Number of (n+1)X(3+1) 0..2 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.
A235754
Number of (n+1)X(3+1) 0..2 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.
Terms
- a(0) =2996a(1) =88732a(2) =2721271a(3) =68186440a(4) =1669079300a(5) =36221011849a(6) =753688651636
External references
- oeis: A235754