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%I #24 May 09 2021 06:25:39
%S 2,3,5,7,0,2,2,6,0,3,9,5,5,1,5,8,4,1,4,6,6,9,4,8,1,2,0,7,0,1,6,1,6,3,
%T 4,6,4,2,8,2,7,8,6,4,5,8,9,6,1,5,8,0,1,2,1,9,6,1,1,3,2,8,9,6,6,5,1,2,
%U 2,0,7,9,7,4,3,6,8,4,5,0,6,4,7,5,0,6,4,5,8,9,0,5,4,6,0,6,9,2,8
%N Decimal expansion of 1/sqrt(18).
%C With offset 1, this is the decimal expansion of the volume of a cuboctahedron with edge length 1, which equals 5*sqrt(2)/3 = 2.357... . - _Wesley Ivan Hurt_, May 07 2021
%H Ivan Panchenko, <a href="/A020775/b020775.txt">Table of n, a(n) for n = 0..1000</a>
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Cuboctahedron">Cuboctahedron</a>
%e 0.2357022603955158414669481207016163464282786458961580121961132896... - _Vladimir Joseph Stephan Orlovsky_, May 30 2010
%t RealDigits[N[1/Sqrt[18],200]] (* _Vladimir Joseph Stephan Orlovsky_, May 30 2010 *)
%Y Cf. A343199 (cuboctahedron surface area).
%K nonn,cons
%O 0,1
%A _N. J. A. Sloane_
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