OFFSET
1,2
LINKS
Hiroaki Yamanouchi, Table of n, a(n) for n = 1..404 (terms a(1)-a(48) from Max Alekseyev)
EXAMPLE
phi(113216152) = (1*1*3*2*1*6*1*5*2)^3, so 113216152 is in the sequence.
MATHEMATICA
Do[If[Apply[Times, IntegerDigits[n]]^3==EulerPhi[n], Print[n]], {n, 300000000}]
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Farideh Firoozbakht, Jan 02 2009
EXTENSIONS
a(6)-a(18) from Donovan Johnson, Nov 01 2010
a(19)-a(22) from Donovan Johnson, Aug 15 2013
a(23)-a(48) from Max Alekseyev, Aug 18 2013
STATUS
approved