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A229365
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Number of n X n 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally
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1
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3, 38, 1610, 222990, 104382552, 162794962814, 851668326534130, 14897378230939391994, 872764112558460116016396, 171094770747292212524499798502, 112292092887713869652391305250607824
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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
..1..2..2....2..2..2....1..0..0....0..2..0....0..1..2....0..1..0....0..1..0
..1..0..0....0..0..1....2..1..2....0..1..0....1..0..1....0..2..1....0..1..0
..1..2..1....1..0..2....1..2..1....2..2..0....1..0..0....2..0..1....0..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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