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A206999
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Number of nX7 0..1 arrays avoiding 0 1 0 horizontally and 0 1 1 vertically
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1
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65, 4225, 105936, 2346621, 41429335, 683241763, 10432265840, 154004233160, 2204564726744, 31044446020755, 431344655622502, 5945601513772082, 81452204001027552, 1111514446777014206, 15124130993994618127
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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=4
..0..0..0..1..1..0..1....1..0..1..1..0..0..0....1..0..1..1..1..0..0
..1..0..0..1..1..1..1....1..1..1..0..0..0..0....0..1..1..1..1..0..0
..0..0..1..1..1..0..0....1..0..0..0..1..1..1....0..0..1..1..0..1..1
..1..1..0..1..1..1..1....0..0..1..1..0..0..0....0..0..1..1..1..0..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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