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Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 5 X 5 X 5 subtriangle summing to 11.
0

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

%S 4356,22042,45272,88706,98900,136385,149064,106717,64675,36589,21463,

%T 11783,8185,7433,7667,7302,7821,7260,6960,7260,7620,7892,6960,7260,

%U 6960,7260,8148,7260,6960,7260,6960,7892,7620,7260,6960,7260,7812,7260,7620

%N Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 5 X 5 X 5 subtriangle summing to 11.

%K nonn

%O 5,1

%A _R. H. Hardin_ Jan 04 2009