Primes of the form Phi(phi(k),3), the phi(k)-th Cyclotomic polynomial evaluated at 3, where phi is the Euler totient function.
A211875
Primes of the form Phi(phi(k),3), the phi(k)-th Cyclotomic polynomial evaluated at 3, where phi is the Euler totient function.
Terms
- a(0) =2a(1) =7a(2) =61a(3) =73a(4) =6481a(5) =530713a(6) =42521761a(7) =47763361a(8) =23535794707a(9) =282429005041a(10) =374857981681
External references
- oeis: A211875