A203445 Number of (n+1)X(n+1) 0..1 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) such that rows of b(i,j) and columns of c(i,j) are lexicographically nondecreasing

8, 34, 321, 7481, 554620, 125140148, 91479447926, 216607480473481, 1675743278510590472, 42706348945332757503203