Number of (3+1)X(n+1) 0..3 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors.

A238932

Number of (3+1)X(n+1) 0..3 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors.

Terms

    a(0) =144a(1) =13456a(2) =611524a(3) =25080064a(4) =1176627204a(5) =56843142724

External references