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A207057
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T(n,k)=Number of nXk 0..3 arrays avoiding the pattern z-1 z-1 z in any row or column
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7
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4, 16, 16, 61, 256, 61, 232, 3721, 3721, 232, 882, 53824, 197144, 53824, 882, 3353, 777924, 10372376, 10372376, 777924, 3353, 12747, 11242609, 545111339, 1980856064, 545111339, 11242609, 12747, 48460, 162486009, 28644905324
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OFFSET
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1,1
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COMMENTS
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Table starts
.....4.........16.............61.................232.....................882
....16........256...........3721...............53824..................777924
....61.......3721.........197144............10372376...............545111339
...232......53824.......10372376..........1980856064............377752048996
...882.....777924......545111339........377752048996.........261322412243484
..3353...11242609....28644905324......72028285835462......180748784643467362
.12747..162486009..1505319709390...13734678041147631...125023718189363499045
.48460.2348371600.79106529010228.2619005062646929790.86479305857597620069785
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LINKS
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EXAMPLE
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Some solutions for n=4 k=3
..3..1..1....2..1..2....0..0..3....1..3..3....2..2..1....3..2..2....1..0..2
..1..3..3....3..0..1....0..1..1....1..1..3....0..0..3....0..2..3....3..2..1
..3..1..3....2..0..0....2..0..2....0..1..0....0..0..2....3..0..1....1..0..3
..1..3..3....1..3..0....2..1..0....0..1..0....2..2..0....2..3..2....3..0..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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