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A180984
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T(n,k)=number of nXk binary matrices with rows and columns in lexicographically strictly increasing order
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1
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2, 1, 1, 0, 3, 0, 0, 3, 3, 0, 0, 1, 15, 1, 0, 0, 0, 31, 31, 0, 0, 0, 0, 34, 234, 34, 0, 0, 0, 0, 21, 925, 925, 21, 0, 0, 0, 0, 7, 2366, 10706, 2366, 7, 0, 0, 0, 0, 1, 4305, 77079, 77079, 4305, 1, 0, 0, 0, 0, 0, 5845, 400672, 1411450, 400672, 5845, 0, 0, 0, 0, 0, 0, 6059, 1621242
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OFFSET
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1,1
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COMMENTS
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Table starts
.2.1..0....0........0..........0.............0...............0
.1.3..3....1........0..........0.............0...............0
.0.3.15...31.......34.........21.............7...............1
.0.1.31..234......925.......2366..........4305............5845
.0.0.34..925....10706......77079........400672.........1621242
.0.0.21.2366....77079....1411450......18068175.......179023089
.0.0..7.4305...400672...18068175.....539124281.....12176364503
.0.0..1.5845..1621242..179023089...12176364503....607445721710
.0.0..0.6059..5329869.1451615923..223274567811..24245093840300
.0.0..0.4830.14617117.9963573356.3463014573021.813139746187214
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LINKS
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EXAMPLE
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All solutions for 3X3
..0..0..0....0..0..0....0..0..0....0..0..1....0..0..1....0..0..1....0..0..1
..0..0..1....0..0..1....0..1..1....0..1..0....0..1..0....0..1..0....0..1..0
..0..1..0....0..1..1....1..0..1....0..1..1....1..0..0....1..1..0....1..0..1
...
..0..0..1....0..0..1....0..0..1....0..0..1....0..0..1....0..1..1....0..1..1
..0..1..0....0..1..1....0..1..1....0..1..1....0..1..1....1..0..0....1..0..1
..1..1..1....1..0..0....1..1..0....1..0..1....1..1..1....1..0..1....1..1..0
...
..0..1..1
..1..0..1
..1..1..1
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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