1/256 the number of (n+1)X4 0..3 arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor.
A183822
1/256 the number of (n+1)X4 0..3 arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor.
Terms
- a(0) =225a(1) =43947a(2) =8538066a(3) =1661285961a(4) =323115202755
External references
- oeis: A183822