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A250860
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Number of (n+2)X(n+2) 0..3 arrays with nondecreasing sum of every three consecutive values in every row and column
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1
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262144, 128000000, 250000000000, 1953125000000000, 5744580078125000000, 43254022503125000000000, 833747762130149888000000000, 6537811332601933992442920960000, 104624647058119410496536003666247680
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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=1
..0..2..3....2..0..3....0..2..1....0..3..0....0..0..1....2..0..2....0..1..1
..3..3..3....0..3..2....2..2..3....3..0..2....2..3..3....2..1..2....3..2..2
..2..1..0....3..3..1....2..2..1....1..3..1....3..3..2....2..3..2....3..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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