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Vincenzo Librandi, Table of n, a(n) for n = 1..1000
pr=-6; Select[Prime[Range], MultiplicativeOrder[pr, # ] == #-1 &]
Sequence in context: A214033 A175873 A167802 * A054476 A099184 A098095
Adjacent sequences: A105875 A105876 A105877 * A105879 A105880 A105881
N. J. A. Sloane, Apr 24 2005