A140372 - OEIS

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

%S 61,113,139,191,269,347,373,503,607,659,919,971,997,1049,1153,1231,

%T 1283,1361,1439,1543,1621,1699,1777,1907,1933,2011,2063,2089,2141,

%U 2297,2531,2557,2609,2687,2713,2791,2843,2999,3181,3259,3389,3467,3571,3623,3701

%N Primes of the form 26k + 9.

%C Also primes of the form 13k + 9. - _N. J. A. Sloane_, Jul 11 2008

%H Harvey P. Dale, <a href="/A140372/b140372.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Range[9, 30000, 26], PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Jun 21 2011 *)

%o (Magma) [a: n in [0..250]|IsPrime(a) where a is 26*n+9] // _Vincenzo Librandi_, Dec 18 2010

%Y Cf. A059245, A100202, A102732, A093191, A093350, A092178.

%K nonn,less

%O 1,1

%A _Juri-Stepan Gerasimov_, Jun 14 2008

%E Edited by _R. J. Mathar_, Jun 16 2008