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%I #6 Jun 26 2014 11:11:26
%S 4,0,8,3,1,9,1,9,2,2,1,1,6,2,9,7,9,5,3,5,4,8,6,5,8,7,6,5,3,8,6,2,2,6,
%T 6,5,6,3,4,1,3,2,9,1,6,8,0,4,1,0,4,3,7,1,5,1,2,4,7,4,0,6,2,6,4,1,8,5,
%U 4,0,3,6,1,7,6,0,6,1,7,8,0,2,3,1,4,3,6,7,0,7,2,3,3,1,8,3,1,2,7,9
%N Decimal expansion of the upper bound of the 4-dimensional simultaneous Diophantine approximation constant.
%D Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 2.23 Diophantine Approximation Constants, p. 174.
%H W. G. Spohn, <a href="http://www.jstor.org/discover/10.2307/2373489">Blichfeldt's Theorem and Simultaneous Diophantine Approximation</a>
%H Eric Weisstein's MathWorld, <a href="http://mathworld.wolfram.com/BlichfeldtsTheorem.html">Blichfeldt's Theorem</a>
%F 27/(4*(8*sqrt(3)*Pi - 27)).
%e 0.4083191922116297953548658765386...
%t RealDigits[27/(4*(8*Sqrt[3]*Pi - 27)), 10, 100] // First
%Y Cf. A244334, A244335, A244337, A244338.
%K nonn,cons,easy
%O 0,1
%A _Jean-François Alcover_, Jun 26 2014