150257461domain: NAppears in sequencesT(n,k)=Number of (n+1)X(k+1) 0..4 arrays with row and column sums nondecreasing, and no adjacent elements equal.at n=17A233311T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with row and column sums nondecreasing, and no adjacent elements equal.at n=18A233311