422069

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 2x + 1.at n=19A023302
• Initial (unsafe) primes of Cunningham chains of first type with length exactly 5. Primes in A059453 that survive as primes just four "2p+1 iterations", forming chains of exactly 5 terms.at n=12A059764
• Primes p such that 2p+1, 4p+3, 6p+5, 8p+7 are all primes.at n=17A107021
• Smallest primes starting a complete four iterations Cunningham chain of the first or second kind.at n=31A110027
• Numbers n such that the difference between the greatest prime divisor of n^3 + 1 and the sum of the other distinct prime divisors is equal to +-1.at n=22A243609
• Initial primes of 5 consecutive primes with consecutive gaps 8,6,4,2.at n=34A289907
• Constant term in the expansion of (3 + x + y + z + 1/x + 1/y + 1/z + x*y + y*z + z*x + 1/(x*y) + 1/(y*z) + 1/(z*x) + x*y*z + 1/(x*y*z))^n.at n=6A328808
• Prime numbersat n=35543