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A013048
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arctan(sinh(x)+tan(x))=2*x-13/3!*x^3+545/5!*x^5-56943/7!*x^7...
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0
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2, -13, 545, -56943, 11117105, -3487836823, 1604931814265, -1018249076690703, 851905379176813025, -908738393030606172583, 1203783991693440890209385, -1938726869386079701650506463
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OFFSET
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0,1
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LINKS
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MATHEMATICA
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With[{nn=30}, Take[CoefficientList[Series[ArcTan[Sinh[x]+Tan[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Aug 02 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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Patrick Demichel (patrick.demichel(AT)hp.com)
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STATUS
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approved
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