Number of (n+1) X (n+1) 0..5 arrays with every 2 X 2 subblock commuting with each of its horizontal and vertical 2 X 2 subblock neighbors.

A186485

Number of (n+1) X (n+1) 0..5 arrays with every 2 X 2 subblock commuting with each of its horizontal and vertical 2 X 2 subblock neighbors.

Terms

    a(0) =1296a(1) =1638a(2) =49225a(3) =187120a(4) =2297416a(5) =7285701a(6) =85779021a(7) =302363961a(8) =3344266701a(9) =12548833941a(10) =129972246981a(11) =515938724421

External references