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

A206198

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

Terms

    a(0) =256a(1) =1060a(2) =5136a(3) =32920a(4) =118936a(5) =484704a(6) =3270240a(7) =11893600a(8) =48470400a(9) =327024000a(10) =1189360000a(11) =4847040000a(12) =32702400000a(13) =118936000000a(14) =484704000000

External references