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A155413
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Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 2,2 3,3 4,3 5,4 5,5 polyhexes in any orientation on a planar nXnXn triangular grid.
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0
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1, 4, 13, 28, 111, 502, 1855, 7742, 47738, 322725, 2215451, 20024605, 210636607
(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
...........1
..........1.0
.........0.1.1
........1.0.0.1
.......0.1.0.1.0
......1.1.0.0.1.1
.....1.0.0.0.0.0.0
....0.1.0.1.1.0.1.1
...1.1.0.1.0.1.1.0.1
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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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