Number of n X n 0..1 arrays avoiding 0 0 1 and 1 0 1 horizontally and 0 1 0 and 1 0 1 vertically.
A207248
Number of n X n 0..1 arrays avoiding 0 0 1 and 1 0 1 horizontally and 0 1 0 and 1 0 1 vertically.
Terms
- a(0) =2a(1) =16a(2) =102a(3) =940a(4) =9072a(5) =101036a(6) =1231650a(7) =16436824a(8) =237255370a(9) =3684061372a(10) =61152471648
External references
- oeis: A207248