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A167805
Numbers with primitive root -9.
19
2, 4, 7, 11, 14, 19, 22, 23, 31, 38, 43, 46, 47, 49, 59, 62, 71, 79, 83, 86, 94, 98, 107, 118, 127, 131, 139, 142, 158, 163, 166, 167, 179, 191, 199, 211, 214, 223, 227, 239, 251, 254, 262, 263, 278, 283, 311, 326, 331, 334, 343, 347, 358, 359, 361, 379, 382, 383
OFFSET
1,1
LINKS
MATHEMATICA
pr=-9; Select[Range[2, 2000], MultiplicativeOrder[pr, # ] == EulerPhi[ # ] &]
CROSSREFS
Cf. A105881 (primes with primitive root -9)
Sequence in context: A211372 A054850 A225154 * A027427 A306070 A262136
KEYWORD
nonn
AUTHOR
T. D. Noe, Nov 12 2009
STATUS
approved