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A114598
Decimal expansion of Pi^2*(Pi/2 - 1).
0
5, 6, 3, 3, 5, 3, 3, 9, 3, 9, 0, 6, 0, 5, 5, 1, 4, 6, 8, 9, 0, 3, 6, 6, 6, 5, 3, 3, 6, 7, 4, 5, 4, 6, 4, 6, 5, 7, 9, 8, 9, 4, 4, 8, 7, 5, 7, 0, 1, 7, 6, 3, 2, 2, 0, 6, 5, 8, 9, 1, 9, 6, 7, 5, 6, 8, 3, 1, 5, 2, 6, 3, 6, 3, 1, 3, 6, 4, 7, 7, 7, 5, 7, 8, 1, 5, 7, 7, 1, 1, 2, 5, 8, 2, 8, 9, 0, 8, 6, 4, 6, 9
OFFSET
1,1
REFERENCES
H. Solomon, Geometric Probability, SIAM, 1978; see p. 7.
LINKS
Enis Sinikrasan, Throwing Buffon's Needle, The Mathematica Journal, Volume 11, Issue 1, p. 71.
Eric Weisstein's World of Mathematics, Buffon's Needle Problem
EXAMPLE
5.6335339390605514689036665336745464657989448757017632206589...
MATHEMATICA
RealDigits[Pi^2 (Pi/2-1), 10, 120][[1]] (* Harvey P. Dale, Apr 06 2014 *)
PROG
(PARI) Pi^2*(Pi/2-1) \\ Charles R Greathouse IV, Oct 01 2022
CROSSREFS
Sequence in context: A195448 A079267 A060296 * A272489 A259500 A274082
KEYWORD
nonn,cons,easy
AUTHOR
Eric W. Weisstein, Dec 13 2005
EXTENSIONS
Confirmed by Rick L. Shepherd, Feb 22 2006
Name edited (pi -> Pi) by Zak Seidov, Sep 24 2011
STATUS
approved