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A204785
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Number of (n+1)X3 0..7 arrays with the permanents of all 2X2 subblocks equal and nonzero
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1
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13555, 224843, 793645, 14627079, 59657161, 986079019, 4471465369, 66978872631, 331873877771, 4574719987785, 24439406840701, 314037243688927, 1789071497341345, 21658929764256197, 130381268078683017
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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..1..5....7..1..7....7..4..4....5..5..7....0..2..3....7..7..7....5..4..4
..2..0..2....5..7..5....6..0..6....4..5..2....7..0..7....3..6..3....4..0..4
..1..1..0....7..1..7....2..4..7....5..5..7....2..2..2....7..7..7....1..4..5
..0..2..2....5..7..5....6..0..6....4..5..2....7..0..7....4..5..4....4..0..4
..1..0..1....7..1..7....5..4..6....5..5..7....1..2..7....7..7..7....5..4..7
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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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