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A262853
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Number of (4+2)X(n+2) 0..1 arrays with each row divisible by 7 and column not divisible by 7, read as a binary number with top and left being the most significant bits.
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1
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54, 396, 5184, 420654, 14762016, 661066920, 35819485902, 1848763876932, 97674093333720, 5273363053187598, 283250082728896200, 15255186777350855280, 823762481842229569614, 44454274055540034471036, 2399751878355335217728304
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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..1..1..0..0....0..0..1..1..1....0..1..1..1..0....0..0..1..1..1
..0..0..1..1..1....0..0..0..0..0....1..1..1..0..0....1..0..1..0..1
..0..0..1..1..1....0..0..1..1..1....0..0..0..0..0....0..0..0..0..0
..0..0..0..0..0....0..0..0..0..0....0..1..1..1..0....0..0..1..1..1
..0..1..1..1..0....1..1..1..0..0....0..0..1..1..1....0..1..1..1..0
..0..0..1..1..1....1..1..1..0..0....1..0..1..0..1....0..1..1..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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