Number of nX4 0..3 arrays with no occurrence of three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..3 introduced in row major order.

A205157

Number of nX4 0..3 arrays with no occurrence of three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..3 introduced in row major order.

Terms

    a(0) =12a(1) =2191a(2) =332285a(3) =54314298a(4) =8797534495

External references