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A009452
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Expansion of e.g.f.: sin(log(1+tan(x))).
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0
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0, 1, -1, 3, -8, 26, -46, -542, 12272, -196204, 2970284, -46125412, 747689152, -12796612984, 231568711464, -4435090726232, 89781803413632, -1918433012222064, 43187041330469744, -1022364892192828752
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OFFSET
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0,4
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LINKS
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MATHEMATICA
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With[{nn=20}, CoefficientList[Series[Sin[Log[1+Tan[x]]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Jul 18 2022 *)
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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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Previous Mathematica program replaced and definition clarified by Harvey P. Dale, Jul 18 2022
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STATUS
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approved
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