474497

Properties

Appears in sequences

• Twin primes p and r (p < r) such that p-1, p+1 and r+1 are not cubefree.at n=4A162874
• Lesser of twin primes p such that none of p-1, p+1 and p+3 are cubefree.at n=2A162989
• For n >= 1, a(n) is the least prime p such that the arithmetic mean of (n + 1) consecutive primes starting with p is a perfect square, or a(n) = -1 if no such p exists.at n=36A365706
• Prime numbersat n=39578