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A186625
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T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with 3X3 subblock sums nondecreasing rightwards and downwards.
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4
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19683, 317115, 317115, 5109075, 9957573, 5109075, 82312875, 313250283, 313250283, 82312875, 1033357725, 9626194591, 19192412328, 9626194591, 1033357725, 12972796635, 205142945972, 1114156913743, 1114156913743
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OFFSET
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1,1
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COMMENTS
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Table starts
........19683........317115........5109075........82312875.....1033357725
.......317115.......9957573......313250283......9626194591...205142945972
......5109075.....313250283....19192412328...1114156913743.40638068592052
.....82312875....9626194591..1114156913743.117244058006472
...1033357725..205142945972.40638068592052
..12972796635.4375747771546
.162860787181
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LINKS
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EXAMPLE
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Some solutions for 5X4
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..1..1....1..0..1..2....0..0..0..2....0..0..0..2....1..0..2..2
..1..0..1..2....1..0..1..1....2..1..0..0....1..0..2..2....1..0..0..1
..0..1..2..1....2..1..2..1....1..2..0..1....2..2..2..2....1..0..1..0
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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