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A210413
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T(n,k) = Number of (n+1) X (k+1) 0..3 arrays with every 2 X 2 subblock having three or four distinct values, and new values 0..3 introduced in row major order.
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9
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7, 78, 78, 864, 2520, 864, 9576, 80496, 80496, 9576, 106128, 2574592, 7380816, 2574592, 106128, 1176192, 82334080, 677993552, 677993552, 82334080, 1176192, 13035456, 2633043200, 62266883792, 178971208720, 62266883792, 2633043200
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OFFSET
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1,1
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COMMENTS
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Table starts
.........7............78...............864..................9576
........78..........2520.............80496...............2574592
.......864.........80496...........7380816.............677993552
......9576.......2574592.........677993552..........178971208720
....106128......82334080.......62266883792........47230418649056
...1176192....2633043200.....5718722907600.....12464482425454304
..13035456...84204544256...525218223843536...3289463792785895520
.144468864.2692856218368.48237041019306960.868112796901730209328
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LINKS
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EXAMPLE
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Some solutions for n=4, k=3
..0..0..0..1....0..0..0..0....0..1..2..1....0..0..1..1....0..1..0..2
..1..2..3..0....1..2..3..2....2..3..0..1....1..2..2..3....2..1..2..3
..3..1..1..3....3..1..1..2....2..0..1..2....3..0..3..0....2..0..1..3
..2..2..3..0....1..2..3..1....3..0..2..0....2..0..1..2....1..3..1..0
..3..0..3..1....3..2..0..1....3..1..2..1....3..2..0..1....3..0..3..2
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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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