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A203359
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Number of nX5 binary arrays with every 1 immediately preceded by 0 to the left or above
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1
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8, 182, 3042, 55517, 984703, 17631496, 314688054, 5622720187, 100426911671, 1793946112019, 32044214326230, 572395728321380, 10224472420371970, 182635919619144937, 3262355031315093696, 58274202397081882837
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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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FORMULA
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Empirical: a(n) = 8*a(n-1) +148*a(n-2) +471*a(n-3) +578*a(n-4) -25*a(n-5) -302*a(n-6) +171*a(n-7) +90*a(n-8)
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EXAMPLE
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Some solutions for n=4
..0..0..0..0..0....0..1..0..0..1....0..0..0..0..1....0..1..0..0..0
..1..1..0..1..1....0..1..0..0..1....0..1..1..1..0....0..1..1..0..0
..0..0..1..0..0....0..0..0..0..0....1..0..0..0..0....1..0..0..0..0
..0..1..0..0..1....1..1..1..1..1....0..1..0..1..1....0..1..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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