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

A233046

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

Terms

    a(0) =29a(1) =117a(2) =406a(3) =1236a(4) =3486a(5) =9301a(6) =23663a(7) =58115a(8) =138690a(9) =323840a(10) =742851a(11) =1679010a(12) =3749771a(13) =8289248a(14) =18168895a(15) =39536497a(16) =85496710a(17) =183891668a(18) =393668931a(19) =839245009a(20) =1782590609a(21) =3773864595a(22) =7965997430a(23) =16770228087a(24) =35219988730

External references