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A155234
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Number of ways to place zero or more nonadjacent 0,0 1,0 1,1 2,0 3,1 polyhexes in any orientation on a planar nXnXn triangular grid.
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0
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1, 13, 37, 73, 777, 9141, 72173, 857297, 18077297, 462703693, 12835269909, 499538698537, 27296320407513, 1893299363272421, 164544756777460349
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OFFSET
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3,2
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LINKS
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EXAMPLE
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Maximal 7 X 7 X 7 example
.........0
........1.1
.......0.0.1
......0.0.1.1
.....1.1.0.0.0
....1.0.0.1.0.1
...1.1.0.0.1.1.1
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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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