370387

Properties

Appears in sequences

• Prime factors of numbers in A006521 (numbers k that divide 2^k + 1).at n=20A057719
• Primes of the form 2k^3+1.at n=16A201107
• a(n) = smallest Ramanujan prime R_k in A104272 that is >= A000101(n).at n=16A214757
• Prime factors of numbers in A289257.at n=9A289258
• Odd integers k>=3 such that k*(k-1)/2 divides 2^((k-1)/2)+1.at n=4A337818
• a(n) = 1 + Product_{d|n, d < n} a(d).at n=29A343390
• a(n) = 1 + Product_{d|n, d < n} a(d).at n=41A343390
• Prime numbersat n=31547