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A133077 Decimal expansion of smallest disk radius for which five equal disks can cover the unit disk. 2
6, 0, 9, 3, 8, 2, 8, 6, 4, 0, 8, 0, 7, 0, 9, 6, 5, 4, 6, 7, 7, 7, 1, 0, 1, 6, 9, 5, 9, 8, 6, 7, 3, 6, 3, 1, 5, 0, 9, 6, 8, 1, 9, 5, 1, 5, 8, 0, 9, 9, 9, 7, 6, 8, 3, 4, 7, 2, 5, 6, 5, 4, 5, 5, 4, 6, 7, 2, 7, 7, 4, 1, 2, 8, 3, 6, 3, 3, 4, 5, 0, 2, 6, 0, 4, 6, 4, 8, 6, 1, 7, 6, 7, 0, 3, 2, 7, 5, 4, 4, 2, 1, 5, 5, 0 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

S. R. Finch, Mathematical Constants, Cambridge, 2003, Section 8.2 p. 486.

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..5000

Eric Weisstein's World of Mathematics, Disk Covering Problem

EXAMPLE

0.60938286408070965467...

MATHEMATICA

Root[1296*x^8 + 2112*x^7 - 3480*x^6 + 1360*x^5 + 1665*x^4 - 1776*x^3 + 22*x^2 - 800*x + 625, x, 3] // RealDigits[#, 10, 105]& // First (* Jean-Fran├žois Alcover, May 19 2014 *)

PROG

(PARI)  polrootsreal(1296*x^8 +2112*x^7 -3480*x^6 +1360*x^5 +1665*x^4 -1776*x^3 +22*x^2 -800*x +625)[3] \\ Charles R Greathouse IV, Apr 14 2014

CROSSREFS

Sequence in context: A248681 A232815 A323606 * A200124 A016628 A112246

Adjacent sequences:  A133074 A133075 A133076 * A133078 A133079 A133080

KEYWORD

nonn,cons

AUTHOR

Eric W. Weisstein, Sep 08 2007

STATUS

approved

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Last modified October 19 04:40 EDT 2019. Contains 328211 sequences. (Running on oeis4.)