Number of (n+1) X (n+1) 0..3 arrays with the minimum plus the upper median equal to the lower median plus the maximum in every 2 X 2 subblock.
A235885
Number of (n+1) X (n+1) 0..3 arrays with the minimum plus the upper median equal to the lower median plus the maximum in every 2 X 2 subblock.
Terms
- a(0) =40a(1) =232a(2) =1096a(3) =4744a(4) =19720a(5) =80392a(6) =324616a(7) =1304584a(8) =5230600a(9) =20946952a(10) =83836936a(11) =335446024
External references
- oeis: A235885