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A207582
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T(n,k)=Number of nXk 0..3 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically
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7
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4, 16, 16, 61, 256, 61, 232, 3721, 3721, 232, 882, 53824, 196916, 53824, 882, 3353, 777924, 10346480, 10346480, 777924, 3353, 12747, 11242609, 542989615, 1970169608, 542989615, 11242609, 12747, 48460, 162486009, 28493353430
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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.........196916............10346480...............542989615
...232......53824.......10346480..........1970169608............374571613718
...882.....777924......542989615........374571613718.........257884387013510
..3353...11242609....28493353430......71203824562653......177514813568428241
.12747..162486009..1495251731248...13535979641561061...122196720716205612586
.48460.2348371600.78467042510200.2573229281243934565.84117644551085319449546
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LINKS
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EXAMPLE
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Some solutions for n=4 k=3
..0..0..3....1..0..0....0..0..3....2..2..2....1..0..2....1..3..2....0..1..1
..0..1..1....0..0..3....2..3..1....0..0..3....3..2..1....2..0..2....3..3..0
..2..0..2....1..2..1....1..2..0....0..0..1....1..0..3....2..1..1....3..1..1
..2..1..0....0..1..3....1..0..0....2..2..3....3..0..1....0..1..1....3..2..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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