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A250680
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Number of (4+1)X(n+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction
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1
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11736, 210158, 3107446, 41503790, 505108522, 5726252240, 61498698426, 632850763138, 6297768773474, 61000028098516, 578059653008102, 5380105017634102, 49331581021446126, 446710039295094002
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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
..2..0....2..1....1..2....3..0....2..0....0..2....1..2....0..2....1..1....0..3
..0..2....3..0....3..0....3..0....2..1....0..2....3..0....2..0....2..0....1..2
..2..0....3..0....1..2....3..0....2..2....0..2....1..2....2..1....2..2....1..2
..1..3....3..0....2..1....2..1....2..3....0..2....2..1....2..1....1..3....2..1
..3..1....3..0....3..0....1..3....3..2....1..1....2..3....2..2....2..2....0..3
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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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