Number of n X n 0..2 arrays avoiding the pattern z-1 z-1 z in any row or column.
A207195
Number of n X n 0..2 arrays avoiding the pattern z-1 z-1 z in any row or column.
Terms
- a(0) =3a(1) =81a(2) =12534a(3) =12539372a(4) =82169395789
External references
- oeis: A207195