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A230967
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Number of n X 5 0..3 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 4 and at least one element with value (x(i,j)-1) mod 4, and upper left element zero.
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1
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0, 1732, 220970, 66622532, 20816992724, 6479894318198, 2012129115093308, 626306050264214612, 194986475188899358816, 60695893045948486447450, 18894590354461901315111820, 5881924926873718865927435500
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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..3..3..2....0..1..2..1..0....0..1..0..1..2....0..0..2..0..0
..3..1..2..0..1....2..3..3..3..2....2..3..2..0..3....3..1..0..3..1
..2..0..2..3..0....0..1..2..0..1....0..1..2..1..0....0..2..2..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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