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%I #3 Mar 31 2012 12:35:21
%S 1,2,2,4,14,16,62,400,1312,8228,101575,539692,5945952,128078527,
%T 1209629759,22708191479,862913200941
%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 5 X 5 X 5 subtriangle.
%K nonn
%O 0,2
%A _R. H. Hardin_ Jan 03 2009
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