Numbers m such that all odd numbers k, 1 < k < m, relatively prime to m are primes.
A002271
Numbers m such that all odd numbers k, 1 < k < m, relatively prime to m are primes.
Terms
- a(0) =2a(1) =3a(2) =4a(3) =5a(4) =6a(5) =7a(6) =8a(7) =9a(8) =12a(9) =15a(10) =18a(11) =21a(12) =24a(13) =30a(14) =45a(15) =105
External references
- oeis: A002271