Number of (n+1)X(3+1) 0..1 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.
A235674
Number of (n+1)X(3+1) 0..1 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.
Terms
- a(0) =208a(1) =2456a(2) =28584a(3) =330840a(4) =3824528a(5) =44196144a(6) =510685176a(7) =5900818062a(8) =68181837738a(9) =787815537064
External references
- oeis: A235674