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A013529
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Numerator of [x^n] in the Taylor expansion exp(cosec(x) - cosech(x)) = 1 + x/3 + x^2/18 + x^3/162 + x^4/1944 + 211*x^5/51030 + ...
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3
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1, 1, 1, 1, 1, 211, 5029, 157, 6697, 439801, 375719873, 8013839, 186044689, 890107609, 1770350411, 1552280998637, 102625697881591, 76919615326361, 15912188224095499151, 25930051873454543, 1419184560088744177499, 659157886816533334709, 323645955378411578735051, 1513017447627551117359, 935339682040604214800761, 6612344442139455641066609, 36813244507954712597112169117, 112537977176478238359834596179, 45816041290074218754101655557981
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OFFSET
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0,6
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LINKS
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MATHEMATICA
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Numerator[CoefficientList[Series[Exp[1/Sin[x] - 1/Sinh[x]], {x, 0, 25}], x]] (* G. C. Greubel, Nov 11 2016 *)
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CROSSREFS
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KEYWORD
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nonn,frac
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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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