Number of (n+1)X(3+1) 0..2 arrays x(i,j) with row sums sum{j^4*x(i,j), j=1..3+1} nondecreasing, and column sums sum{i^4*x(i,j), i=1..n+1} nondecreasing.

A232851

Number of (n+1)X(3+1) 0..2 arrays x(i,j) with row sums sum{j^4*x(i,j), j=1..3+1} nondecreasing, and column sums sum{i^4*x(i,j), i=1..n+1} nondecreasing.

Terms

    a(0) =356a(1) =10020a(2) =250841a(3) =5049004a(4) =81165760a(5) =1100553095a(6) =12972830143a(7) =135388726387

External references