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A013439
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Expansion of e.g.f.: exp(tan(x)-log(x+1))=1+1/2!*x^2+9/4!*x^4-8/5!*x^5+225/6!*x^6...
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0
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1, 0, 1, 0, 9, -8, 225, -616, 11025, -57584, 901089, -7218288, 111426777, -1206961208, 19455493057, -263225301400, 4553837345057, -73099331076960, 1373357039852353, -25286525625615712, 517610171023053737
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OFFSET
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0,5
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LINKS
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MATHEMATICA
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With[{nn=20}, CoefficientList[Series[Exp[Tan[x]-Log[x+1]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Jun 01 2020 *)
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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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EXTENSIONS
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STATUS
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approved
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