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A207000
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T(n,k)=Number of nXk 0..1 arrays avoiding 0 1 0 horizontally and 0 1 1 vertically
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10
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2, 4, 4, 7, 16, 7, 12, 49, 49, 12, 21, 144, 230, 144, 20, 37, 441, 1011, 1020, 400, 33, 65, 1369, 4705, 6612, 4120, 1089, 54, 114, 4225, 22412, 45932, 38144, 16109, 2916, 88, 200, 12996, 105936, 329734, 382349, 211471, 61003, 7744, 143, 351, 40000, 497727
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OFFSET
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1,1
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COMMENTS
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Table starts
..2....4......7......12........21.........37...........65...........114
..4...16.....49.....144.......441.......1369.........4225.........12996
..7...49....230....1011......4705......22412.......105936........497727
.12..144...1020....6612.....45932.....329734......2346621......16555996
.20..400...4120...38144....382349....3997768.....41429335.....424457832
.33.1089..16109..211471...3032756...45723467....683241763...10070110597
.54.2916..61003.1124120..22816988..490003769..10432265840..218637649146
.88.7744.227197.5856490.167677230.5103567157.154004233160.4567604720632
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LINKS
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EXAMPLE
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Some solutions for n=4 k=3
..0..0..1....1..1..0....0..0..1....0..0..1....1..1..1....1..0..0....0..1..1
..0..0..0....1..0..1....0..1..1....0..0..1....1..1..1....0..0..1....1..0..0
..1..0..1....1..0..0....1..0..0....0..0..1....0..1..1....1..0..0....0..0..1
..0..0..0....0..1..1....0..0..0....1..1..1....0..1..1....0..1..1....1..1..0
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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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