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

A232679

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

Terms

    a(0) =562a(1) =13266a(2) =252071a(3) =4171291a(4) =60818628a(5) =797893589a(6) =9620349150a(7) =107866360242

External references