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A223471
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Number of nX5 0..2 arrays with no more than floor(nX5/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..2 order
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1
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24, 140, 883, 6708, 13849, 230069, 346368, 8462114, 12237077, 329585237, 481076267, 13224791364, 19515295502, 540334751067, 803801865688, 22357742428607, 33455380543489, 933896703148198, 1403651597676943
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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..2..1..2....0..1..0..1..2....0..1..0..1..0....0..1..2..0..2
..2..0..0..0..0....2..2..2..2..0....2..1..1..1..2....2..0..0..1..0
..1..0..0..0..2....1..0..1..2..1....1..1..2..1..1....1..0..2..0..2
..0..2..1..0..1....2..0..2..2..0....2..0..1..0..2....2..0..0..1..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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