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A003708
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Expansion of tan(log(1+x)).
(Formerly M3547)
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6
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0, 1, -1, 4, -18, 110, -810, 7040, -70280, 792200, -9945000, 137550400, -2077719600, 34026132400, -600433397200, 11356783360000, -229193571984000, 4915556301968000, -111644265232656000, 2676908220027392000
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OFFSET
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0,4
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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FORMULA
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MATHEMATICA
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With[{nn=20}, CoefficientList[Series[Tan[Log[1+x]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, May 28 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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STATUS
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approved
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