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A013368
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sech(sin(x)-arctan(x))=1-10/6!*x^6+1288/8!*x^8-152934/10!*x^10...
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0
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1, 0, 0, -10, 1288, -152934, 22044484, -4128980986, 1002646613616, -309256569835534, 118408798212804028, -55134457643443006338, 30684616930799120314216, -20117431906536006109520470
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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[Sech[Sin[x]-ArcTan[x]], {x, 0, nn}], x]Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Jan 31 2013 *)
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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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