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A233103
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Number of 6Xn 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, diagonally or antidiagonally, top left element zero, and 1 appearing before 2 in row major order
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1
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528, 25211, 2920145, 304926626, 33113065637, 3584186808548, 388985760511817, 42219381207630485, 4583504040235930607, 497623532490414737372, 54027709864321432349219, 5865910777448530290474011
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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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FORMULA
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Empirical recurrence of order 87 (see link above)
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EXAMPLE
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Some solutions for n=2
..0..1....0..1....0..0....0..0....0..1....0..1....0..1....0..0....0..1....0..1
..3..1....0..1....1..0....0..1....1..0....1..0....3..1....1..0....0..2....0..2
..0..2....1..0....1..0....0..2....1..3....1..0....1..1....1..3....0..1....0..1
..3..1....1..3....2..0....0..0....2..3....1..0....0..1....1..3....1..1....0..0
..3..1....3..3....2..0....2..2....3..3....0..1....0..1....1..3....1..0....1..1
..1..3....3..2....1..0....3..2....1..3....0..1....0..2....1..3....1..3....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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