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A155414
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Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,0 3,1 4,0 5,1 6,1 polyhexes in any orientation on a planar n X n X n triangular grid.
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0
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1, 7, 19, 52, 254, 1049, 4097, 19919, 121609, 822616, 6525958, 61351204
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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6,2
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LINKS
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EXAMPLE
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Maximal 10 X 10 X 10 example
............1
...........1.0
..........0.1.0
.........1.1.0.1
........1.0.0.0.1
.......0.1.0.0.1.0
......0.1.0.0.0.1.1
.....0.0.0.0.0.0.0.1
....0.1.1.0.1.1.0.1.0
...1.1.0.1.1.0.0.0.1.0
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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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