Number of n X n binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally.
A188740
Number of n X n binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally.
Terms
- a(0) =2a(1) =16a(2) =292a(3) =17286a(4) =3283906a(5) =1536573216
External references
- oeis: A188740