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A263554
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Number of (n+1)X(4+1) 0..4 arrays with each row and column divisible by 7, read as a base-5 number with top and left being the most significant digits.
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1
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148, 38765, 17320937, 7482387694, 3329112703479, 1485319362369333, 663874095310569770, 296740438457241675181, 132642978480405727200625, 59291274935884695716685936, 26503191614818198625800327563
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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
..1..0..3..4..1....1..1..0..2..3....0..1..3..0..3....2..3..4..2..1
..2..4..0..1..2....4..2..4..4..0....0..4..3..1..1....2..0..1..2..3
..0..1..2..0..0....4..0..1..0..2....0..4..1..2..4....3..2..0..3..2
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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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