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A155424
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Number of ways to place zero or more nonadjacent 1,1 2,0 2,1 3,2 4,3 4,4 5,3 5,4 polyhexes in any orientation on a planar nXnXn triangular grid.
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0
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1, 7, 19, 37, 97, 385, 1752, 10474, 62128, 377334, 2749676, 25769709, 285285035, 3566431622, 50164255930, 808544899113
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