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A130558 Denominators of partial sums of a series for 6*(5-4*Zeta(3)). 1

%I #7 Nov 09 2019 15:34:52

%S 1,9,360,9000,7000,343000,8232000,666792000,7334712000,887500152000,

%T 11537501976000,1949837833944000,1949837833944000,1949837833944000,

%U 265177945416384000,76636426225334976000,161788010920151616000

%N Denominators of partial sums of a series for 6*(5-4*Zeta(3)).

%C Numerators are given in A130557.

%C For the rationals r(n) := 4!*Sum_{j=2..n} 1/((j^3)*(j^2-1)), n >= 2, the Z. A. Melzak reference and a W. Lang link see A130557.

%F a(n) = denominator(r(n)), n >= 2.

%K nonn,frac,easy

%O 2,2

%A _Wolfdieter Lang_, Jul 13 2007

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)