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

A233052

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

Terms

    a(0) =406a(1) =10029a(2) =205965a(3) =3663434a(4) =56606272a(5) =770098445a(6) =9363945606a(7) =103077058558

External references