A114598 Decimal expansion of Pi^2*(Pi/2 - 1).

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

Table of n, a(n) for n=1..102.

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

Index entries for transcendental numbers

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

Adjacent sequences: A114595 A114596 A114597 * A114599 A114600 A114601

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