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A221254
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Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2
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1
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32, 14112, 7356420, 4085800416, 2294073688498, 1286684357154700, 720107530988047980, 402418492897385719539, 224687866990231144007434, 125391176411370052357764435, 69957473447300728012460144928
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..0..1..2..2..2..2..0....0..1..2..2..2..1..0....0..1..2..2..1..1..2
..0..2..1..2..0..1..0....0..2..1..0..1..2..2....0..1..2..2..1..2..0
..0..0..1..0..2..2..1....0..0..1..2..0..2..0....0..1..0..1..1..1..0
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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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