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A009363
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Expansion of log(1+tan(log(1+x))).
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0
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0, 1, -2, 9, -55, 434, -4180, 47590, -625770, 9339880, -156097760, 2889491800, -58706203400, 1299203207600, -31115627649600, 801958361812400, -22134642846706000, 651438145653776000, -20365743882600064000
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OFFSET
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0,3
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LINKS
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FORMULA
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MATHEMATICA
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With[{nn=20}, CoefficientList[Series[Log[1+Tan[Log[1+x]]], {x, 0, nn}], x]Range[0, nn]!] (* Harvey P. Dale, Sep 28 2011 *)
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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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STATUS
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approved
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