68171domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers n such that n^2 = 19*m^2 + 19*m + 1.at n=3A105839Primes p such that q-p = 36, where q is the next prime after p.at n=27A134117Primes of the form 2*n^2 + 74*n + 35.at n=23A217500Prime numbersat n=6787