Number of 4 X n arrays containing n copies of 0..4-1 with no equal horizontal neighbors and new values introduced sequentially from 0.

A264947

Number of 4 X n arrays containing n copies of 0..4-1 with no equal horizontal neighbors and new values introduced sequentially from 0.

Terms

    a(0) =1a(1) =60a(2) =3201a(3) =184740a(4) =11375145a(5) =730983420a(6) =48402531561

External references