a(n) = Sum_{k = 1..n} k^phi(n), where phi(n) = A000010(n).
A235137
a(n) = Sum_{k = 1..n} k^phi(n), where phi(n) = A000010(n).
Terms
- a(0) =1a(1) =3a(2) =14a(3) =30a(4) =979a(5) =91a(6) =184820a(7) =8772a(8) =978405a(9) =25333a(10) =40851766526a(11) =60710a(13) =19092295a(14) =5666482312a(15) =9961449608a(17) =105409929a(19) =70540730666a(23) =351625763020
External references
- oeis: A235137