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A197339
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Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,2,1,2 for x=0,1,2,3,4
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1
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1, 18, 103, 681, 4005, 25336, 159818, 998934, 6247167, 39159520, 245281909, 1536123953, 9621537368, 60265981592, 377473012241, 2364297523481, 14808808584343, 92755034615479, 580971270750017, 3638915917088053
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OFFSET
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1,2
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COMMENTS
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Every 0 is next to 0 3's, every 1 is next to 1 3's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 2's
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LINKS
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EXAMPLE
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Some solutions containing all values 0 to 4 for n=4
..0..0..0..1..0....0..0..1..3..1....2..2..2..0..1....0..0..2..2..2
..2..2..2..3..1....2..2..2..1..1....2..4..2..1..3....0..0..2..4..2
..2..4..2..1..0....2..4..2..1..3....2..2..2..0..1....0..1..2..2..2
..2..2..2..0..0....2..2..2..0..1....0..0..0..0..0....1..3..1..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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