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

A232793

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

Terms

    a(0) =41a(1) =336a(2) =2942a(3) =24520a(4) =183010a(5) =1202234a(6) =6552283a(7) =30323734a(8) =119567288a(9) =429359835a(10) =1473949816a(11) =4955858508a(12) =16292947065a(13) =52136731185a(14) =161006763155a(15) =475381815548

External references