a(n) = Sum_{k=1..n} phi(gcd(k, n))^gcd(k, n).
A342543
a(n) = Sum_{k=1..n} phi(gcd(k, n))^gcd(k, n).
Terms
- a(0) =1a(1) =2a(2) =10a(3) =19a(4) =1028a(5) =76a(6) =279942a(7) =65558a(8) =10077718a(9) =1049608a(10) =100000000010a(11) =16777334a(13) =78364444044
External references
- oeis: A342543