The number of decimal digits in Lucas-Lehmer numbers A003010(k-2) divisible by 2^k-1.
A177875
The number of decimal digits in Lucas-Lehmer numbers A003010(k-2) divisible by 2^k-1.
Terms
- a(0) =2a(1) =5a(2) =19a(3) =1172a(4) =18742a(5) =74967a(6) =307062002
External references
- oeis: A177875