667547

Properties

Appears in sequences

• a(n) = smallest prime number p_k such that 1/p_n + 1/p_{n+1} + ... + 1/p_k > 1.at n=31A119494
• Lesser of twin primes such that the sum of the twin prime pair is the sum of 2 positive cubes.at n=27A270244
• Prime numbersat n=54134