OFFSET
1,1
COMMENTS
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..12973
PROG
(PARI) for(n=1, 200, y=0; s=eulerphi(n); for(k=1, (n-1), if(eulerphi(k)==s, y=1; break)); if(y, print1(n, ", ")));
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Dec 08 2017
STATUS
approved