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A221386
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Number of nX6 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no 2-loops and with no occupancy greater than 2
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1
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0, 190, 20689, 2204556, 229338911, 23796035743, 2468313810280, 256018996534929, 26554240706509311, 2754164301212641518, 285655522885766048508, 29627412820919433306924, 3072868482711331930833327
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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..1..0..2..2..1....0..2..1..0..0..1....0..1..2..1..1..1....0..1..1..1..2..1
..1..2..2..2..0..0....0..1..2..2..2..1....0..2..1..1..2..1....1..2..0..1..2..0
..1..0..1..1..2..0....1..2..1..0..2..0....0..1..1..1..2..0....1..2..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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