Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 0 0 vertically.
A207494
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 0 0 vertically.
Terms
- a(0) =2a(1) =16a(2) =102a(3) =1004a(4) =14253a(5) =237576a(6) =5715255a(7) =163471950a(8) =6200122170a(9) =294261603282
External references
- oeis: A207494