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Vincenzo Librandi, Table of n, a(n) for n = 1..1000
Index entries for primes by primitive root
pr=3; Select[Prime[Range], MultiplicativeOrder[pr, # ] == #-1 &]
Sequence in context: A101150 A174281 A038875 * A045356 A158526 A146364
Adjacent sequences: A019331 A019332 A019333 * A019335 A019336 A019337
David W. Wilson