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A012413
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sinh(arctan(x)*exp(x)) = x + 2/2!*x^2 + 2/3!*x^3 + 8/4!*x^4 + 80/5!*x^5 +...
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1
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0, 1, 2, 2, 8, 80, 320, 16, 1920, 99776, 416128, -5760896, -13486592, 1070744064, 3323114496, -195141029888, -464796680192, 51108813787136, 107290616242176, -16422323853352960, -25773434486882304
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OFFSET
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0,3
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LINKS
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MATHEMATICA
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With[{nn=20}, CoefficientList[Series[Sinh[ArcTan[x]Exp[x]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Nov 13 2011 *)
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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Patrick Demichel (patrick.demichel(AT)hp.com)
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STATUS
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approved
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