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A222285
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Number of nX3 0..1 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order
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1
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0, 4, 4, 35, 83, 532, 1427, 8540, 23798, 143594, 405187, 2455279, 6993039, 42590466, 121981025, 745909396, 2145554406, 13161790760, 37983541068, 233613349710, 675981684148, 4166412530876, 12082238135283, 74601934076542
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OFFSET
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1,2
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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..0....0..1..1....0..0..1....0..0..0....0..0..0....0..0..0....0..1..0
..1..1..0....1..1..1....0..0..0....0..0..0....0..0..0....0..0..0....1..0..0
..1..1..1....1..1..1....0..0..0....1..0..0....1..0..0....1..0..1....0..0..0
..1..1..1....1..1..0....1..0..0....1..1..1....0..1..0....1..1..1....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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