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A230755
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Number of (n+3)X(6+3) 0..2 arrays x(i,j) with each element 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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4120752, 3423037464, 3154520054700, 2446111719135732, 1928867953682733132, 1504181314566629793432, 1173949802576478433728192, 915433809414452667025137888, 713802193109443984513638090432
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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=1
..0..1..0..2..1..0..0..2..0....0..2..0..1..1..2..0..2..0
..2..1..0..0..1..2..0..1..1....0..1..2..0..1..2..0..1..1
..0..0..2..2..2..1..1..0..2....0..1..2..0..1..1..2..2..0
..2..1..1..1..1..1..2..0..2....0..2..2..1..2..0..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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