739601

Properties

Appears in sequences

• a(n) is the smallest prime p where |d(p-1) - d(p+1)| = n. (d(m) = the number of divisors of m.)at n=21A145338
• Lower twin primes p1 such that p1-1 is a square.at n=25A145824
• Primes of the form 81*k^2 - 72*k + 17.at n=10A154276
• Primes of the form p^2 + 2*p + 2 where p is prime.at n=31A157467
• Prime numbersat n=59503