Smallest number k > 1 such that k^n - 1 contains n distinct prime divisors.
A219019
Smallest number k > 1 such that k^n - 1 contains n distinct prime divisors.
Terms
- a(0) =3a(1) =4a(2) =7a(3) =8a(4) =16a(5) =11a(6) =79a(7) =44a(8) =81a(9) =91a(10) =1024a(11) =47a(12) =12769a(13) =389a(14) =256a(15) =413a(16) =46656a(17) =373a(18) =1048576a(19) =1000a(20) =4096a(21) =43541
External references
- oeis: A219019