Number of 7Xn 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.
A208878
Number of 7Xn 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.
Terms
- a(0) =715a(1) =5826959a(2) =40380275500
External references
- oeis: A208878