67271

Properties

Appears in sequences

• Primes that remain prime through 3 iterations of function f(x) = 3x + 8.at n=37A023279
• a(0) = 3; for n > 0, a(n) is the greatest prime factor of a(n-1)^2 - 2.at n=7A031440
• Number of different Euler multigraphs with n edges, loops forbidden.at n=14A068592
• Smallest prime that is the sum of prime(n) consecutive primes.at n=34A082277
• a(n) = 70*n^2 + 1.at n=31A158734
• Lesser of twin primes p1 such that p1*p2+-6 are prime numbers.at n=22A174955
• Primes of the form 5n^2 - 9.at n=19A201790
• a(0) = 12, after which, if a(n-1) = product_{k >= 1} (p_k)^(c_k), then a(n) = (1/2) * (1 + product_{k >= 1} (p_{k+1})^(c_k)), where p_k indicates the k-th prime, A000040(k).at n=34A246342
• Lesser of twin primes for which phi(p-1) < phi(p+1).at n=17A286715
• Primes such that the next 10 prime gaps are all distinct.at n=18A372550
• Prime numbersat n=6703