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A093601
Decimal expansion of constant in Kac's formula.
0
6, 2, 5, 7, 3, 5, 8, 0, 7, 2, 0, 5, 2, 7, 0, 0, 1, 9, 0, 4, 6, 4, 7, 4, 6, 9, 1, 8, 0, 3, 2, 8, 6, 0, 2, 8, 8, 7, 8, 1, 2, 9, 1, 8, 0, 3, 1, 4, 2, 2, 6, 2, 6, 4, 2, 8, 2, 8, 9, 7, 2, 1, 5, 8, 6, 8, 6, 0, 5, 4, 8, 3, 6, 8, 2, 4, 6, 3, 3, 4, 8, 0, 0, 5, 9, 3, 6, 0, 2, 2, 6, 0, 6, 0, 4, 4, 2, 9, 6, 8, 3, 1
OFFSET
0,1
REFERENCES
Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 2.15 Glaisher-Kinkelin constant, p. 141.
LINKS
Eric Weisstein's World of Mathematics, Kac's Formula
EXAMPLE
0.625735807...
MATHEMATICA
(2/Pi)*(Log[2] + NIntegrate[Sqrt[1/x^2 - 4*(Exp[ -2*x]/(1 - Exp[ -2*x])^2)] - 1/(x + 1), {x, 0, Infinity}, WorkingPrecision -> 50, PrecisionGoal -> 20])
CROSSREFS
Sequence in context: A010371 A270614 A011489 * A297981 A193780 A220260
KEYWORD
nonn,cons
AUTHOR
Eric W. Weisstein, Apr 03 2004
STATUS
approved