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%I #13 Dec 10 2023 12:57:42
%S 1,5,20,53,116,213,360,561,832,1171,1600
%N Coordination sequence for 4-dimensional lonsdaleite (or wurtzite).
%D M. O'Keeffe, N-dimensional diamond, sodalite and rare sphere packings, Acta Cryst., A 47 (1991), 749-753.
%H M. O'Keeffe, <a href="http://dx.doi.org/10.1107/S0108767391006633">N-dimensional diamond, sodalite and rare sphere packings</a>, Acta Cryst., A 47 (1991), 749-753.
%Y For 3-D see A008264. Cf. A008525 etc.
%K nonn,more
%O 0,2
%A _N. J. A. Sloane_.
%E Missing a(1)=5 inserted by _Sean A. Irvine_, Oct 17 2020
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