Half the number of nX4 0..3 arrays with each element equal to either the maximum or the minimum of its horizontal and vertical neighbors.
A183579
Half the number of nX4 0..3 arrays with each element equal to either the maximum or the minimum of its horizontal and vertical neighbors.
Terms
- a(0) =8a(1) =407a(2) =9667a(3) =240358a(4) =5987795a(5) =149355515a(6) =3724940988a(7) =92915045150
External references
- oeis: A183579