565667domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) is the smallest prime p beginning with 2n such that the difference between p and the next prime is 2n.at n=27A162357Primes p such that q-p = 56, where q is the next prime after p.at n=20A204667Primes having only {5, 6, 7} as digits.at n=36A260829Prime numbersat n=46505