Number of (n+1)X(4+1) 0..3 arrays with the upper median equal to the lower median in every 2X2 subblock.
A235853
Number of (n+1)X(4+1) 0..3 arrays with the upper median equal to the lower median in every 2X2 subblock.
Terms
- a(0) =30624a(1) =1629216a(2) =73075844a(3) =3725170008a(4) =181155460364
External references
- oeis: A235853