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%I #3 Mar 31 2012 12:35:21
%S 1,2,2,4,14,27,101,792,2945,22285,347018,2474658,35967994,1067132131,
%T 14741727949,415083462852,23780332109409,637547853540004,
%U 34814820669689930
%N Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 7 ones in any 4 X 4 X 4 subtriangle.
%K nonn
%O 0,2
%A _R. H. Hardin_ Jan 03 2009
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