66146domain: NAppears in sequencesNumber of n-bead necklaces labeled with numbers -2..2 not allowing reversal, with sum zero with no three beads in a row equal.at n=9A208939Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=8A316618