Number of n X n arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..3 n X n array.

A218174

Number of n X n arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..3 n X n array.

Terms

    a(0) =4a(1) =28a(2) =2936a(3) =851332a(4) =1661620524

External references