389287

Properties

Appears in sequences

• Primes of the form 54k+1 generated recursively. Initial prime is 109. General term is a(n) = Min {p is prime; p divides (R^27 - 1)/(R^9 - 1); p == 1 (mod 27)}, where Q is the product of previous terms in the sequence and R = 3*Q.at n=19A125044
• Primes that are the first in a run of exactly 5 emirps.at n=27A346025
• Prime numbersat n=33008