A087495 Decimal expansion of Khinchin mean K_{-5}.

1, 1, 8, 9, 0, 0, 3, 9, 2, 6, 4, 6, 5, 5, 1, 3, 1, 5, 4, 0, 6, 2, 3, 6, 3, 7, 3, 2, 7, 7, 1, 4, 0, 3, 3, 9, 7, 3, 8, 6, 0, 9, 2, 5, 1, 2, 6, 3, 9, 6, 7, 1, 6, 2, 6, 4, 0, 9, 8, 4, 3, 6, 9, 3, 5, 6, 4, 6, 6, 5, 0, 0, 7, 9, 6, 8, 4, 2, 3, 0, 6, 1, 7, 7, 4, 2, 4, 6, 8, 9, 3, 3, 3, 3, 9, 7, 6, 3, 1, 1

Offset

1,3

Comments

Khinchin's constant is K_0.

Links

Table of n, a(n) for n=1..100.

Eric Weisstein's World of Mathematics, Khinchin's Constant

Example

1.18900392...

Mathematica

m = 5; 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 *)

Crossrefs

Cf. A002210, A087491, A087492, A087493, A087494, A087495, A087496, A087497, A087498, A087499, A087500.

Sequence in context: A273555 A213153 A132038 * A111253 A021533 A073242

Adjacent sequences: A087492 A087493 A087494 * A087496 A087497 A087498

Keyword

nonn,cons

Author

Eric W. Weisstein, Sep 09 2003

Status

approved