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A093823 Decimal expansion of ((5 - 2*sqrt(2))*Pi)/24. 1
2, 8, 4, 2, 5, 8, 2, 2, 4, 6, 5, 1, 3, 4, 3, 0, 7, 0, 7, 6, 1, 7, 2, 7, 2, 8, 9, 0, 1, 1, 5, 0, 5, 2, 9, 2, 6, 5, 6, 5, 2, 5, 1, 5, 0, 7, 5, 5, 1, 7, 2, 8, 6, 0, 7, 7, 9, 3, 3, 0, 4, 8, 9, 4, 8, 4, 4, 2, 5, 5, 1, 8, 5, 5, 1, 3, 3, 7, 3, 8, 2, 1, 6, 6, 2, 3, 0, 0, 1, 0, 7, 1, 5, 8, 7, 7, 2, 8, 6, 0, 4, 9 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Solution to the Kakeya needle problem.

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..10000

Vincent Borrelli, Jean-Luc Rullière, En cheminant avec Kakeya, Voyage au cœur des mathématiques, ENS Éditions, Lyon 2014 (in French) (see p. 119).

Eric Weisstein's World of Mathematics, Kakeya Needle Problem

EXAMPLE

0.284258224...

MATHEMATICA

RealDigits[((5-2*Sqrt[2])*Pi)/24, 10, 120][[1]] (* Harvey P. Dale, Sep 27 2015 *)

PROG

(PARI) ((5 - 2*sqrt(2))*Pi)/24 \\ Michel Marcus, Sep 22 2014

(MAGMA) SetDefaultRealField(RealField(100)); R:= RealField(); ((5-2*Sqrt(2))*Pi(R))/24; // G. C. Greubel, Oct 01 2018

CROSSREFS

Sequence in context: A200004 A253634 A152626 * A088154 A085993 A010595

Adjacent sequences:  A093820 A093821 A093822 * A093824 A093825 A093826

KEYWORD

nonn,cons,easy

AUTHOR

Eric W. Weisstein, Apr 16 2004

STATUS

approved

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Last modified September 26 23:32 EDT 2020. Contains 337378 sequences. (Running on oeis4.)