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%I #18 Oct 01 2022 23:59:35
%S 1,6,9,2,5,6,8,7,5,0,6,4,3,2,6,8,8,6,0,8,4,4,2,3,8,3,5,4,6,8,2,3,1,7,
%T 7,5,7,5,3,2,1,5,1,8,8,7,9,8,6,9,9,6,5,7,0,5,3,2,2,5,7,1,6,5,1,3,1,9,
%U 2,7,4,0,5,3,2,4,4,8,0,2,4,3,4,6,0,2,3,0
%N Decimal expansion of 3/sqrt(Pi).
%H S. R. Finch, <a href="http://arxiv.org/abs/1111.4976">Mean width of a regular simplex</a>, arxiv:1111.4976 [math.MG], (2016), mu_3.
%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%F Equals 3*A087197.
%e 1.6925687506432688608442383546823177...
%p 3/sqrt(Pi); evalf(%) ;
%o (Python)
%o from mpmath import mp, sqrt, pi
%o mp.dps=90
%o print([int(z) for z in list(str(3/sqrt(pi)).replace('.', '')[:-2])]) # _Indranil Ghosh_, Jul 08 2017
%o (PARI) 3/sqrt(Pi) \\ _Charles R Greathouse IV_, Oct 01 2022
%Y Cf. A087197 (1/sqrt(Pi)).
%K nonn,cons,easy
%O 1,2
%A _R. J. Mathar_, Jul 07 2017
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