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A155301
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Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,1 3,2 4,1 polyhexes in any orientation on a planar nXnXn triangular grid.
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0
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1, 13, 37, 73, 274, 2707, 30458, 210247, 1927098, 30544775, 732699440, 16750707651, 417262694530, 14440304500005, 706310189376904
(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 13 X 13 X 13 example
...............0
..............0.1
.............1.1.0
............1.0.1.0
...........0.1.0.0.0
..........0.0.0.0.0.0
.........1.0.0.0.0.0.1
........1.0.1.0.0.1.0.1
.......0.1.1.0.0.0.1.1.0
......1.0.0.1.0.0.1.0.0.1
.....1.0.1.0.0.1.0.0.1.0.1
....0.1.1.0.1.1.0.1.0.1.1.0
...0.0.0.1.0.0.1.1.0.1.0.0.0
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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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