A289504 Decimal expansion of 2*(1+3^(3/2)/(2*Pi)).

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

Offset

1,1

Links

Table of n, a(n) for n=1..86.

S. R. Finch, Mean width of a regular simplex, arxiv:1111.4976 [math.MG], (2016), nu_2.

Index entries for transcendental numbers

Formula

Equals 2*(1+A086089).

Example

3.6539866862653761485339794949389083241921...

Maple

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

Mathematica

RealDigits[2(1+3^(3/2)/(2Pi)), 10, 120][[1]] (* Harvey P. Dale, Nov 05 2019 *)

Prog

(Python)
from mpmath import *
mp.dps=86
C=2*(1 + 3*sqrt(3)/(2*pi))
print([int(n) for n in list(str(C).replace('.', ''))]) # Indranil Ghosh, Jul 08 2017
(PARI) 2+3*sqrt(3)/Pi \\ Charles R Greathouse IV, Oct 01 2022

Crossrefs

Sequence in context: A361985 A346602 A102621 * A347538 A159066 A338052

Adjacent sequences: A289501 A289502 A289503 * A289505 A289506 A289507

Keyword

nonn,cons,easy

Author

R. J. Mathar, Jul 07 2017

Status

approved