Indices n of primes p(n), p(n+2) such that p(n)-1 and p(n+2)-1 have the same largest prime factor.
A105308
Indices n of primes p(n), p(n+2) such that p(n)-1 and p(n+2)-1 have the same largest prime factor.
Terms
- a(0) =4a(1) =6a(2) =11a(3) =45a(4) =1408a(5) =13313a(6) =41752a(7) =142122836a(8) =48792948403
External references
- oeis: A105308