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A251487
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Number of (n+1)X(4+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements
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1
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740096, 541815424, 396684056960, 290403118046224, 212595602301764864, 155634922739125247648, 113935706529820385852096, 83408950603225147662340176, 61061218725064232993811630272
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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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FORMULA
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Empirical recurrence of order 48 (see link above)
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EXAMPLE
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Some solutions for n=1
..0..0..1..0..2....0..2..3..0..0....2..0..1..0..3....3..0..0..3..0
..1..2..2..1..2....0..2..0..2..0....0..3..2..1..1....0..3..2..2..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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