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

A206745

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

Terms

    a(0) =256a(1) =1888a(2) =15680a(3) =139744a(4) =1289472a(5) =12105120a(6) =114566336a(7) =1088409696a(8) =10358308480a(9) =98658758944a(10) =940033716800

External references