133321

Properties

Appears in sequences

• Smallest prime having least positive primitive root n, or 0 if no such prime exists.at n=27A023048
• Primes with 28 as smallest positive primitive root.at n=0A061732
• Indices of the 12-gonal numbers which are also centered 12-gonal number or numbers X such that 30*X^2-24*X+3 is a square.at n=4A133284
• Let m = n-th number that is not a perfect power, A007916(n). Then a(n) = smallest prime having least positive primitive root m.at n=20A133432
• Smallest number with n as least nonnegative primitive root, or 0 if no such number exists.at n=28A214158
• Pseudoprimes to base 5, written in base 5.at n=10A262102
• Primes whose base-9 representation is a square in base 10.at n=27A267821
• Prime numbersat n=12443