Number of (n+1)X(3+1) 0..2 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.
A235434
Number of (n+1)X(3+1) 0..2 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.
Terms
- a(0) =3987a(1) =169041a(2) =6802225a(3) =253925273a(4) =9047860107a(5) =309625276947
External references
- oeis: A235434