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A009536
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Expansion of sin(x)*cos(tanh(x)).
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0
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1, -4, 56, -1576, 70912, -4668544, 423673472, -50674728448, 7717401038848, -1456461190426624, 333308651379949568, -90869806167526899712, 29082416014569110142976, -10791837753739463345963008
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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[Sin[x]*Cos[Tanh[x]], {x, 0, nn}], x] Range[ 0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Feb 29 2020 *)
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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