18059

Properties

Appears in sequences

• Primes setting records for earliest alphabetical position in American English.at n=12A050444
• Smaller of twin primes whose middle term is a multiple of A002110(4)=210.at n=17A060230
• Primes p such that the number of distinct prime divisors of all composite numbers between p and the next prime is 5.at n=27A075585
• Numbers k such that k remains prime after five iteration of function f(j) = 14*f(j)+1, starting at f(1) = prime.at n=1A086127
• Smallest member of a pair of consecutive twin prime pairs that have three primes between them.at n=25A089635
• Primes p such that p + 2 and p*(p + 2) + 2 are primes.at n=33A108013
• Number of permutations in S_n avoiding 345{bar 2}{bar 1} (i.e., every occurrence of 345 is contained in an occurrence of a 34521).at n=9A137557
• Primes congruent to 5 mod 59.at n=38A142732
• Primes congruent to 3 mod 61.at n=35A142801
• Primes of the form 2*k^2 + 9.at n=37A201476
• Prime(k), where k is such that (1 + Sum_{i=1..k} prime(i)^17) / k is an integer.at n=9A233557
• Primes p such that p+2 and p^3+2 are also prime.at n=41A240110
• Lesser of twin primes (A001359) such that both are full reptend primes (A001913).at n=43A243096
• Lesser of twin prime pairs of the form (40n - 21, 40n - 19).at n=27A250025
• Prime numbers indexed by oblong numbers.at n=44A254955
• Subtract 1 from the terms of A256407.at n=30A256410
• Primes p such that p+2 is prime with prime(p+2)-prime(p)=6.at n=12A261533
• Integers k such that 28*phi(29*197^3*k) is not a totient number where phi is the totient function.at n=7A361396
• Prime numbersat n=2070