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A324997
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Decimal expansion of zeta'(-1, 1/6).
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2
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0, 7, 0, 4, 5, 2, 5, 9, 2, 3, 6, 7, 2, 0, 4, 1, 4, 2, 4, 7, 5, 4, 6, 2, 1, 6, 6, 8, 0, 6, 0, 3, 5, 9, 2, 7, 7, 8, 5, 1, 5, 5, 0, 2, 7, 5, 4, 5, 8, 3, 0, 2, 0, 6, 4, 7, 7, 0, 1, 9, 3, 3, 2, 8, 6, 8, 3, 6, 2, 4, 5, 0, 0, 4, 3, 2, 0, 7, 3, 6, 5, 0, 4, 7, 7, 2, 9, 8, 1, 8, 9, 4, 4, 7, 4, 8, 1, 2, 1, 1, 4, 9, 9, 7, 5, 4
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OFFSET
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0,2
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LINKS
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FORMULA
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Equals -Pi/(12*sqrt(3)) + log(2)/72 + log(3)/144 + PolyGamma(1, 1/3)/(8*sqrt(3)*Pi) + Zeta'(-1)/6.
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EXAMPLE
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0.070452592367204142475462166806035927785155027545830206477019332868362...
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MAPLE
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evalf(Zeta(1, -1, 1/6), 120);
evalf(-Pi/(12*sqrt(3)) + log(2)/72 + log(3)/144 + Psi(1, 1/3)/(8*sqrt(3)*Pi) + Zeta(1, -1)/6, 120);
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MATHEMATICA
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RealDigits[Derivative[1, 0][Zeta][-1, 1/6], 10, 120][[1]]
N[With[{k=1}, -(9^k - 1) * (2^(2*k-1) + 1) * BernoulliB[2*k] * Pi/(8*Sqrt[3]*k*6^(2*k - 1)) + BernoulliB[2*k] * (3^(2*k-1) - 1)*Log[2]/(4*k*6^(2*k - 1)) + BernoulliB[2*k]*(2^(2*k-1) - 1) * Log[3]/(4*k*6^(2*k-1)) - (-1)^k*(2^(2*k-1) + 1) * PolyGamma[2*k-1, 1/3] / (2*Sqrt[3]*(12*Pi)^(2*k - 1))+(2^(2*k - 1) - 1)*(3^(2*k - 1) - 1)*Zeta'[1-2*k]/2/6^(2*k-1)], 120]
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PROG
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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