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A222367
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Number of nX4 0..2 arrays with no more than floor(nX4/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order
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1
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4, 10, 40, 191, 992, 11249, 73499, 860209, 6307306, 74012176, 548361088, 6378096812, 48367991654, 550707554841, 4263914923100, 47703529309311, 376110082681155, 4139579798966437, 33202155719397274, 359908637810354268
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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=4
..0..1..1..1....0..1..1..2....0..1..0..0....0..0..0..0....0..1..1..1
..2..1..1..1....2..2..2..2....2..0..0..0....1..0..0..0....0..1..1..1
..0..1..1..1....2..2..2..2....0..0..0..0....0..0..0..0....0..1..1..1
..2..1..1..1....2..2..2..2....0..0..0..0....1..0..0..0....1..1..1..1
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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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