Numbers m having more than one representation as k*(1+phi(k)/2), where phi(k) is Euler's totient function.
A186309
Numbers m having more than one representation as k*(1+phi(k)/2), where phi(k) is Euler's totient function.
Terms
- a(0) =36a(1) =540a(2) =39852a(3) =75418035a(4) =113570688a(5) =120668856a(6) =141963360a(7) =150836070a(8) =18826510275a(9) =37653020550
External references
- oeis: A186309