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A233594
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Number of (n+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards
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0
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15272, 20463326, 193816724926, 13036676136198570, 6217400227849213336029, 21035300720988185135892977193, 504952565127306851299571097075003261, 86012703850284916544804503539506332380421824
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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=1
..2..1..2....2..2..2....2..2..2....1..1..2....1..0..2....1..2..1....1..0..1
..1..1..0....1..2..1....2..0..1....2..2..2....0..2..2....1..1..2....2..2..1
..2..0..1....0..0..0....2..2..0....2..1..1....0..1..1....1..1..1....2..0..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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