1004668770domain: NAppears in sequencesNumber of aperiodic necklaces of n beads of 6 colors; dimensions of free Lie algebras.at n=13A032164a(n) = floor(6^n/n).at n=12A129796Number of n-bead necklaces of 7 colors not allowing reversal, with no adjacent beads having the same color.at n=12A208534a(n) = (n^13 - n)/13.at n=6A366489