Number of (n+1)X(2+1) 0..2 arrays x(i,j) with row sums sum{x(i,j), j=1..2+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.
A233115
Number of (n+1)X(2+1) 0..2 arrays x(i,j) with row sums sum{x(i,j), j=1..2+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.
Terms
- a(0) =112a(1) =1182a(2) =11741a(3) =110078a(4) =980034a(5) =8365600a(6) =69167118a(7) =557105428a(8) =4392700238a(9) =34045606996a(10) =260119493281
External references
- oeis: A233115