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A011952
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Number of Barlow packings with group P3(bar)m1(O) that repeat after 2n layers.
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0
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2, 3, 8, 16, 40, 73, 165, 320, 666, 1323, 2709, 5364, 10880, 21675, 43577, 87040, 174590, 348787, 698709, 1396736, 2795400, 5589672
(list; graph; refs; listen; history; internal format)
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