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 A167795 Numbers with primitive root 7. 20
 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 Vincenzo Librandi, Table of n, a(n) for n = 1..1000 MATHEMATICA pr=7; Select[Range[2, 2000], MultiplicativeOrder[pr, # ] == EulerPhi[ # ] &] CROSSREFS Cf. A019337 (primes with primitive root 7) Sequence in context: A003278 A236246 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 December 14 14:28 EST 2018. Contains 318097 sequences. (Running on oeis4.)