a(n) is the greatest prime factor of a(n-1)^2+a(n-1)+1.
A056650
a(n) is the greatest prime factor of a(n-1)^2+a(n-1)+1.
Terms
- a(0) =2a(1) =7a(2) =19a(3) =127a(4) =5419a(5) =1009a(6) =9181a(7) =1423a(8) =96493a(9) =163350799a(10) =25249969a(12) =784949209969a(17) =6521735641a(18) =11273204227a(19) =16141059763
External references
- oeis: A056650