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A155232
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Number of ways to place zero or more nonadjacent 0,0 1,0 1,1 2,0 2,2 polyhexes in any orientation on a planar nXnXn triangular grid.
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0
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1, 4, 10, 22, 40, 361, 2821, 19057, 110575, 1423822, 26284909, 502358770, 9341556682, 253322462407, 10114422061267, 485429682957349, 25616146962812161, 1724462843271452173, 157410261704230494205
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