OFFSET
1,3
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..10000
FORMULA
a(n) = A000010(n) mod 6.
MATHEMATICA
a[n_] := Mod[EulerPhi[n], 6]; Array[a, 100] (* Amiram Eldar, Aug 17 2024 *)
PROG
(PARI) A084300(n) = (eulerphi(n)%6); \\ Antti Karttunen, Aug 22 2017
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Labos Elemer, Jun 02 2003
STATUS
approved