A145663 - OEIS

%I #9 Oct 01 2022 23:33:13

%S 2,1,6,9,8,8,7,0,2,5,4,1,4,5,2,9,0,0,0,9,3,8,8,8,0,6,3,5,3,5,3,0,1,0,

%T 8,5,1,6,4,5,6,0,5,1,6,8,0,8,6,6,6,3,4,8,6,4,9,7,2,5,6,5,6,2,2,3,6,2,

%U 0,4,7,4,3,0,6,2,1,7,6,2,8,9,8,9,0,1,8,3,3,1,6,0,6,8,8,4,3,3,4

%N Decimal expansion of (1/Pi)*(1-1/Pi).

%D H. Solomon, Geometric Probability, SIAM, 1978; see p. 6.

%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>

%e .21698870254145290009388806353530108516456051680866634864972...

%t RealDigits[1/Pi (1-1/Pi),10,120][[1]] (* _Harvey P. Dale_, May 09 2012 *)

%o (PARI) (1-1/Pi)/Pi \\ _Charles R Greathouse IV_, Mar 25 2014

%K nonn,cons

%O 0,1

%A _N. J. A. Sloane_, Sep 16 2009