132711domain: NAppears in sequencesa(n) = T(n,2n-1), T given by A027023.at n=13A027050Number of (n+1)X(1+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..1+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.at n=14A233058