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A009449
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Expansion of e.g.f.: sin(log(1+log(1+x))).
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0
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0, 1, -2, 6, -23, 99, -379, -262, 43940, -1040942, 21148764, -425218324, 8815744554, -191341725498, 4373089531474, -105434549548356, 2681427980474560, -71863978166452700, 2026733667001278600, -60049911134969228680
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OFFSET
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0,3
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LINKS
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MATHEMATICA
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With[{nn=20}, CoefficientList[Series[Sin[Log[1+Log[1+x]]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, May 19 2018 *)
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CROSSREFS
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KEYWORD
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sign,easy
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AUTHOR
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EXTENSIONS
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Definition clarified and prior Mathematica program replaced by Harvey P. Dale, May 19 2018
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STATUS
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approved
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