191773domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers k for which 10k+1, 10k+3, 10k+7, 10k+9, 10k+13 and 10k+19 are primes.at n=9A178083The number of distinct lines defined by an n X n X n grid of points.at n=7A222267Smallest prime > (3/2)^n.at n=29A242738Prime numbersat n=17309