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 A255987 Decimal expansion of sum_{m,n >= 1} (-1)^(m + n)*log(m)*log(n)/(m*n*(m + n)). 0
 0, 0, 8, 4, 6, 5, 4, 5, 9, 1, 8, 3, 2, 4, 3, 5, 6, 6, 0, 0, 0, 2, 2, 0, 4, 6, 5, 4, 8, 3, 6, 2, 2, 8, 8, 0, 7, 0, 9, 8, 2, 5, 8, 8, 3, 4, 8, 7, 6, 9, 5, 0, 5, 1, 0, 2, 9, 5, 4, 2, 7, 3, 3, 3, 1, 8, 8, 2, 5, 6, 5, 3, 1, 9, 8, 6, 3, 1, 3, 2, 9, 1, 5, 3, 2, 4, 3, 7, 2, 9, 4, 9, 3, 0, 0, 0, 2, 0, 2, 1, 2, 9, 5, 4, 4, 9 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Table of n, a(n) for n=0..105. David H. Bailey and Jonathan M. Borwein, Computation and structure of character polylogarithms. EXAMPLE 0.008465459183243566000220465483622880709825883487695051... MATHEMATICA digits = 104; s = NSum[(-1)^(m + n)*Log[m]*Log[n]/(m*n*(m + n)), {m, 1, Infinity}, {n, 1, Infinity}, WorkingPrecision -> digits + 10, Method -> "AlternatingSigns"]; Join[{0, 0}, RealDigits[s, 10, digits] // First] CROSSREFS Sequence in context: A198500 A092727 A020842 * A266556 A199434 A253073 Adjacent sequences: A255984 A255985 A255986 * A255988 A255989 A255990 KEYWORD nonn,cons AUTHOR Jean-François Alcover, Mar 13 2015 STATUS approved

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Last modified May 30 03:21 EDT 2024. Contains 372957 sequences. (Running on oeis4.)