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A263370
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Number of (n+1)X(5+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits.
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1
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10, 112, 9888, 826249, 84790557, 8491666657, 883978450474, 92359613590072, 9695725030142616, 1017738982928794777, 106860144447454638429, 11219638590333541521601, 1178048734539490226212450
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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
..2..0..2..0..2..0....1..0..2..0..1..1....2..2..0..0..1..0....1..1..1..0..2..0
..1..0..1..0..1..0....1..1..1..0..2..0....2..2..0..2..2..0....0..0..0..1..1..2
..2..2..0..2..2..0....2..1..2..2..1..2....1..1..2..1..1..2....0..0..2..1..2..1
..1..1..0..1..1..0....0..2..1..1..1..2....2..2..1..0..1..1....1..1..2..2..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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