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A009053
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Expansion of e.g.f. cos(sinh(log(1+x))).
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1
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1, 0, -1, 3, -14, 80, -526, 3906, -32192, 290016, -2816056, 29050120, -313052024, 3442154352, -37060529416, 353733158520, -1866295941824, -42066299646976, 2247562825065152, -73960387213018176, 2159580310527713536
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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=20}, CoefficientList[Series[Cos[Sinh[Log[1+x]]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Oct 19 2013 *)
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PROG
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(PARI) x='x+O('x^30); Vec(serlaplace(cos(sinh(log(1+x))))) \\ G. C. Greubel, Jul 23 2018
(Magma) m:=30; R<x>:=PowerSeriesRing(Rationals(), m); b:=Coefficients(R!(Cos(Sinh(Log(1+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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