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A009582
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Expansion of e.g.f.: sinh(log(1+x)/cos(x)).
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1
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0, 1, -1, 6, -18, 135, -795, 7266, -62188, 669309, -7267005, 90797894, -1179693966, 16915574299, -254880171455, 4143992814482, -70922672184120, 1292106133397017, -24733436584847481, 499532815860896038
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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[Sinh[Log[1+x]/Cos[x]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Oct 22 2013 *)
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PROG
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(PARI) x='x+O('x^30); concat([0], Vec(serlaplace(sinh(log(1+x)/cos(x))))) \\ G. C. Greubel, Jan 22 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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Definition clarified and Mathematica program replaced by Harvey P. Dale, Oct 22 2013
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STATUS
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approved
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