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A233635
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T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6
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9
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100, 716, 716, 4974, 10544, 4974, 34996, 150054, 150054, 34996, 245244, 2172148, 4350820, 2172148, 245244, 1721166, 31361288, 130732438, 130732438, 31361288, 1721166, 12073496, 453376730, 3912088926, 8271515976, 3912088926, 453376730
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OFFSET
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1,1
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COMMENTS
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Table starts
......100.........716............4974..............34996................245244
......716.......10544..........150054............2172148..............31361288
.....4974......150054.........4350820..........130732438............3912088926
....34996.....2172148.......130732438.........8271515976..........523893377896
...245244....31361288......3912088926.......523893377896........70397790661236
..1721166...453376730....117571581104.....33375589770090......9557844830798770
.12073496..6552999568...3530630987208...2127910272105792...1299207938978711788
.84707304.94726474064.106103463522318.135782900234876140.176985122261187048412
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LINKS
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FORMULA
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Empirical for column k:
k=1: a(n) = 5*a(n-1) +19*a(n-2) -27*a(n-3) -55*a(n-4) +37*a(n-5)
k=2: [order 19]
k=3: [order 63]
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EXAMPLE
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Some solutions for n=2 k=4
..0..3..1..3..3....0..0..0..3..0....0..3..0..1..3....3..3..3..3..3
..0..3..0..1..0....0..3..0..3..1....0..3..2..0..3....0..3..0..0..0
..0..1..0..3..0....0..3..1..1..2....0..1..3..3..3....0..1..0..3..1
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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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