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A221754
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Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns
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0
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0, 171, 1680, 117067, 3143356, 128008894, 4330440582, 157745434617, 5576943832916, 199566264190831, 7105753950441404, 253532970709774991, 9038233928809650256
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OFFSET
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1,2
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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..2..1..1..2..2..1....0..2..0..2..0..2..1....0..2..1..1..1..1..2
..1..1..0..1..0..2..1....2..0..1..1..1..2..0....1..1..0..1..0..2..0
..1..1..1..1..0..1..1....1..1..1..1..1..1..1....1..2..1..1..1..1..1
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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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