Number of nX4 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than or equal to itself.
A266051
Number of nX4 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than or equal to itself.
Terms
- a(0) =7a(1) =58a(2) =302a(3) =4203a(4) =41919a(5) =406412a(6) =3922630a(7) =37847050a(8) =366073677a(9) =3539729256a(10) =34225117612a(11) =330920692737
External references
- oeis: A266051