Number of (n+1) X 7 0..3 arrays with every 2 X 3 or 3 X 2 subblock having exactly two counterclockwise and two clockwise edge increases.

A206116

Number of (n+1) X 7 0..3 arrays with every 2 X 3 or 3 X 2 subblock having exactly two counterclockwise and two clockwise edge increases.

Terms

    a(0) =973388a(1) =3048096a(2) =10792800a(3) =157206240a(4) =1990281312a(5) =24408220320a(6) =373319837280

External references