Number of (n+1)X(3+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.
A235751
Number of (n+1)X(3+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.
Terms
- a(0) =26852a(1) =2349533a(2) =214506660a(3) =15727633969
External references
- oeis: A235751