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A222287
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Number of nX5 0..1 arrays with exactly floor(nX5/2) 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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4, 8, 83, 1125, 6582, 89852, 564838, 7879795, 50958999, 723447048, 4750196831, 67994171066, 451003258750, 6495868727212, 43379306929941, 627562261878355, 4211483429644946, 61133435798313074, 411800332378830207
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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..0..0..0....0..0..0..0..0....0..0..0..1..1....0..0..0..1..0
..0..1..0..0..0....1..0..0..0..0....1..0..1..1..1....0..0..0..0..0
..0..0..1..0..0....0..0..0..0..0....1..1..0..1..1....0..0..0..1..0
..0..0..0..0..0....1..0..0..1..0....1..1..1..1..1....0..0..1..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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