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 A061335 Primes with 23 as smallest positive primitive root. 33

%I

%S 2161,8761,10559,12479,12911,13729,15601,18121,19009,21787,31249,

%T 35281,37321,42841,43201,49921,50951,51239,52711,53231,67489,70249,

%U 79801,88919,90121,90289,91393,97919,106129,106391,106681,107881,108529

%N Primes with 23 as smallest positive primitive root.

%H T. D. Noe, <a href="/A061335/b061335.txt">Table of n, a(n) for n = 1..1000</a>

%t Prime[ Select[ Range[12100], PrimitiveRoot[ Prime[ # ] ] == 23 & ] ]

%t Select[ Prime@Range@10880, PrimitiveRoot@# == 23 &] (* _Robert G. Wilson v_, May 11 2001 *)

%o (PARI) is(n)=my(v=[2, 3, 5, 7, 11, 13, 17, 19, 6, 10, 12, 14, 15, 18, 20, 21, 22]); if(!isprime(n) || n<99, return(0)); for(i=1,#v, if(znorder(Mod(v[i], n))==n-1, return(0))); znorder(Mod(23,n))==n-1 \\ _Charles R Greathouse IV_, Apr 27 2015

%Y Cf. A001918, A001126, A019350.

%K nonn

%O 1,1

%A _Klaus Brockhaus_, Apr 25 2001

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Last modified May 12 21:43 EDT 2021. Contains 343829 sequences. (Running on oeis4.)