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A263669
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Number of (n+1)X(3+1) 0..6 arrays with each row and column divisible by 11, read as a base-7 number with top and left being the most significant digits.
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1
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57, 8839, 1754966, 378616581, 82911301197, 18152851159044, 3975352956264593, 870600994321238466, 190661571787018620881, 41754877343568316205841, 9144318064083473783629151, 2002605652522800243822208723
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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=2
..3..2..5..4....2..0..4..1....6..6..1..6....0..0..4..5....5..0..4..6
..2..0..5..5....3..3..1..5....3..0..2..2....1..3..0..5....5..0..3..2
..4..1..6..0....2..1..6..4....4..3..3..0....4..1..2..6....6..0..3..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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