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A229378
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Number of nX6 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 diagonally or antidiagonally
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1
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448, 8818, 346598, 11441370, 407900408, 13999334726, 492938029980, 17047266083040, 597865838000740, 20740608165866648, 725812479117899160, 25224055021486126018, 881505120022046301944, 30668872473833482523122
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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..0..1..2..1..0....0..0..2..0..2..2....0..0..1..0..0..0....0..1..0..2..2..2
..1..2..2..1..2..1....2..2..1..0..1..0....2..1..2..1..2..1....1..2..2..1..0..1
..2..0..0..2..1..2....0..1..2..2..2..0....0..2..1..2..0..0....1..0..0..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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