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A204756
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Number of (n+1)X2 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero
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1
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1175, 3677, 11081, 38789, 131613, 469999, 1652217, 5928687, 21125147, 75994701, 272583363, 982624719, 3538616555, 12780460757, 46152949595, 166980292941, 604289827009, 2189737689861, 7938299557587, 28806261483751, 104582844671167
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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
..0..5....3..4....1..4....4..1....2..1....0..1....3..3....1..2....2..4....0..5
..4..5....1..5....3..3....3..5....4..1....4..2....2..2....1..5....0..5....1..4
..4..0....3..4....2..3....4..1....2..1....0..1....4..2....1..2....2..3....1..1
..3..5....4..1....3..3....3..5....2..2....4..4....0..3....1..5....0..5....0..5
..1..5....3..4....0..5....4..1....0..3....0..1....4..2....1..2....2..0....1..0
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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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