Number of n X n 0..2 arrays with each element equal to either the sum mod 3 of its horizontal and vertical neighbors or the sum mod 3 of its diagonal and antidiagonal neighbors.
A183518
Number of n X n 0..2 arrays with each element equal to either the sum mod 3 of its horizontal and vertical neighbors or the sum mod 3 of its diagonal and antidiagonal neighbors.
Terms
- a(0) =1a(1) =9a(2) =101a(3) =3507a(4) =371691a(5) =89738569
External references
- oeis: A183518