341640domain: NAppears in sequencesa(n) = floor(3^n / n).at n=13A092763Partial sums of round(3^n/7).at n=13A178703Number of 7-bead necklaces of n colors allowing reversal, with no adjacent beads having the same color.at n=9A208545Floor((3^n-1)/n).at n=13A225585