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A222985
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Number of n X 7 0..2 arrays with no more than floor(n*7/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
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1
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17, 1172, 36987, 4405097, 183010307, 26345532486, 1202086792105, 180821359299832, 8463651301168857, 1290846776123480411, 61103325028133094620, 9391211217321900719984, 447723422606405342204055
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OFFSET
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1,1
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LINKS
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EXAMPLE
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Some solutions for n=3:
..0..1..0..1..1..1..1....0..0..0..0..0..1..1....0..1..0..2..2..2..2
..1..1..0..1..1..1..1....0..0..0..0..0..1..1....2..0..2..2..2..2..2
..1..1..2..1..1..1..1....0..0..0..1..0..0..1....2..1..2..2..2..2..2
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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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