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A183971
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T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one
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10
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81, 459, 459, 2601, 4401, 2601, 15759, 43163, 43163, 15759, 95481, 459821, 746017, 459821, 95481, 586791, 4911675, 14219749, 14219749, 4911675, 586791, 3606201, 53575889, 272110811, 492135291, 272110811, 53575889, 3606201, 22235391
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OFFSET
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1,1
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COMMENTS
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Table starts
........81.........459..........2601..........15759..........95481
.......459........4401.........43163.........459821........4911675
......2601.......43163........746017.......14219749......272110811
.....15759......459821......14219749......492135291....17133244697
.....95481.....4911675.....272110811....17133244697..1088246684231
....586791....53575889....5344196941...615149254565.71600778588343
...3606201...584520435..105022040225.22112885527475
..22235391..6415409881.2080498882227
.137100681.70404186587
.845893287
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LINKS
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EXAMPLE
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Some solutions for 3X3
..1..1..2....1..1..1....2..1..1....1..1..1....1..2..0....1..2..1....1..0..0
..2..2..0....0..0..0....1..2..2....0..1..0....0..1..1....1..1..1....2..2..2
..0..2..2....1..1..0....2..0..2....1..1..1....2..0..1....2..1..1....2..0..1
...
...6..5.......2..2.......6..6.......3..3.......4..4.......5..5.......5..4...
...6..6.......2..1.......5..6.......3..3.......3..3.......5..4.......6..5...
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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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