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A155331
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Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,0 4,0 5,0 6,1 polyhexes in any orientation on a planar nXnXn triangular grid.
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0
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1, 4, 13, 28, 131, 616, 2577, 12364, 77884, 560672, 4490012, 45293635, 525483762
(list;
graph;
refs;
listen;
history;
text;
internal format)
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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 9 X 9 X 9 example
...........0
..........1.1
.........1.0.0
........1.0.1.1
.......1.0.0.0.1
......1.0.0.0.0.1
.....0.1.0.0.0.0.1
....1.0.0.0.0.1.0.1
...0.1.1.1.1.1.0.1.0
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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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