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A097234
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Numerators of coefficients in cosh(x) / sin(x) power series.
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1
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-1, 2, 13, 19, 29, 13, 254983, 2593, 137561, 65082637, 7254146201, 390121079, 1870450393439, 109336409527, 10204882558837, 163634261622076159, 75160931938786203761, 31012919260504739, 1378721049267804056272181
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OFFSET
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-1,2
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LINKS
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EXAMPLE
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cosh(x)/sin(x) = -1/x + 2/3*x + 13/90*x^3 + 19/945*x^5 +...
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CROSSREFS
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KEYWORD
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sign,frac
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AUTHOR
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STATUS
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approved
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