T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with the (lower) median of each row and column nondecreasing.
A237625
T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with the (lower) median of each row and column nondecreasing.
Terms
- a(0) =33040a(1) =1064444a(2) =1064444a(3) =33329056a(4) =174401223a(5) =33329056a(6) =939401016a(7) =21067188520a(8) =21067188520a(9) =939401016a(10) =26658031968a(14) =26658031968a(15) =703602018050
External references
- oeis: A237625