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%I #17 Jul 01 2023 15:25:28
%S 2,1,4,6,4,1,0,1,6,1,5,1,3,7,7,5,4,5,8,7,0,5,4,8,9,2,6,8,3,0,1,1,7,4,
%T 4,7,3,3,8,8,5,6,1,0,5,0,7,6,2,0,7,6,1,2,5,6,1,1,1,6,1,3,9,5,8,9,0,3,
%U 8,6,6,0,3,3,8,1,7,6,0,0,0,7,4,1,6,2,2,9,2,3,7,3,5,1,4,4,9,7,1,5
%N Decimal expansion of 18 + 2*sqrt(3).
%C Surface area of a rhombicuboctahedron with unit edge length.
%C Essentially the same sequence of digits as A176394 and A010469. - _R. J. Mathar_, May 07 2021
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Rhombicuboctahedron">Rhombicuboctahedron</a>
%e 21.464101615137754587054892683011744733885...
%t RealDigits[N[18 + 2*Sqrt[3], 100]][[1]] (* _Wesley Ivan Hurt_, Nov 12 2022 *)
%o (Magma) SetDefaultRealField(RealField(100)); 18+2*Sqrt(3);
%Y Cf. A343965 (rhombicuboctahedron volume).
%K nonn,cons
%O 1,1
%A _Wesley Ivan Hurt_, May 05 2021
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