login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

Primes of the form 16k+13.
5

%I #16 Aug 31 2019 11:22:51

%S 13,29,61,109,157,173,269,317,349,397,461,509,541,557,653,701,733,797,

%T 829,877,941,1021,1069,1117,1181,1213,1229,1277,1373,1453,1549,1597,

%U 1613,1693,1709,1741,1789,1901,1933,1949,1997,2029,2141,2221,2237,2269

%N Primes of the form 16k+13.

%C Which sequence, this or A141194, produces more primes? The race is very close. For example, A141194(1000)=80599 and A141196(1000)=80909, a difference of just 32 primes after a thousand terms. - _Art Baker_, Aug 07 2019

%H T. D. Noe, <a href="/A141196/b141196.txt">Table of n, a(n) for n=1..1000</a>

%t lst={};Do[If[PrimeQ[p=16*n+13],AppendTo[lst,p]],{n,0,5!}];lst (* _Vladimir Joseph Stephan Orlovsky_, Jan 28 2009 *)

%Y Cf. A094407, A091968, A127589, A141194, A105126, A141195, A127576.

%K nonn

%O 1,1

%A _T. D. Noe_, Jun 12 2008