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%I #11 Jun 30 2021 08:23:02
%S 1,5,1,9,6,7,1,3,7,1,3,0,3,1,8,5,0,9,4,6,6,2,3,7,5,5,0,1,3,0,9,0,9,0,
%T 6,7,0,7,9,3,5,4,6,8,9,7,7,7,4,6,2,0,6,3,7,2,2,2,5,7,7,3,0,7,4,0,0,6,
%U 4,4,4,6,6,3,4,2,0,9,4,5,4,3,1,8,8,8,2,1,2,2,8,3,3,0,0,7,4,3,1,3,9,3,3,0,2
%N Decimal expansion of 2/(4th root of 3).
%C The side length of an equilateral triangle with area 1.
%C Quartic number with denominator 3 and minimal polynomial 3x^4 - 16. - _Charles R Greathouse IV_, Jun 30 2021
%F A154605 = 2/A011002 = 2/(3^(1/4)).
%e 1.5196713713031850946623755013090906...
%t RealDigits[N[2/3^(1/4),200]][[1]] (* _Vladimir Joseph Stephan Orlovsky_, Feb 05 2012 *)
%t RealDigits[2/Surd[3,4],10,120][[1]] (* _Harvey P. Dale_, Mar 09 2019 *)
%o (PARI) 2/3^(1/4)
%o (PARI) 2/sqrt(sqrt(3))
%Y Cf. A011002, A120011.
%K cons,nonn
%O 1,2
%A _Rick L. Shepherd_, Jan 12 2009
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