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A236254
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T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the upper median plus the lower median of every 2X2 subblock
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4
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256, 3208, 3208, 40120, 103364, 40120, 505708, 3307762, 3307762, 505708, 6373768, 107457398, 270817218, 107457398, 6373768, 80221804, 3483281438, 22624359354, 22624359354, 3483281438, 80221804, 1009767552, 112721511432, 1882056542771
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OFFSET
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1,1
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COMMENTS
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Table starts
.........256..........3208...........40120...........505708..........6373768
........3208........103364.........3307762........107457398.......3483281438
.......40120.......3307762.......270817218......22624359354....1882056542771
......505708.....107457398.....22624359354....4898826311444.1053449696159322
.....6373768....3483281438...1882056542771.1053449696159322
....80221804..112721511432.156211259916826
..1009767552.3649163332072
.12713539468
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LINKS
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FORMULA
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Empirical for column k:
k=1: [linear recurrence of order 48]
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EXAMPLE
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Some solutions for n=2 k=4
..0..1..3..0..2....0..1..1..0..0....0..1..1..0..0....0..1..2..0..0
..0..0..0..3..0....0..1..0..0..2....0..0..0..0..3....0..0..3..2..2
..0..0..1..3..0....0..0..1..3..2....0..2..2..3..3....0..0..1..1..3
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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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