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A222451
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Number of nX3 0..1 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order
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1
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0, 2, 2, 17, 27, 194, 467, 2375, 6320, 31706, 84949, 426134, 1133626, 5776492, 15176513, 78547862, 204559282, 1071259196, 2775207035, 14655072445, 37875592694, 201114091282, 519500141148, 2768445005172, 7154712147158
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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..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..1..1....0..0..1....0..0..0....1..1..1....0..0..0....0..0..0
..0..0..0....1..1..1....0..1..1....1..1..1....1..1..1....0..0..0....0..0..1
..1..1..1....1..1..1....1..1..1....1..1..1....1..1..1....1..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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