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A155343
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Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,1 3,2 4,3 4,4 polyhexes in any orientation on a planar nXnXn triangular grid.
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0
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1, 4, 10, 22, 55, 192, 702, 3882, 23422, 155527, 1170160, 10636314, 113496925, 1456900734, 21993819116
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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4,2
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LINKS
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EXAMPLE
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Maximal 12 X 12 X 12 example
..............0
.............0.0
............0.1.0
...........1.1.1.1
..........1.0.0.0.1
.........0.0.1.1.0.0
........0.1.1.0.0.1.0
.......1.0.1.0.1.1.1.1
......1.0.1.0.1.0.0.0.1
.....0.1.0.1.0.0.0.1.0.0
....0.1.1.0.0.0.1.1.1.1.0
...0.0.0.1.1.0.1.0.0.0.1.0
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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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