324901

Properties

Appears in sequences

• Primes of the form p*q+2 where p and q are consecutive primes.at n=20A048880
• Primes of form pq + 2 where p and q are twin primes.at n=7A051779
• Primes of form n^2 + mu(n), where mu is A008683.at n=16A062459
• Primes p such that all prime factors of p-1 have exponent 2.at n=25A089195
• Primes of form (prime(n)^2 + prime(n+1)^2)/2.at n=17A093343
• Primes associated with A127435.at n=28A127436
• Prime averages of two successive perfect prime powers.at n=13A131697
• Primes of the form prime(x)*prime(x+1) + (prime(x+1)-prime(x)).at n=21A140121
• Primes of the form 9*n^2 + 1.at n=24A156226
• Primes of the form p^2 + 2*p + 2 where p is prime.at n=25A157467
• Primes of the form m^2+1 such that m^2-7 = prevprime(m^2) (= A007917(m^2)).at n=8A157935
• Primes of the form n^2 + 1 such that (n - 1)^2 + 1 and (n + 1)^2 + 1 are semiprimes.at n=3A234693
• Half of the height of the right trapezoidal gnomon (of the derivative of Y=X^5).at n=18A281999
• Smallest prime p == 5 (mod 8) such that Q(sqrt(p)) has class number 2n+1.at n=23A355877
• Prime numbersat n=27997