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A230523
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Number of nX5 0..2 arrays x(i,j) with each element horizontally, vertically, diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero
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1
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0, 4374, 627350, 110423366, 19885757988, 3550368078592, 634283945584134, 113331393339170666, 20248908527968033824, 3617875975370408606256, 646406974219120549256894, 115493709925996602462021262
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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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FORMULA
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Empirical recurrence of order 52 (see link above)
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EXAMPLE
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Some solutions for n=3
..0..0..1..0..2....0..0..1..0..1....0..0..1..0..0....0..0..1..1..2
..1..2..2..1..2....2..1..0..2..1....0..1..1..2..1....0..1..1..2..0
..1..0..0..2..1....1..0..2..2..1....1..2..1..0..2....2..2..1..1..2
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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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