Number of (n+2)X3 0..3 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..3 introduced in row major order.
A204344
Number of (n+2)X3 0..3 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..3 introduced in row major order.
Terms
- a(0) =9672a(1) =540324a(2) =30378276a(3) =1708802980a(4) =96125591660
External references
- oeis: A204344