19929037

Properties

Appears in sequences

• Smallest prime p such that 2*p+1 has n prime factors (with multiplicity).at n=14A072060
• a(n) is the least prime of the form (3^j*5^k - 1)/2, j > 0, k > 0, j + k = n. a(n) = 0 if no such prime exists.at n=13A337423
• Prime numbersat n=1266374