1/81 the number of (n+1) X 5 0..2 arrays with no 2 X 2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor.
A183815
1/81 the number of (n+1) X 5 0..2 arrays with no 2 X 2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor.
Terms
- a(0) =512a(1) =65640a(2) =8231592a(3) =1042063656a(4) =131467169720
External references
- oeis: A183815