12952862226domain: NAppears in sequencesNumber of ways to move elements of an nXnXn triangular array to themselves or a neighbor, with no more than 3-1 2-cycles.at n=6A271964T(n,k)=Number of ways to move elements of an nXnXn triangular array to themselves or a neighbor, with no more than k-1 2-cycles.at n=42A271969