Number of (n+1)X(5+1) 0..3 arrays with the upper median equal to the lower median in every 2X2 subblock.
A235854
Number of (n+1)X(5+1) 0..3 arrays with the upper median equal to the lower median in every 2X2 subblock.
Terms
- a(0) =203804a(1) =21301696a(2) =1811192156a(3) =181155460364
External references
- oeis: A235854