362480domain: NAppears in sequencesTriangular array read by rows: a(n,k) = Sum_{d|k} mu(d)*U(n,k/d)/n if k|n else 0, where U(n,k) = A047916(n,k) (1<=k<=n).at n=54A047919Number of cyclic permutations of [n] with symmetry order s=1.at n=9A325956