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A180990
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Number of (n+1)xn binary matrices with rows and then columns in strictly increasing order as binary numbers
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0
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0, 0, 1, 19, 721, 67264, 16731459, 11654912023, 23649647075402, 144714747782240313, 2752761136943759699903, 167080696204654407079545988, 33078287865123858428157169233610
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OFFSET
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1,4
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COMMENTS
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LINKS
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EXAMPLE
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All solutions for 4X3
..0..1..1
..1..0..0
..1..0..1
..1..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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