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A205201
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Number of (n+1)X4 0..2 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards
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1
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2830, 71355, 1649549, 30972970, 560385415, 9153899777, 145848261106, 2212185100843, 33020359800288, 481447058537957, 6954829242271663, 99373631556461784, 1412980217264335644, 19991930404931305073
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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
..1..2..0..0....2..2..0..1....2..0..1..1....2..1..1..1....2..1..1..1
..0..0..0..1....0..0..0..0....2..0..1..2....1..0..1..0....1..0..1..2
..2..2..2..1....2..2..1..0....2..0..1..1....0..1..1..1....2..1..1..1
..2..1..2..2....0..0..0..0....0..0..1..2....1..1..2..1....1..0..2..2
..2..2..2..2....1..2..1..2....0..0..2..1....1..1..1..1....2..1..1..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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