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A262820
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Number of (1+3)X(n+3) 0..1 arrays with each row divisible by 9 and column not divisible by 9, read as a binary number with top and left being the most significant bits.
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1
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0, 0, 2744, 21610, 234096, 3103450, 43563108, 617554352, 8776056648, 121679222354, 1695215156348, 23701894089472, 331858416865360, 4647495627474864, 65083961876291512, 910998629244209610
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OFFSET
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1,3
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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..0..0..1..0..0....0..0..0..0..0..0..0....1..1..0..0..0..1..1
..0..1..1..1..1..1..1....0..1..1..1..1..1..1....1..1..0..1..1..0..0
..1..0..0..1..0..0..0....0..0..1..1..0..1..1....0..0..1..1..0..1..1
..0..0..1..1..0..1..1....1..1..0..1..1..0..0....1..0..0..1..0..0..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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