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A222474
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Number of nX3 0..3 arrays with no more than floor(nX3/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order
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1
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1, 1, 5, 42, 45, 1582, 2953, 104833, 179105, 6910335, 12297363, 463356818, 842066129, 31086653839, 57898183793, 2088249634569, 3984107937241, 140397984424512, 274405097987979, 9447509884713957, 18914117934834161
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OFFSET
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1,3
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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..0..1....0..0..0....0..0..0....0..0..0....0..0..0....0..1..0....0..1..2
..2..2..2....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....2..2..2
..2..2..2....0..0..0....1..0..0....0..0..0....0..0..0....0..0..0....2..2..2
..2..2..2....0..0..0....1..0..0....1..0..1....1..1..0....0..0..0....2..2..2
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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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