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A223147
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Number of nX5 0..2 arrays with no more than floor(nX5/2) elements equal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order
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1
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24, 990, 23376, 1753639, 35160014, 2829178640, 57855419616, 4836446707793, 101866996330559, 8702834137106991, 187759794261834710, 16250488781543733341, 356862837288707460939, 31136852536742130487995
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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..1..1..1..0....0..1..0..1..0....0..1..0..2..1....0..1..2..0..0
..2..2..0..2..1....0..2..1..2..1....2..0..0..2..2....2..0..1..2..0
..1..0..1..0..2....1..0..1..1..2....0..2..1..0..1....1..0..0..0..1
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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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