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A140799 Primes congruent to 101 or 109 mod 210. 1

%I #17 Sep 08 2022 08:45:34

%S 101,109,311,521,739,941,1151,1361,1571,1579,1789,1999,2411,2621,3041,

%T 3049,3251,3259,3461,3469,3671,3881,3889,4091,4099,4519,4721,4729,

%U 4931,5351,5569,5779,5981,6199,6619,6829,7039,7451,7459,7669,7879,8081,8089

%N Primes congruent to 101 or 109 mod 210.

%H Vincenzo Librandi, <a href="/A140799/b140799.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[1100]],MemberQ[{101,109},Mod[#,210]]&] (* _Vincenzo Librandi_, Aug 15 2012 *)

%o (Magma) [p: p in PrimesUpTo(10000)|p mod 210 in {101,109}] // _Vincenzo Librandi_, Dec 19 2010

%Y Cf. A000040.

%K nonn,easy

%O 1,1

%A _Juri-Stepan Gerasimov_, Jul 28 2008

%E Entries checked by _R. J. Mathar_, Apr 27 2010

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Last modified April 25 06:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)