OFFSET
1,2
COMMENTS
Sum_{k>=2} (-1)^k*Zeta(k)/k = A001620 (see MathWorld, formula 122).
LINKS
Eric Weisstein's MathWorld, Riemann Zeta Function
Wikipedia, Riemann Zeta Function
EXAMPLE
1.8369219085956637832656408801121703431625646624535449044570417275970793489...
MAPLE
evalf(Sum((-1)^j*Zeta(j)^3/j, j=2..infinity), 120);
MATHEMATICA
NSum[(-1)^k*Zeta[k]^3/k, {k, 2, Infinity}, WorkingPrecision -> 200, NSumTerms -> 100000]
PROG
(PARI) sumalt(k=2, (-1)^k*zeta(k)^3/k)
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Vaclav Kotesovec, Mar 25 2019
STATUS
approved