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A024258
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Expansion of sinh(sin(x)^2)/2.
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0
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0, 1, -4, 76, -3424, 156496, -8734144, 692856256, -71625432064, 8660992665856, -1209291525059584, 198287541178756096, -37919908685907042304, 8258774681248253464576, -2015504795625062206849024
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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=30}, Take[CoefficientList[Series[Sinh[Sin[x]^2]/2, {x, 0, nn}], x] Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Mar 06 2023 *)
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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EXTENSIONS
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Extended with signs Mar 1997
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STATUS
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approved
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