A207960 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 0 vertically.
2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 13, 81, 102, 81, 14, 19, 169, 281, 297, 196, 22, 28, 361, 699, 989, 932, 484, 35, 41, 784, 1799, 3080, 3923, 2974, 1225, 56, 60, 1681, 4706, 9994, 15839, 15921, 9723, 3136, 90, 88, 3600, 12161, 32358, 66089, 84013, 67007, 32164
Offset: 1
Examples
Some solutions for n=4 k=3 ..0..1..1....1..0..0....1..1..0....0..1..1....1..1..0....1..0..0....0..0..1 ..0..1..1....0..1..1....0..0..1....1..1..0....0..0..1....0..1..0....0..0..1 ..0..1..1....1..0..0....1..1..1....1..1..1....1..1..1....1..0..0....0..0..1 ..0..0..1....0..1..1....1..0..0....1..0..0....0..1..1....1..1..0....0..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..576
Comments