Number of (n+1) X (n+1) 0..3 arrays with every 2 X 3 or 3 X 2 subblock having exactly two counterclockwise and two clockwise edge increases.

A206110

Number of (n+1) X (n+1) 0..3 arrays with every 2 X 3 or 3 X 2 subblock having exactly two counterclockwise and two clockwise edge increases.

Terms

    a(0) =256a(1) =5228a(2) =88596a(3) =5048352a(4) =190349280a(5) =24408220320

External references