Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4.

A197671

Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4.

Terms

    a(0) =25a(1) =1963a(2) =74812a(3) =3675345a(4) =178113620a(5) =8613257822a(6) =417293944115

External references