Number of nX3 arrays containing 3 copies of 0..n-1 with no element plus any horizontal or vertical neighbor equal to n-1.

A265661

Number of nX3 arrays containing 3 copies of 0..n-1 with no element plus any horizontal or vertical neighbor equal to n-1.

Terms

    a(0) =0a(1) =0a(2) =4a(3) =1608a(4) =951040a(5) =586218384

External references