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A087499
Decimal expansion of Khinchin mean K_{-9}.
10
1, 1, 0, 2, 5, 4, 3, 1, 3, 6, 6, 7, 0, 7, 2, 8, 0, 1, 3, 8, 3, 6, 0, 9, 3, 4, 0, 2, 5, 2, 2, 5, 6, 8, 3, 5, 1, 0, 2, 2, 2, 2, 1, 2, 8, 4, 1, 4, 9, 3, 1, 8, 4, 0, 2, 3, 3, 1, 3, 1, 9, 8, 4, 7, 6, 8, 6, 3, 2, 5, 6, 2, 6, 9, 4, 7, 4, 4, 6, 0, 3, 3, 3, 6, 4, 1, 3, 9, 2, 0, 7, 8, 7, 2, 3, 7, 1, 7, 8, 4
OFFSET
1,4
COMMENTS
Khinchin's constant is K_0.
LINKS
Eric Weisstein's World of Mathematics, Khinchin's Constant
EXAMPLE
1.10254313...
MATHEMATICA
m = 9; digits = 100; exactEnd = 1000; f[n_] = -(Log[1 - (1 + n)^(-2)]/(n^m*Log[2])); s[n_] = Series[f[n], {n, Infinity, digits}] // Normal // N[#, digits]&; exactSum = Sum[f[n], {n, 1, exactEnd}] // N[#, digits]&; extraSum = Sum[s[n], {n, exactEnd + 1, Infinity}] // N[#, digits]&; (exactSum + extraSum)^(-1/m) // RealDigits[#, 10, digits]& // First (* Jean-François Alcover, Feb 14 2013 *)
KEYWORD
nonn,cons
AUTHOR
Eric W. Weisstein, Sep 09 2003
EXTENSIONS
More terms from Jean-François Alcover, Feb 14 2013
STATUS
approved