Number of (n+1)X(4+1) 0..3 arrays with the maximum plus the upper median minus the lower median minus the minimum of every 2X2 subblock equal.
A237215
Number of (n+1)X(4+1) 0..3 arrays with the maximum plus the upper median minus the lower median minus the minimum of every 2X2 subblock equal.
Terms
- a(0) =22420a(1) =246916a(2) =2836058a(3) =35342748a(4) =450437732a(5) =5924283662a(6) =79100011764
External references
- oeis: A237215