], x]Range[0, nn]!]] (* Harvey P. Dale, Oct 06 2011 *)
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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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