Number of (n+1)X7 0..4 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.
A203868
Number of (n+1)X7 0..4 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.
Terms
- a(0) =1322098a(1) =59962757a(2) =1959924899a(3) =43601076951a(4) =721851243868
External references
- oeis: A203868