%I #3 Mar 31 2012 12:35:22
%S 126,1131,9526,8779,13757,78476,63531,47267,239549,59060
%N Number of planar triangular n X n X n nonnegative integer grids symmetric under 120 degree rotation with every similarly oriented 5 X 5 X 5 subtriangle summing to 15.
%K nonn
%O 5,1
%A _R. H. Hardin_ Jan 04 2009