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A167793
Numbers with primitive root 5.
19
2, 3, 6, 7, 9, 14, 17, 18, 23, 27, 34, 37, 43, 46, 47, 49, 53, 54, 73, 74, 81, 83, 86, 94, 97, 98, 103, 106, 107, 113, 137, 146, 157, 162, 166, 167, 173, 193, 194, 197, 206, 214, 223, 226, 227, 233, 243, 257, 263, 274, 277, 283, 289, 293, 307, 314, 317, 334, 343, 346
OFFSET
1,1
LINKS
MATHEMATICA
pr=5; Select[Range[2, 2000], MultiplicativeOrder[pr, # ] == EulerPhi[ # ] &]
CROSSREFS
Cf. A019335 (primes with primitive root 5)
Sequence in context: A246647 A177729 A049993 * A262932 A018423 A018700
KEYWORD
nonn
AUTHOR
T. D. Noe, Nov 12 2009
STATUS
approved