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 A258991 Decimal expansion of the multiple zeta value (Euler sum) zetamult(4,4). 8
 0, 8, 3, 6, 7, 3, 1, 1, 3, 0, 1, 6, 4, 9, 5, 3, 6, 1, 6, 1, 4, 8, 9, 0, 4, 3, 6, 5, 4, 2, 3, 8, 7, 7, 0, 5, 4, 3, 8, 2, 4, 6, 7, 3, 2, 5, 5, 4, 1, 5, 4, 1, 6, 8, 3, 6, 0, 7, 5, 9, 1, 8, 3, 5, 5, 4, 3, 8, 1, 9, 1, 2, 7, 1, 4, 5, 6, 2, 4, 0, 1, 1, 9, 9, 6, 0, 7, 2, 6, 9, 1, 9, 7, 6, 9, 7, 6, 6, 4, 2, 6, 0, 3, 7, 6, 9, 7 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Eric Weisstein's MathWorld, Multivariate Zeta Function Wikipedia, Multiple zeta function FORMULA zetamult(4,4) = Sum_{m>=2} (Sum_{n=1..m-1} 1/(m^4*n^4)) = (1/2)*(zeta(4)^2 - zeta(8)). EXAMPLE 0.08367311301649536161489043654238770543824673255415416836075918355438... MATHEMATICA Join[{0}, RealDigits[(1/2)*(Zeta[4]^2 - Zeta[8]), 10, 106] // First] PROG (PARI) zetamult([4, 4]) \\ Charles R Greathouse IV, Jan 21 2016 CROSSREFS Cf. A072691 (zetamult(1,1)), A197110 (zetamult(2,2)), A258983 (zetamult(3,2)), A258984 (4,2), A258985 (5,2), A258947 (6,2), A258986 (2,3), A258987 (3,3), A258988 (4,3), A258982 (5,3), A258989 (2,4), A258990 (3,4). Sequence in context: A228211 A010522 A197332 * A132035 A153813 A277775 Adjacent sequences:  A258988 A258989 A258990 * A258992 A258993 A258994 KEYWORD nonn,cons,easy AUTHOR Jean-François Alcover, Jun 16 2015 STATUS approved

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Last modified March 20 11:22 EDT 2018. Contains 300982 sequences. (Running on oeis4.)