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A222792
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Number of nX6 0..3 arrays with exactly floor(nX6/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order
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1
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8, 302, 14292, 1026076, 88097352, 8113737592, 762956665320, 72357582862167, 6893999224041770, 659082936314507965, 63190334538875921662, 6073765296018957800192, 585126207186647155322334
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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=3
..0..0..0..0..0..0....0..0..0..1..2..2....0..0..1..1..1..2....0..0..0..0..1..2
..0..0..0..1..0..2....0..0..0..2..2..2....2..1..1..1..1..1....0..0..0..0..1..3
..0..0..0..0..2..1....0..0..0..2..3..3....1..1..1..1..1..3....0..0..0..2..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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