A184476 1/6 the number of (n+2)X10 0..2 arrays with each 3X3 subblock containing one of one value, four of another, and four of the last.
2147931, 2386807, 2652785, 2967411, 3727073, 4808779
Offset: 1
Keywords
Examples
Some solutions with a(1,1)=0 for 4X10 ..0..0..1..2..0..1..2..0..1..0....0..1..2..2..0..2..2..1..1..2 ..0..1..1..2..1..1..2..2..1..0....0..1..1..2..1..1..2..0..1..2 ..0..2..1..2..2..1..2..1..1..0....0..0..1..2..1..1..2..1..2..2 ..0..0..1..2..0..1..2..0..1..0....0..1..2..2..0..2..2..1..1..2
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