1274989

Properties

Appears in sequences

• Bertrand primes: a(n) is largest prime < 2*a(n-1) for n > 1, with a(1) = 2.at n=21A006992
• a(n) = largest prime <= 2a(n-1), with a(0)=1.at n=22A185231
• Prime numbersat n=98257