A208007 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 1 1 and 1 1 0 vertically.
2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 14, 81, 92, 81, 14, 22, 196, 221, 221, 196, 22, 35, 484, 618, 536, 618, 484, 35, 56, 1225, 1690, 1711, 1711, 1690, 1225, 56, 90, 3136, 4861, 4993, 7016, 4993, 4861, 3136, 90, 145, 8100, 13900, 16742, 24512, 24512, 16742, 13900
Offset: 1
Examples
Some solutions for n=4 k=3 ..0..1..0....0..0..0....0..1..0....1..0..1....1..0..1....0..0..0....0..1..0 ..0..0..0....0..1..1....1..1..0....0..0..0....0..0..0....0..1..1....0..1..0 ..0..1..1....0..0..0....0..1..0....1..1..1....0..1..1....0..0..0....0..1..1 ..0..0..0....0..1..0....1..1..1....0..0..0....0..0..0....1..0..1....1..1..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..479
Comments