Number of (n+1)X(1+1) 0..3 arrays x(i,j) with row sums sum{j^2*x(i,j), j=1..1+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing.
A232706
Number of (n+1)X(1+1) 0..3 arrays x(i,j) with row sums sum{j^2*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) =86a(1) =542a(2) =2694a(3) =11181a(4) =40292a(5) =129801a(6) =380718a(7) =1032575a(8) =2618582a(9) =6265567a(10) =14247628a(11) =30973276a(12) =64691673a(13) =130338859a(14) =254200605a(15) =481341431a(16) =887215679a(17) =1595444529a(18) =2804527975a(19) =4827471451a(20) =8149530067a(21) =13511225076a(22) =22026277342a(23) =35347008158
External references
- oeis: A232706