Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 0 vertically.
A207955
Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 0 vertically.
Terms
- a(0) =2a(1) =16a(2) =102a(3) =989a(4) =15839a(5) =454223a(6) =22743106a(7) =1965912435a(8) =292568573966
External references
- oeis: A207955