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A205176
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Number of (n+1) X 4 0..3 arrays with the permanents of 2 X 2 subblocks nondecreasing rightwards and downwards.
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1
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23244, 1373400, 73775908, 2902004018, 109885347688, 3518676186849, 109442756670711, 3115212983893648, 86726190046550479, 2304039589889181877, 60300435912522661946, 1540435957552411019321, 39002535056386537871612
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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=4
..3..3..1..1....1..0..0..0....1..3..2..0....1..1..0..3....1..0..3..3
..1..0..1..2....0..0..2..1....0..0..0..1....2..1..3..3....1..3..2..2
..1..3..1..2....0..1..3..1....0..1..3..3....3..0..3..2....1..1..3..3
..1..2..1..3....3..3..1..3....3..2..3..0....2..1..3..3....1..3..2..3
..2..1..2..1....0..1..3..1....3..1..3..3....0..2..2..3....1..1..3..3
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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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