%I #3 Mar 31 2012 12:35:21
%S 11628,79753,235290,356994,326326,194107,148269,45493,15037,5541,2529,
%T 2511,2511,2511,2511,2511,2511,2511,2511,2511,2511,2511,2511,2511,
%U 2511,2511,2511,2511,2511,2511,2511,2511,2511,2511,2511,2511,2511,2511,2511
%N Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 5 X 5 X 5 subtriangle summing to 5.
%C Value 2511 starts at n=16 and continues through at least n=49.
%e Maximal zeros solution for n=16
%e .................0
%e ................0.0
%e ...............0.0.2
%e ..............0.2.0.0
%e .............1.0.0.0.0
%e ............1.0.0.0.1.0
%e ...........0.0.0.1.0.1.0
%e ..........0.0.0.1.1.0.0.0
%e .........0.0.2.0.0.0.0.0.2
%e ........0.2.0.0.0.0.0.2.0.0
%e .......1.0.0.0.0.1.1.0.0.0.0
%e ......1.0.0.0.1.0.1.0.0.0.1.0
%e .....0.0.0.1.0.1.0.0.0.1.0.1.0
%e ....0.0.0.1.1.0.0.0.0.1.1.0.0.0
%e ...0.0.2.0.0.0.0.0.2.0.0.0.0.0.2
%e ..0.2.0.0.0.0.0.2.0.0.0.0.0.2.0.0
%K nonn
%O 5,1
%A _R. H. Hardin_ Jan 04 2009