A142947 - OEIS

%I #10 Sep 08 2022 08:45:37

%S 113,241,433,881,1009,1201,1777,2161,2417,2609,2801,3121,3313,3697,

%T 3761,3889,4273,4337,4657,4721,5233,5297,6257,6449,6577,6833,6961,

%U 7537,7793,8369,8689,8753,9137,9521,9649,10289,10993,11057,11633,11953,12401,12721

%N Primes congruent to 49 mod 64.

%H Vincenzo Librandi, <a href="/A142947/b142947.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[1900]], MemberQ[{49}, Mod[#, 64]] &] (* _Vincenzo Librandi_, Sep 07 2012 *)

%o (Magma) [p: p in PrimesUpTo(13000) | p mod 64 eq 49]; // _Vincenzo Librandi_, Sep 07 2012

%Y Cf. A000040.

%K nonn,easy

%O 1,1

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