Number of n X n integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than or equal to itself.
A266048
Number of n X n integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than or equal to itself.
Terms
- a(0) =1a(1) =7a(2) =20a(3) =4203a(4) =27764427a(5) =162959704686
External references
- oeis: A266048