159721

Properties

Appears in sequences

• Least prime p such that 2*prime(p*n)+1 = prime(q*n) for some prime q.at n=47A260882
• a(n) = Sum_{1 <= x_1, x_2 <= n} ( n/gcd(x_1, x_2, n) )^3.at n=10A372950
• Prime numbersat n=14660