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 A007348 Primes for which -10 is a primitive root. (Formerly M3035) 3
 3, 17, 29, 31, 43, 61, 67, 71, 83, 97, 107, 109, 113, 149, 151, 163, 181, 191, 193, 199, 227, 229, 233, 257, 269, 283, 307, 311, 313, 337, 347, 359, 389, 431, 433, 439, 443, 461, 467, 479, 509, 523, 541, 563, 577, 587, 593, 599, 631, 683, 701, 709, 719, 787, 821, 827, 839 (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), Table 24.8, p. 864. N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS R. J. Mathar, Table of n, a(n) for n = 1..10000 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, # ] == #-1 & ] PROG (PARI) is(n)=gcd(n, 10)==1 && znorder(Mod(-10, n))==n-1 \\ Charles R Greathouse IV, Nov 25 2014 CROSSREFS Cf. A038880. Sequence in context: A045436 A296925 A167806 * A105912 A249374 A106085 Adjacent sequences:  A007345 A007346 A007347 * A007349 A007350 A007351 KEYWORD nonn AUTHOR EXTENSIONS More terms from N. J. A. Sloane, Apr 24 2005 Edited by N. J. A. Sloane, Aug 29 2008 at the suggestion of R. J. Mathar A&S reference and Mathematica program corrected by T. D. Noe, Nov 04 2009 STATUS approved

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Last modified October 16 06:24 EDT 2019. Contains 328049 sequences. (Running on oeis4.)