a(n) = Sum_{k=1..n} (n/gcd(k,n))^(n/gcd(k,n) - 2).
A342411
a(n) = Sum_{k=1..n} (n/gcd(k,n))^(n/gcd(k,n) - 2).
Terms
- a(0) =1a(1) =2a(2) =7a(3) =34a(4) =501a(5) =2600a(6) =100843a(7) =1048610a(8) =28697821a(9) =400000502a(10) =23579476911a(11) =247669459528
External references
- oeis: A342411