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A234208
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T(n,k)=Number of (n+1)X(k+1) 0..5 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 15
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8
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104, 440, 440, 1792, 1732, 1792, 7584, 6644, 6644, 7584, 31552, 28016, 24480, 28016, 31552, 133984, 115680, 104276, 104276, 115680, 133984, 560768, 509536, 429552, 476804, 429552, 509536, 560768, 2386048, 2169836, 1961124, 2064028, 2064028
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OFFSET
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1,1
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COMMENTS
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Table starts
......104.......440......1792.......7584.......31552......133984......560768
......440......1732......6644......28016......115680......509536.....2169836
.....1792......6644.....24480.....104276......429552.....1961124.....8457288
.....7584.....28016....104276.....476804.....2064028....10399724....47733004
....31552....115680....429552....2064028.....9242640....49998832...240124200
...133984....509536...1961124...10399724....49998832...306674836..1604387244
...560768...2169836...8457288...47733004...240124200..1604387244..8897304552
..2386048...9814536..40227192..254130448..1384025392.10638242184.64901610764
.10017536..42498000.177596408.1198170996..6844958752.57639791844
.42680192.195663360.869944940.6642355444.41343086964
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LINKS
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FORMULA
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Empirical for column k:
k=1: a(n) = 36*a(n-2) -396*a(n-4) +1392*a(n-6) -1664*a(n-8) +512*a(n-10)
k=2: [order 35]
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EXAMPLE
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Some solutions for n=3 k=4
..1..4..0..2..0....2..5..2..5..1....5..2..0..5..2....4..4..4..0..4
..0..4..5..2..5....1..5..1..5..2....0..2..5..5..1....1..0..5..4..1
..1..4..0..2..0....0..1..0..1..5....2..5..1..2..5....4..4..4..0..4
..0..4..5..2..5....5..1..5..1..4....0..2..5..5..1....0..1..0..3..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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