2476081domain: NPropertiesPrimalityPrimeyesAppears in sequencesLargest prime < n^5.at n=17A173832a(n) = n^5-n+1.at n=19A272162Primes of the form k^5-k+1.at n=9A338893a(n) = Sum_{1 <= x_1, x_2, x_3, x_4 <= n} n/gcd(x_1, x_2, x_3, x_4, n).at n=18A372961Prime numbersat n=181449