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A167795 Numbers with primitive root 7. 0
2, 4, 5, 10, 11, 13, 17, 22, 23, 26, 34, 41, 46, 61, 67, 71, 79, 82, 89, 97, 101, 107, 121, 122, 127, 134, 142, 151, 158, 163, 169, 173, 178, 179, 194, 202, 211, 214, 229, 239, 241, 242, 254, 257, 263, 269, 289, 293, 302, 326, 338, 346, 347, 349, 358, 359, 379 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..57.

MATHEMATICA

pr=7; Select[Range[2, 2000], MultiplicativeOrder[pr, # ] == EulerPhi[ # ] &]

CROSSREFS

Cf. A019337 (primes with primitive root 7)

Sequence in context: A156799 A003278 A004792 * A138048 A057762 A109511

Adjacent sequences:  A167792 A167793 A167794 * A167796 A167797 A167798

KEYWORD

nonn

AUTHOR

T. D. Noe, Nov 12 2009

STATUS

approved

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Last modified May 18 04:49 EDT 2013. Contains 225419 sequences.