Number of 0..3 colorings of a 4X(n+1) array circular in the n+1 direction with new values 0..3 introduced in row major order.

A214115

Number of 0..3 colorings of a 4X(n+1) array circular in the n+1 direction with new values 0..3 introduced in row major order.

Terms

    a(0) =172a(1) =1331a(2) =110985a(3) =3008980a(4) =136579852a(5) =4797577911a(6) =191154162535

External references