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A197536
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Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,0 for x=0,1,2,3,4
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1
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25, 361, 14085, 423085, 14056707, 454280983, 14991391782, 493785636151, 16343961543732, 541269402906501, 17943273862788427, 595019891173209941, 19736497896904338854, 654726724059190203302, 21721092108797190824889
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OFFSET
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1,1
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COMMENTS
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Every 0 is next to 0 2's, every 1 is next to 1 0's, every 2 is next to 2 1's, every 3 is next to 3 0's, every 4 is next to 4 0'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..3..0..3..0..0....0..3..0..3..0..1..2....1..0..0..0..0..1..2
..0..3..0..0..0..0..0....3..0..0..0..0..1..1....1..3..0..3..1..1..1
..1..1..0..4..0..0..3....0..4..0..3..1..1..0....0..0..4..0..3..0..0
..2..1..0..0..0..3..0....0..0..3..0..1..1..0....0..0..0..3..0..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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