Number of (n+1)X(2+1) 0..3 arrays x(i,j) with row sums sum{j^2*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing.

A232707

Number of (n+1)X(2+1) 0..3 arrays x(i,j) with row sums sum{j^2*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing.

Terms

    a(0) =542a(1) =13471a(2) =254980a(3) =3880262a(4) =49992862a(5) =560453801a(6) =5577852948a(7) =50123631166a(8) =412062537867

External references