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A012327
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sech(arcsin(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-23/4!*x^4-20/5!*x^5...
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0
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1, 0, -1, -6, -23, -20, 695, 8750, 59057, 27096, -6378545, -112547358, -1027909159, 1643389124, 273544780743, 5934532973590, 63673713397473, -375014334859344, -35324004296221921, -878127940239307318
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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[Sech[ArcSin[x]Exp[x]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Oct 25 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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