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2Â¥: Originally posted by chbhx at 2012-06-04 19:12:32
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СÓêÃÈÃÈ: ½ð±Ò+2, 3Q~ 2012-06-05 20:48:32
=2^(1 - a) (-2 HurwitzZeta[-2 + a, 0] - 6 Zeta[-2 + a] +
   2^a Zeta[-2 + a])
HurwitzZeta gives the Hurwitz zeta function \[Zeta](s,a).
Zeta[s] gives the Riemann zeta function \[Zeta](s)
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