Number of (n+1)X(1+1) 0..3 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.
A235426
Number of (n+1)X(1+1) 0..3 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.
Terms
- a(0) =256a(1) =3038a(2) =33610a(3) =344668a(4) =3402366a(5) =32542312a(6) =304784986a(7) =2807381170a(8) =25538118636a(9) =230002990420
External references
- oeis: A235426