Number of (n+1)X(4+1) 0..3 arrays with the upper median of every 2X2 subblock equal.
A237072
Number of (n+1)X(4+1) 0..3 arrays with the upper median of every 2X2 subblock equal.
Terms
- a(0) =128988a(1) =23830240a(2) =3263989086a(3) =540145357880
External references
- oeis: A237072