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A155345
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Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,1 4,1 5,2 6,2 polyhexes in any orientation on a planar nXnXn triangular grid.
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0
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1, 7, 19, 52, 193, 781, 3781, 20901, 131341, 1017012, 9065243, 91925870
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