Number of (n+1)X3 0..2 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences.

A209954

Number of (n+1)X3 0..2 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences.

Terms

    a(0) =567a(1) =12161a(2) =260201a(3) =5569307a(4) =119198607a(5) =2551206049a(6) =54603359537

External references