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A250930
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Number of (n+1)X(3+1) 0..3 arrays with no 2X2 subblock having a diagonal absolute difference less than its antidiagonal absolute difference
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1
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16588, 1104364, 73855420, 4951389320, 332020435016, 22261912983384, 1492624513556120, 100078269167905748, 6710111606201809248, 449903872553731244740, 30165440987778271211784, 2022551639273611063403040
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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 64 (see link above)
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EXAMPLE
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Some solutions for n=1
..0..0..2..1....2..1..3..3....3..0..2..1....2..2..3..1....2..1..0..0
..1..1..1..2....0..1..3..2....1..2..0..0....3..3..0..2....0..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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