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

A232781

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

Terms

    a(0) =110a(1) =1140a(2) =9315a(3) =63536a(4) =371914a(5) =1940081a(6) =9154020a(7) =39669535a(8) =159795143a(9) =604317755a(10) =2164002652a(11) =7386075428a(12) =24162161452a(13) =76101692844a(14) =231700113837

External references