Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 1 0 and 1 0 1 vertically.
A207945
Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 1 0 and 1 0 1 vertically.
Terms
- a(0) =2a(1) =16a(2) =102a(3) =1369a(4) =18172a(5) =362404a(6) =7513176a(7) =208947025a(8) =6018764552a(9) =220642515076
External references
- oeis: A207945