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A209019
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T(n,k)=Number of nXk 0..3 arrays with no element equal the average of immediate neighbors vertically above, diagonally above and left, and horizontally left of it
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8
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4, 12, 12, 36, 130, 36, 108, 1430, 1430, 108, 324, 15724, 57412, 15724, 324, 972, 172936, 2303052, 2303052, 172936, 972, 2916, 1901964, 92409982, 337083370, 92409982, 1901964, 2916, 8748, 20918008, 3707858104, 49349902246, 49349902246
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OFFSET
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1,1
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COMMENTS
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Table starts
....4........12............36................108....................324
...12.......130..........1430..............15724.................172936
...36......1430.........57412............2303052...............92409982
..108.....15724.......2303052..........337083370............49349902246
..324....172936......92409982........49349902246.........26361689168962
..972...1901964....3707858104......7224768704460......14081479775124768
.2916..20918008..148774643618...1057701934285612....7521858792951566188
.8748.230058424.5969451726624.154846841369187254.4017924265572698697072
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LINKS
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EXAMPLE
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Some solutions for n=4 k=3
..3..1..2....1..3..0....0..2..0....1..2..0....0..1..3....3..2..3....0..1..0
..1..3..3....2..1..3....3..0..0....3..3..3....2..3..1....0..2..3....3..2..2
..3..1..3....0..2..0....2..1..1....0..0..0....1..3..0....3..0..1....1..3..1
..1..3..3....1..2..0....0..2..1....2..1..3....2..0..0....2..3..2....2..3..2
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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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