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T. D. Noe, Table of n, a(n) for n=1..1000
<< NumberTheory`NumberTheoryFunctions`; Prime[ Select[ Range, PrimitiveRoot[ Prime[ # ] ] == 15 & ] ]
(* first load *) << NumberTheory`NumberTheoryFunctions` (* then *) Select[ Prime@Range@10000, PrimitiveRoot@# == 15 &] (* Robert G. Wilson v, May 11 2001 *)
Cf. A001918, A001126, A019343.
Subset of A070269.
Sequence in context: A050805 A252135 A157737 * A177489 A192857 A210205
Adjacent sequences: A061325 A061326 A061327 * A061329 A061330 A061331
Klaus Brockhaus, Apr 24 2001