a(n) = Sum_{d|n} (d^d)', where ' is the arithmetic derivative.

A347146

a(n) = Sum_{d|n} (d^d)', where ' is the arithmetic derivative.

Terms

    a(0) =0a(1) =4a(2) =27a(3) =1028a(4) =3125a(5) =233311a(6) =823543a(7) =201327620a(8) =2324522961a(9) =70000003129a(10) =285311670611

External references