Number of (n+1)X(3+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock equal.
A237534
Number of (n+1)X(3+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock equal.
Terms
- a(0) =11602a(1) =330210a(2) =9080246a(3) =266120870a(4) =7718716424a(5) =228011672782
External references
- oeis: A237534