Number of (n+1)X3 0..3 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
A186555
Number of (n+1)X3 0..3 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
Terms
- a(0) =3891a(1) =227890a(2) =13360840a(3) =783375343a(4) =45931015744
External references
- oeis: A186555