Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.

A234157

Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.

Terms

    a(0) =5446a(1) =208530a(2) =7952532a(3) =305867942a(4) =11788446834a(5) =454899880956

External references