139501domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form p^2 + p - 1 when p is prime.at n=27A053185Smallest of four consecutive primes whose sum is a triangular number.at n=27A226154Primes of the form n^2-n-1 (for some n) such that p^2-p-1 is also prime.at n=29A237642Prime numbersat n=12968