Number of 0..6 colorings of an nX4 array circular in the 4 direction with new values 0..6 introduced in row major order.

A214182

Number of 0..6 colorings of an nX4 array circular in the 4 direction with new values 0..6 introduced in row major order.

Terms

    a(0) =4a(1) =353a(2) =147943a(3) =96673866a(4) =68272896836

External references