Number of (n+1)X6 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one.

A206082

Number of (n+1)X6 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one.

Terms

    a(0) =426596a(1) =35195768a(2) =2359157212a(3) =153755370824

External references