OFFSET
0,2
COMMENTS
Conjecture: a(n) > 0 for all n.
PROG
(PARI) a(n) = {my(x = 1); while ((x-1) % eulerphi(x) != n, x++); x; } \\ Michel Marcus, Feb 27 2016
CROSSREFS
KEYWORD
nonn
AUTHOR
Christina Steffan, Feb 08 2016
STATUS
approved