%I #17 Oct 13 2023 07:36:08
%S 5,0,3,8,7,8,4,8,7,9,8,4,8,5,6,7,2,4,5,4,3,5,7,4,2,8,7,3,3,5,5,8,8,3,
%T 2,2,1,8,9,0,8,8,7,9,4,5,8,6,1,9,0,1,0,4,8,5,6,4,7,0,7,6,8,5,5,8,3,3,
%U 7,9,8,4,9,4,4,3,7,8,7,1,0,5,8,6,8,6,0,2,2,9,8,1,9,9,1,5,9,2,1,9,4,0,8
%N Decimal expansion of Madelung constant (negated) for calcium fluoride CaF_2.
%H Leslie Glasser, <a href="https://doi.org/10.1021/ic2023852">Solid-State Energetics and Electrostatics: Madelung Constants and Madelung Energies</a>, Inorg. Chem., 2012, 51 (4), 2420-2424.
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Fluorite_structure">Fluorite structure</a>.
%F This constant = sqrt(3)/2 * A085469 + 2 * A181152. [Glasser] - _Andrey Zabolotskiy_, Oct 12 2023
%e -5.0387848798...
%Y Cf. A085469, A181152, A182565, A182566.
%K nonn,cons
%O 1,1
%A _N. J. A. Sloane_, May 05 2012
%E More terms using the formula added by _Andrey Zabolotskiy_, Oct 12 2023