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A155440
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Number of ways to place zero or more nonadjacent 1,0 2,0 2,2 3,0 3,2 4,1 4,2 5,1 polyhexes in any orientation on a planar nXnXn triangular grid.
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0
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1, 7, 19, 37, 76, 332, 1823, 10749, 53165, 313295, 2436626, 24495034, 277288339, 3304478802, 44732292922, 736452039398
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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5,2
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COMMENTS
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Same series for 1,1 2,0 2,1 3,2 3,3 4,2 4,3 5,4 polyhexes.
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LINKS
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EXAMPLE
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Maximal 10 X 10 X 10 example
............0
...........0.1
..........1.0.1
.........0.1.0.1
........0.0.1.1.0
.......0.1.0.0.1.0
......1.1.0.0.0.0.0
.....1.0.1.0.0.1.1.1
....1.0.1.0.1.1.0.0.0
...0.0.1.0.0.0.1.1.1.0
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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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