Number of (n+1)X(3+1) 0..3 arrays with the upper median of every 2X2 subblock equal.
A237071
Number of (n+1)X(3+1) 0..3 arrays with the upper median of every 2X2 subblock equal.
Terms
- a(0) =15882a(1) =1046822a(2) =53940782a(3) =3263989086a(4) =195683299844
External references
- oeis: A237071