A140535 - OEIS

%I #18 Jan 24 2023 06:56:47

%S 211,419,421,631,839,1049,1051,1259,1471,1889,2099,2309,2311,2521,

%T 2729,2731,2939,3359,3361,3571,3779,3989,4201,4409,4621,4831,5039,

%U 5669,5879,5881,6089,6091,6299,6301,6719,7349,7351,7559,7561,8191,8609,8819,8821

%N Primes congruent to 1 or 209 mod 210.

%H Vincenzo Librandi, <a href="/A140535/b140535.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[1100]], MemberQ[{1, 209}, Mod[#, 210]] &] (* _Vincenzo Librandi_, Aug 15 2012 *)

%o (Magma) [p: p in PrimesUpTo(9000)|p mod 210 in {1,209}]; // _Vincenzo Librandi_, Dec 18 2010

%Y Cf. A000040.

%K nonn,easy

%O 1,1

%A _Juri-Stepan Gerasimov_, Jul 28 2008

%E a(5) corrected by _D. S. McNeil_, Dec 10 2009