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A047787 Decimal expansion of (-1)*Gamma'(1/3)/Gamma(1/3) where Gamma(x) denotes the Gamma function. 10
3, 1, 3, 2, 0, 3, 3, 7, 8, 0, 0, 2, 0, 8, 0, 6, 3, 2, 2, 9, 9, 6, 4, 1, 9, 0, 7, 4, 2, 8, 7, 2, 6, 8, 8, 5, 4, 1, 5, 5, 4, 2, 8, 2, 9, 6, 7, 2, 0, 4, 1, 8, 0, 6, 4, 1, 9, 2, 7, 5, 1, 2, 0, 3, 0, 3, 5, 1, 7, 0, 7, 5, 7, 1, 6, 8, 7, 5, 5, 0, 6, 3, 0, 8, 9, 4, 3, 3, 1, 8, 9, 6, 1, 8, 3, 7, 4, 9, 6, 7, 1, 2, 4, 6, 9 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Decimal expansion of -psi(1/3). - Benoit Cloitre, Mar 07 2004

REFERENCES

S. J. Patterson, "An introduction to the theory of the Riemann zeta function", Cambridge studies in advanced mathematics no. 14, p. 135

LINKS

Table of n, a(n) for n=1..105.

FORMULA

Gamma'(1/3)/Gamma(1/3)=-EulerGamma-(3/2)*log(3)-Pi/(2*sqrt(3))=-3.13203378002... where EulerGamma is the Euler-Mascheroni constant (A001620).

MATHEMATICA

RealDigits[PolyGamma[1/3], 10, 105] // First (* Jean-Fran├žois Alcover, Aug 08 2015 *)

PROG

(PARI) Euler+(3/2)*log(3)+Pi/(2*sqrt(3))

CROSSREFS

Sequence in context: A263677 A099906 A262026 * A102668 A243848 A057741

Adjacent sequences:  A047784 A047785 A047786 * A047788 A047789 A047790

KEYWORD

cons,nonn

AUTHOR

Benoit Cloitre, May 24 2003

STATUS

approved

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Last modified February 7 01:12 EST 2016. Contains 268050 sequences.