1118479domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n)=(n^5-n-30)/30.at n=32A131211Primes of the form k^5 + k^4 + k^3 + k^2 + k - 1.at n=4A182384a(n) = Sum_{ d >= 1, d divides n} (-1)^(n-d)*d^4.at n=31A279395Prime numbersat n=87069