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 A007349 Primes with both 10 and -10 as primitive root. (Formerly M5034) 1
 17, 29, 61, 97, 109, 113, 149, 181, 193, 229, 233, 257, 269, 313, 337, 389, 433, 461, 509, 541, 577, 593, 701, 709, 821, 857, 937, 941, 953, 977, 1021, 1033, 1069, 1097 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 REFERENCES M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 864. N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy]. R. G. Wilson, V, Letter to N. J. A. Sloane, Aug. 1993 MATHEMATICA pr=10; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == MultiplicativeOrder[-pr, # ] == #-1 &] Select[Prime[Range[5, 200]], PrimitiveRoot[#, 10]==10&&PrimitiveRoot[#, #-10] == #-10&] (* Harvey P. Dale, Oct 10 2019 *) CROSSREFS Sequence in context: A190556 A241485 A089629 * A154616 A196938 A225943 Adjacent sequences:  A007346 A007347 A007348 * A007350 A007351 A007352 KEYWORD nonn,changed AUTHOR STATUS approved

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Last modified October 21 11:15 EDT 2019. Contains 328294 sequences. (Running on oeis4.)