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A009603
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Expansion of sinh(tan(tan(x))) (odd powers only).
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1
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1, 5, 113, 5669, 494081, 65835109, 12394430129, 3124415825605, 1014225530028161, 411568350375102789, 203968457810172592497, 121149200509578256609253, 84912250115184457330480001
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OFFSET
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0,2
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LINKS
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MATHEMATICA
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With[{nn=30}, Take[CoefficientList[Series[Sinh[Tan[Tan[x]]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Sep 02 2015 *)
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PROG
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(PARI) x='x+O('x^30); Vec(serlaplace(sinh(tan(tan(x))))) \\ G. C. Greubel, Jan 30 2018
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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