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A009045
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Expansion of cos(sin(x))/exp(x).
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2
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1, -1, 0, 2, 0, -16, 24, 104, -256, -1600, 5632, 29952, -156032, -644736, 4761600, 18383616, -178225152, -645554176, 8081772544, 25645936640, -422364381184, -1160636121088, 25184814366720, 60217271582720, -1713906141986816
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OFFSET
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0,4
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LINKS
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MATHEMATICA
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With[{nn=30}, CoefficientList[Series[Cos[Sin[x]]/Exp[x], {x, 0, nn}], x]Range[0, nn]!] (* Harvey P. Dale, Dec 31 2012 *)
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PROG
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(PARI) x='x+O('x^30); Vec(serlaplace(cos(sin(x))/exp(x))) \\ G. C. Greubel, Jul 23 2018
(Magma) m:=30; R<x>:=PowerSeriesRing(Rationals(), m); b:=Coefficients(R!(Cos(Sin(x))/Exp(x))); [Factorial(n-1)*b[n]: n in [1..m]]; // G. C. Greubel, Jul 23 2018
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CROSSREFS
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KEYWORD
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sign,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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