159361domain: NPropertiesPrimalityPrimeyesAppears in sequencesLeast k such that the k-th squarefree number has exactly n zeros in its binary expansion.at n=17A372473Least k such that the k-th squarefree number has binary expansion of length n. Index of the smallest squarefree number >= 2^n.at n=18A372540Prime numbersat n=14627