4581555620domain: NAppears in sequencesT(n,k)=Number of nXk arrays containing k copies of 0..n-1 avoiding the pattern down-up in every row and equal-up in every column.at n=39A269646Number of 4Xn arrays containing n copies of 0..4-1 avoiding the pattern down-up in every row and equal-up in every column.at n=5A269648