OFFSET
1,2
LINKS
Harry J. Smith, Table of n, a(n) for n = 1..100
EXAMPLE
For p prime, a(p) = (p^(p-1))*(p-1) = ((phi(p)+1)^phi(p))*phi(p).
MATHEMATICA
a[n_]:=EulerPhi[n^n]; lst={}; Do[AppendTo[lst, a[n]], {n, 0, 2*4!}]; lst (* Vladimir Joseph Stephan Orlovsky, Dec 03 2008 *)
Table[EulerPhi[n^n], {n, 20}] (* Harvey P. Dale, Jun 02 2015 *)
PROG
(PARI) { for (n=1, 100, write("b064447.txt", n, " ", eulerphi(n^n)) ) } \\ Harry J. Smith, Sep 14 2009
CROSSREFS
KEYWORD
nonn
AUTHOR
Labos Elemer, Oct 02 2001
STATUS
approved