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A155346 Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,1 4,1 5,2 5,3 polyhexes in any orientation on a planar nXnXn triangular grid. 0

%I

%S 1,7,19,37,94,330,1713,11184,64025,403539,3128291,30538252,364356710,

%T 4898497176,73557982663

%N Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,1 4,1 5,2 5,3 polyhexes in any orientation on a planar nXnXn triangular grid.

%e Maximal 12 X 12 X 12 example

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

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

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

%e ...........0.0.0.0

%e ..........1.1.0.1.1

%e .........1.0.0.0.0.1

%e ........0.1.0.0.0.1.0

%e .......0.1.0.0.0.0.1.0

%e ......1.0.1.1.0.1.1.0.1

%e .....1.0.0.0.0.0.0.0.0.1

%e ....0.1.1.0.1.0.1.0.1.1.0

%e ...0.0.0.1.1.0.0.1.1.0.0.0

%K nonn

%O 5,2

%A _R. H. Hardin_ Jan 22 2009

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Last modified July 2 21:48 EDT 2022. Contains 355029 sequences. (Running on oeis4.)