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Decimal expansion of 2*(1+3^(3/2)/(2*Pi)).
1

%I #19 Oct 01 2022 15:39:07

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

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

%U 9,0,9,1,0,4,0,7,8,0,9,3,8,4,5,2,1,1

%N Decimal expansion of 2*(1+3^(3/2)/(2*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), nu_2.

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

%F Equals 2*(1+A086089).

%e 3.6539866862653761485339794949389083241921...

%p 2*(1+3*sqrt(3)/2/Pi); evalf(%) ;

%t RealDigits[2(1+3^(3/2)/(2Pi)),10,120][[1]] (* _Harvey P. Dale_, Nov 05 2019 *)

%o (Python)

%o from mpmath import *

%o mp.dps=86

%o C=2*(1 + 3*sqrt(3)/(2*pi))

%o print([int(n) for n in list(str(C).replace('.', ''))]) # _Indranil Ghosh_, Jul 08 2017

%o (PARI) 2+3*sqrt(3)/Pi \\ _Charles R Greathouse IV_, Oct 01 2022

%K nonn,cons,easy

%O 1,1

%A _R. J. Mathar_, Jul 07 2017