login
Primes congruent to 49 mod 55.
1

%I #9 Sep 08 2022 08:45:37

%S 269,379,599,709,929,1039,1259,1699,2029,2579,2689,2909,3019,4229,

%T 4339,4889,4999,5659,5879,6869,7309,7529,7639,8629,8849,9619,9839,

%U 9949,10169,10499,10939,11159,11489,12149,12479,12589,12809,12919,13249,13469,13799

%N Primes congruent to 49 mod 55.

%H Vincenzo Librandi, <a href="/A142636/b142636.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[2300]], MemberQ[{49}, Mod[#, 55]] &] (* _Vincenzo Librandi_, Sep 01 2012 *)

%t Select[Range[49,14000,55],PrimeQ] (* _Harvey P. Dale_, Sep 30 2018 *)

%o (Magma) [p: p in PrimesUpTo(14000) | p mod 55 eq 49]; // _Vincenzo Librandi_, Sep 01 2012

%Y Cf. A000040.

%K nonn,easy

%O 1,1

%A _N. J. A. Sloane_, Jul 11 2008