Positive integers k for which 1 + 5*2^(k+2) divides the Fermat number 1 + 2^2^k.
A103478
Positive integers k for which 1 + 5*2^(k+2) divides the Fermat number 1 + 2^2^k.
Terms
- a(0) =5a(1) =23a(2) =73a(3) =125a(4) =1945a(5) =23471
External references
- oeis: A103478