1301617domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form m*prime(m) + (m + 1)*prime(m + 1) + (m + 2)*prime(m + 2).at n=19A268465Primes p such that phi(p*(p-1)/2) is a triangular number (A000217).at n=6A291340Prime numbersat n=100142