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A251437
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Number of (n+1)X(3+1) 0..3 arrays with no 2X2 subblock having the minimum of its diagonal elements greater than the absolute difference of its antidiagonal elements
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1
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27486, 3204536, 360591824, 41060404870, 4653177899915, 528079828285838, 59895416958296448, 6794578583576754031, 770727122339512484660, 87427440690060912584495, 9917248465705842505589194
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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..0....1..1..1..1....0..3..2..0....2..2..2..3....0..0..2..3
..1..2..2..2....0..3..3..1....1..0..1..0....0..3..0..3....2..0..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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