7615233domain: NAppears in sequencesNumber of (n+2)X(2+2) 0..2 arrays with nondecreasing maximum minus minimum of every three consecutive values in every row and column.at n=1A250509T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with nondecreasing maximum minus minimum of every three consecutive values in every row and column.at n=4A250510