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A088374 Decimal expansion of a postulated upper estimate for the complex Grothendieck constant. 3
1, 4, 0, 4, 9, 0, 9, 1, 3, 2, 7, 3, 5, 7, 9, 5, 5, 3, 5, 5, 2, 5, 4, 4, 8, 1, 5, 0, 6, 1, 4, 6, 5, 4, 3, 4, 2, 7, 8, 1, 3, 4, 7, 6, 8, 0, 1, 8, 4, 1, 0, 8, 9, 5, 0, 5, 6, 8, 1, 1, 1, 6, 4, 1, 0, 6, 4, 9, 2, 8, 5, 4, 2, 9, 1, 8, 8, 7, 5, 4, 1, 5, 1, 1, 5, 2, 3, 4, 6, 0, 5, 2, 7, 2, 4, 6, 6, 8, 3, 7, 2, 6 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

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

EXAMPLE

1.40491...

MATHEMATICA

psi[x_] := (Sqrt[1 - x^2]*(EllipticE[-x^2/(1 - x^2)] - EllipticK[-x^2/(1 - x^2)]))/x; x0 = x /. FindRoot[psi[x] == 1/8*Pi*(x + 1), {x, 1/2}, WorkingPrecision -> 110]; RealDigits[8/(Pi*(x0 + 1)), 10, 102] // First (* Jean-Fran├žois Alcover, Feb 06 2013 *)

CROSSREFS

Cf. A088367, A088373, A088375.

Sequence in context: A176714 A055951 A165032 * A156732 A200341 A101980

Adjacent sequences:  A088371 A088372 A088373 * A088375 A088376 A088377

KEYWORD

nonn,cons

AUTHOR

Eric W. Weisstein, Sep 28 2003

STATUS

approved

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Last modified January 22 22:16 EST 2020. Contains 331166 sequences. (Running on oeis4.)