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A012890
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Expansion of e.g.f. arctan(sin(x) + log(x+1)).
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0
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0, 2, -1, -15, 42, 653, -4890, -65051, 1029560, 10876589, -341906400, -2371373301, 162702562440, 368100726615, -103982400082288, 393050098566969, 84905400106831200, -995896955006440711
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OFFSET
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0,2
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LINKS
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MAPLE
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2*x - 1/2!*x^2 - 15/3!*x^3 + 42/4!*x^4 + 653/5!*x^5 ...
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MATHEMATICA
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With[{nn=20}, CoefficientList[Series[ArcTan[Sin[x]+Log[x+1]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Nov 19 2021 *)
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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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