3468214093domain: NAppears in sequencesNumbers p such that p, p + 4, p + 10, p + 18, p + 28, p + 40, p + 54, p + 70, p + 88, p + 108 are all prime.at n=17A229765Least prime p such that x^2 + 3*x + p produces primes for x = 0..n-1 but not x = n.at n=11A230663