2156849domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest squarefree k such that the first n nonzero values of mu(j), j>=k, are all equal (mu is the Moebius function).at n=19A133295Least number k such that the sum of the n Moebius function values beginning at k reaches the minimum value -A083544(n).at n=25A343172Prime numbersat n=159726