A207762 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 0 1 vertically.
2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 13, 81, 82, 81, 14, 19, 169, 221, 193, 196, 21, 28, 361, 493, 663, 488, 441, 31, 41, 784, 1095, 1664, 2245, 1087, 961, 46, 60, 1681, 2654, 4018, 6552, 6459, 2305, 2116, 68, 88, 3600, 6203, 11509, 16920, 21547, 17563, 4932, 4624, 100
Offset: 1
Examples
Some solutions for n=4 k=3 ..0..0..1....1..1..1....0..1..1....1..1..1....1..0..0....1..1..1....1..0..0 ..0..1..1....1..1..0....0..0..1....1..0..0....1..0..0....1..0..0....1..1..0 ..0..0..1....1..0..0....1..0..0....1..0..0....1..1..0....1..0..0....1..0..0 ..0..0..1....1..0..0....0..1..0....0..1..1....0..0..1....1..0..0....1..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..684
Comments