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A204726
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Number of (n+1)X3 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero
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1
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1624, 12744, 44726, 353626, 1425462, 10332706, 45388048, 307057212, 1435551124, 9233564740, 45214143964, 280355783930, 1421151419140, 8581104455222, 44642397960012, 264431250310716, 1402840195850906, 8195345840290280
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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..0..3....0..1..0....3..4..4....2..3..2....1..1..3....2..4..4....4..3..3
..4..3..2....3..3..3....3..4..2....0..1..0....3..0..3....1..2..0....4..0..4
..3..0..3....0..1..0....3..4..4....2..0..2....0..1..0....2..4..4....3..3..3
..3..3..3....3..0..3....3..4..2....1..1..2....3..2..3....1..2..0....3..1..3
..3..0..3....4..1..2....3..4..4....1..1..0....0..1..0....2..4..4....3..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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