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A226848
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Number of nX4 (0,1,2) arrays of permanents of 2X2 subblocks of some (n+1)X5 binary array
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1
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57, 2291, 49481, 989731, 20749217, 443724135, 9461306257, 201065855279, 4271553412923, 90781653057341, 1929581833121135, 41012559102622377, 871687516326898341, 18526964254094263855, 393775712485514542969
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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=3
..1..0..0..1....0..1..2..1....1..0..0..0....0..2..2..1....1..2..2..1
..0..1..0..1....0..2..1..1....0..0..1..2....1..1..1..0....1..1..1..1
..0..1..1..2....0..2..1..1....0..1..1..1....0..1..1..1....0..0..0..2
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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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