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 A242617 Decimal expansion of Kuijlaars-Saff constant, a constant related to Tammes' constants, Thomson's electron problem and Fekete points. 4
 5, 5, 3, 0, 5, 1, 2, 9, 3, 3, 5, 7, 5, 9, 5, 1, 8, 6, 7, 7, 9, 9, 5, 1, 0, 3, 7, 0, 8, 7, 1, 2, 4, 7, 7, 4, 5, 5, 0, 8, 0, 2, 8, 5, 7, 6, 0, 1, 9, 6, 6, 1, 7, 7, 6, 3, 3, 0, 4, 0, 7, 0, 9, 7, 0, 5, 9, 5, 3, 8, 7, 8, 8, 4, 0, 7, 7, 1, 2, 5, 4, 1, 6, 8, 7, 0, 5, 3, 7, 3, 2, 6, 3, 1, 6, 8, 2, 9, 1, 3 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 REFERENCES S. R. Finch, Mathematical Constants, Cambridge, 2003, Section 8.8 p. 509. LINKS A. B. J. Kuijlaars and E. B. Saff, Asymptotics for minimal discrete energy on the sphere Eric Weisstein's MathWorld, Thomson Problem Wikipedia, Thomson problem FORMULA sqrt(3)*sqrt(sqrt(3)/(8*Pi))*zeta(1/2)*(zeta(1/2, 1/3) - zeta(1/2, 2/3)). EXAMPLE -0.5530512933575951867799510370871247745508... MATHEMATICA c = Sqrt[3]*Sqrt[Sqrt[3]/(8*Pi)]*Zeta[1/2]*(Zeta[1/2, 1/3] - Zeta[1/2, 2/3]); RealDigits[c, 10, 100] // First PROG (PARI) sqrt(sqrt(27)/8/Pi)*zeta(1/2)*(zetahurwitz(1/2, 1/3) - zetahurwitz(1/2, 2/3)) \\ Charles R Greathouse IV, Jan 31 2018 CROSSREFS Cf. A059750, A080865, A242088. Sequence in context: A287746 A128006 A157703 * A158349 A320478 A225302 Adjacent sequences:  A242614 A242615 A242616 * A242618 A242619 A242620 KEYWORD nonn,cons AUTHOR Jean-François Alcover, May 19 2014 STATUS approved

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Last modified January 23 16:36 EST 2020. Contains 331172 sequences. (Running on oeis4.)