%I #3 Mar 31 2012 12:35:22
%S 10,49,83,111,126,92,91,126,90,72,74,29,14,22,22,12,10
%N Number of planar triangular n X n X n nonnegative integer grids symmetric under 120 degree rotation with every similarly oriented 4 X 4 X 4 subtriangle summing to 8.
%e Maximal zeros solution for n=4
%e .....0
%e ....0.0
%e ...0.8.0
%e ..0.0.0.0
%K nonn
%O 4,1
%A _R. H. Hardin_ Jan 04 2009
