Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 0 1 1 vertically.
A207902
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 0 1 1 vertically.
Terms
- a(0) =2a(1) =16a(2) =102a(3) =841a(4) =13865a(5) =314721a(6) =6835345a(7) =167806116a(8) =7410251162a(9) =472676875225
External references
- oeis: A207902