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

A266044

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

Terms

    a(0) =8a(1) =104a(2) =2408a(3) =74416a(4) =2603736a(5) =97230000a(6) =3787995368a(7) =152165487408

External references