Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 0 vertically.
A208159
Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 0 vertically.
Terms
- a(0) =2a(1) =16a(2) =102a(3) =981a(4) =14446a(5) =297702a(6) =9072707a(7) =424153857a(8) =29316311612
External references
- oeis: A208159