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A230574
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Number of 5Xn 0..4 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero
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1
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0, 0, 0, 430, 91084, 8554108, 615786708, 45684933988, 3311984113864, 238273036720020, 17116839496736710, 1229140365118078742, 88234310090425774078, 6333286108577217020782, 454581456095147492239504
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OFFSET
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1,4
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=4
..0..1..2..3....0..1..0..4....0..1..2..1....0..1..2..3....0..1..2..1
..0..1..4..0....2..3..4..0....2..3..4..3....0..1..4..0....2..3..0..0
..0..4..1..0....2..1..1..2....4..0..2..1....0..4..1..0....4..0..1..2
..3..2..1..0....0..4..3..2....1..2..0..4....3..2..4..1....4..3..3..4
..1..0..4..3....3..0..1..0....3..4..3..2....1..3..2..1....2..1..0..4
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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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