5460708807domain: NAppears in sequencesNumber of nX3 arrays containing 3 copies of 0..n-1 with no equal vertical neighbors and new values introduced sequentially from 0.at n=6A265230T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no equal vertical neighbors and new values introduced sequentially from 0.at n=42A265232