Largest prime factor of 9^(2n)+1 (A063270).
A063271
Largest prime factor of 9^(2n)+1 (A063270).
Terms
- a(0) =2a(1) =41a(2) =193a(3) =6481a(4) =21523361a(5) =42521761a(6) =769a(7) =647753a(9) =282429005041a(10) =128653413121a(11) =56625998353a(12) =24127552321a(15) =42521761
External references
- oeis: A063271