Number of (4+1)X(n+1) 0..3 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.
A235668
Number of (4+1)X(n+1) 0..3 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.
Terms
- a(0) =344668a(1) =97225212a(2) =25779181084
External references
- oeis: A235668