Number of (n+1)X(2+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal.

A233911

Number of (n+1)X(2+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal.

Terms

    a(0) =640a(1) =3944a(2) =22632a(3) =138132a(4) =807964a(5) =4908404a(6) =28936484a(7) =175407492a(8) =1039210048a(9) =6291984872a(10) =37411050288a(11) =226333090864

External references