Number of (n+1)X(n+1) 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock the same.

A205362

Number of (n+1)X(n+1) 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock the same.

Terms

    a(0) =256a(1) =31848a(2) =17552984a(3) =50678667832

External references