Number of (n+1) X (n+1) 0..3 arrays with nondecreasing sum of every two consecutive values in every row and column.
A251968
Number of (n+1) X (n+1) 0..3 arrays with nondecreasing sum of every two consecutive values in every row and column.
Terms
- a(0) =256a(1) =20000a(2) =6250000a(3) =1500625000a(4) =922368160000
External references
- oeis: A251968