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A009054
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Expansion of e.g.f. cos(sinh(sin(x))), even terms only.
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1
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1, -1, 1, 47, -895, 31, 1002497, -53580465, -8587007, 305732208959, -30437638147583, -144862063593105, 545283874522872193, -85823970766230251681, -801780964397998270975, 3637965188578615382687887
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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}, Take[CoefficientList[Series[Cos[Sinh[Sin[x]]], {x, 0, nn}], x]Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Jun 06 2012 *)
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PROG
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(PARI) x='x+O('x^60); v=Vec(serlaplace(cos(sinh(sin(x))))); vector(#v\2, n, v[2*n-1]) \\ G. C. Greubel, Jul 23 2018
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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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