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A154036 Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 5 X 5 X 5 subtriangle summing to 3. 0

%I

%S 680,2194,3418,3544,3331,2988,2519,1173,1157,1155,1155,1539,1155,1155,

%T 1155,1155,1539,1155,1155,1155,1155,1539,1155,1155,1155,1155,1539,

%U 1155,1155,1155,1155,1539,1155,1155,1155,1155,1539,1155,1155,1155,1155,1539

%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 3.

%C Pattern 1155 1155 1539 1155 1155 starts at n=14 and continues through at least n=53.

%e Maximal zeros solution for n=14

%e ...............0

%e ..............0.0

%e .............0.0.0

%e ............0.0.1.0

%e ...........0.1.0.0.1

%e ..........1.0.0.0.0.0

%e .........0.0.0.0.1.0.0

%e ........0.0.0.1.0.0.0.0

%e .......0.0.1.0.0.0.0.1.0

%e ......0.1.0.0.0.0.1.0.0.1

%e .....1.0.0.0.0.1.0.0.0.0.0

%e ....0.0.0.0.1.0.0.0.0.1.0.0

%e ...0.0.0.1.0.0.0.0.1.0.0.0.0

%e ..0.0.0.0.1.0.0.0.0.1.0.0.0.0

%K nonn

%O 5,1

%A _R. H. Hardin_ Jan 04 2009

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Last modified January 23 21:56 EST 2022. Contains 350515 sequences. (Running on oeis4.)