Number of (n+1)X7 0..3 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.

A203739

Number of (n+1)X7 0..3 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) =111916a(1) =1868452a(2) =24571387a(3) =240425612a(4) =1908258519a(5) =12852015708a(6) =75830205850a(7) =399483991424

External references