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A008961
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Numerators of Taylor series for 1/(sin x + tan x).
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2
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1, -1, -23, -947, -1733, -21781, -43311113, -2723179, -6414155401, -785453333257, -7699945982293, -66166822052531, -239092621861482143, -271166505959717, -74473963890443961601, -163219188105035970948619, -153312677184465775645847, -625566886054776334597601
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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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Take[Numerator[CoefficientList[2x #&/@Normal[Series[1/(Sin[x]+Tan[x]), {x, 0, 40}]], x]], {1, -1, 2}] (* Harvey P. Dale, Feb 11 2015 *)
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CROSSREFS
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KEYWORD
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sign,frac
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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