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

A206407

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

Terms

    a(0) =81a(1) =423a(2) =2457a(3) =15087a(4) =94761a(5) =600519a(6) =3818649a(7) =24314127a(8) =154889673a(9) =986887623a(10) =6288452889a(11) =40071132591a(12) =255342940521

External references