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A155379
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Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 2,1 3,1 3,2 4,2 5,2 polyhexes in any orientation on a planar nXnXn triangular grid.
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0
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1, 7, 19, 37, 100, 521, 3034, 15439, 84733, 680192, 6722018, 71127189, 839682580, 12147844032
(list;
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OFFSET
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5,2
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LINKS
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EXAMPLE
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Maximal 10 X 10 X 10 example
............0
...........0.0
..........1.0.0
.........0.1.1.1
........1.0.1.1.1
.......1.0.0.0.0.1
......1.1.0.0.0.0.0
.....0.1.1.0.1.1.1.0
....0.0.1.0.0.0.1.1.0
...0.0.1.0.0.0.0.1.1.1
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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