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

A232825

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

Terms

    a(0) =7a(1) =14a(2) =23a(3) =36a(4) =54a(5) =76a(6) =104a(7) =138a(8) =179a(9) =227a(10) =283a(11) =349a(12) =423a(13) =507a(14) =602a(15) =707a(16) =823a(17) =953a(18) =1097a(19) =1253a(20) =1424a(21) =1611a(22) =1812a(23) =2028a(24) =2261a(25) =2512a(26) =2780a(27) =3068a(28) =3377a(29) =3703

External references