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A245018 Duplicate of A241991 0

%I #35 Jul 07 2023 11:40:12

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

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

%U 8,4,4,6,8,7,4,1,0,8,4,0,5,2,5,1,2,7,0,3,1,0,6,0,2,6,1,0,0,3,0,6

%N Duplicate of A241991

%H Steven R. Finch, <a href="http://arxiv.org/abs/2001.00578">Errata and Addenda to Mathematical Constants</a>, arXiv:2001.00578 [math.HO], 2020, p. 3.

%H S. R. Holcombe, <a href="http://arxiv.org/abs/1204.2451">A product representation for Pi</a>, arXiv:1204.2451 [math.NT], 2012.

%F exp(1/2 + 2*Pi/3 - zeta(3)/(2*Pi^2) + Li_3(e^(-2*Pi))/(2*Pi^2) + Li_2(e^(-2*Pi))/Pi)/(2*sinh(Pi)).

%e 0.545781838833987082523490397255658774033687913298...

%p evalf(product((1+1/n^2)^(n^2)/exp(1), n=1..infinity), 120) # _Vaclav Kotesovec_, Sep 17 2014

%t p = Exp[1/2 + 2*Pi/3 - Zeta[3]/(2*Pi^2) + PolyLog[3, E^(-2*Pi)]/(2*Pi^2) + PolyLog[2, E^(-2*Pi)]/Pi]/(2*Sinh[Pi]); RealDigits[p, 10, 100] // First

%o (Python)

%o from mpmath import *

%o mp.dps=101

%o C = exp(1/2 + 2*pi/3 - zeta(3)/(2*pi**2) + polylog(3, e**(-2*pi))/(2*pi**2) + polylog(2, e**(-2*pi))/pi)/(2*sinh(pi))

%o print([int(n) for n in list(str(C)[2:-1])]) # _Indranil Ghosh_, Jul 03 2017

%K dead

%O 0,1

%A _Jean-François Alcover_, Sep 17 2014

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Last modified April 25 10:22 EDT 2024. Contains 371967 sequences. (Running on oeis4.)