269815domain: NAppears in sequencesNumber of (n+1)X(1+1) 0..2 arrays x(i,j) with row sums sum{j^4*x(i,j), j=1..1+1} nondecreasing, and column sums sum{i^4*x(i,j), i=1..n+1} nondecreasing.at n=12A232849Number of inversion sequences of length n avoiding the consecutive patterns 101, 102, 201, and 210.at n=10A328434