Number of (n+1)X(3+1) 0..3 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.
A235428
Number of (n+1)X(3+1) 0..3 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.
Terms
- a(0) =33610a(1) =3874844a(2) =439379938a(3) =44578500538
External references
- oeis: A235428