Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any horizontal, vertical, diagonal or antidiagonal neighbor equal to 4-1.

A266209

Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any horizontal, vertical, diagonal or antidiagonal neighbor equal to 4-1.

Terms

    a(0) =8a(1) =8a(2) =8a(3) =16a(4) =312a(5) =14936a(6) =310552a(7) =8027264a(8) =153019144a(9) =3430340488a(10) =64644807000

External references