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A222455
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Number of nX7 0..1 arrays with exactly floor(nX7/2) 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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5, 64, 467, 8483, 84558, 1752892, 17977932, 398308251, 4297235804, 98149697258, 1083889273467, 25078137790680, 280275184599151, 6532746120961558, 73535195746145607, 1722280102006903545, 19480494007933810209
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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..1..1..1....0..0..0..1..1..1..0....0..0..0..0..0..0..0
..1..0..1..1..1..1..1....0..0..0..1..0..0..1....0..0..0..0..0..0..0
..0..0..1..1..1..1..1....0..0..0..0..0..0..0....1..0..0..1..0..0..0
..1..1..1..1..1..1..1....0..0..0..0..0..0..0....0..1..0..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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