OFFSET
1,3
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..200
EXAMPLE
a(9) = phi(9)^(9-phi(9)) = 6^3 = 216
MATHEMATICA
ep[n_]:=Module[{p=EulerPhi[n]}, p^(n-p)]; Array[ep, 30] (* Harvey P. Dale, Mar 25 2014 *)
PROG
(PARI) a(n) = eulerphi(n)^(n-eulerphi(n)) \\ Michel Marcus, Jun 01 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
Luc Stevens (lms022(AT)yahoo.com), Apr 23 2006
EXTENSIONS
Corrected by Michel Marcus, Jun 01 2013
STATUS
approved