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

A232789

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

Terms

    a(0) =7a(1) =45a(2) =650a(3) =24520a(4) =2625117a(5) =836488618a(6) =738302560541

External references