Number of (n+1)X(n+1) 0..3 arrays with the upper median of every 2X2 subblock equal.
A237068
Number of (n+1)X(n+1) 0..3 arrays with the upper median of every 2X2 subblock equal.
Terms
- a(0) =256a(1) =51000a(2) =53940782a(3) =540145357880
External references
- oeis: A237068