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

A233356

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