A208367 Number of nX6 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 0 vertically.
26, 676, 6186, 52821, 507682, 4503765, 38542393, 334331082, 2885233676, 24682262700, 211197852495, 1807060419576, 15434332682027, 131756292799275, 1124739131632930, 9598207952367000, 81889697535538942, 698632543565035989
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..1..1..0..1..0....1..1..0..1..0..0....0..1..1..1..1..1....1..1..1..0..1..0 ..0..1..0..1..0..0....0..1..0..1..0..0....0..1..0..1..1..0....0..1..0..1..1..1 ..0..1..1..1..1..0....0..1..0..1..0..0....0..1..0..1..1..0....0..1..1..1..0..1 ..0..1..1..1..1..0....0..1..0..1..0..0....0..1..0..1..1..0....0..1..1..0..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Comments