A154083 - OEIS

A154083

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 11.

%I #3 Mar 31 2012 12:35:22

%S 0,331,1896,0,2038,7351,0,4070,11033,0,1729

%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 11.

%K nonn

%O 5,2

%A _R. H. Hardin_ Jan 04 2009