53693domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) is the least prime p, such that next_prime(2*p) - 2*p = 2*n - 1.at n=27A059846Primes from merging of 5 successive digits in decimal expansion of the Golden Ratio, (1+sqrt(5))/2.at n=9A103809Primes of the form 14*k^2 + 26*k + 13.at n=21A176617Prime numbersat n=5472