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A189189
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Number of n X n binary arrays without the pattern 0 0 1 vertically or antidiagonally
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1
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2, 16, 316, 15326, 1579664, 367115337, 184841938568, 209311662962608, 525679279319545840, 2979655033608039508606, 37875187935027408625277140, 1087648851912447148168100296827, 70353152136567154798416885107484140
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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 3X3
..1..1..1....0..0..0....1..1..0....0..0..1....1..0..1....1..1..1....0..1..0
..0..1..1....1..1..0....1..1..1....1..1..0....0..1..0....0..0..0....1..0..0
..1..0..0....1..0..0....1..1..1....1..1..1....1..1..0....1..0..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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