

A084547


Numbers n that have primitive roots less than n that are nonnegative perfect cubes.


3



2, 11, 25, 29, 34, 50, 53, 58, 59, 83, 89, 101, 106, 107, 113, 121, 125, 131, 137, 149, 166, 167, 173, 178, 179, 197, 202, 214, 226, 227, 233, 250, 251, 257, 263, 269, 274, 281, 289, 293, 298, 317, 334, 346, 347, 353, 358, 359
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


LINKS



EXAMPLE

89 is in the sequence because 27 is a primitive root of 89 and 27 is three cubed.


MATHEMATICA

q[n_] := Intersection[PrimitiveRootList[n], Range[Floor@Surd[n, 3]]^3] != {}; Select[Range[360], q] (* Amiram Eldar, Sep 25 2021 *)


CROSSREFS



KEYWORD

nonn


AUTHOR

Hauke Worpel (hw1(AT)email.com), May 30 2003


EXTENSIONS



STATUS

approved



