1/4 the number of (n+1)X8 0..3 arrays with every 2X2 subblock having two or three distinct clockwise edge differences.

A210334

1/4 the number of (n+1)X8 0..3 arrays with every 2X2 subblock having two or three distinct clockwise edge differences.

Terms

    a(0) =48410727a(1) =249408131339

External references