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%I #23 Feb 03 2024 00:52:50
%S 1,4,8,10,11,13,16,23,28,29,31,34,38,41,43,49,50,53,55,56,64,70,71,73,
%T 74,76,79,83,94,95,100,106,109,115,116,118,121,125,128,130,136,140,
%U 143,148,149,151,155,160,161,164,169,175,178,184,185,193,199,200,206,211
%N Numbers k such that 8k + 9 is prime.
%C One less than the associated term in A005123. - _R. J. Mathar_, Jan 05 2011
%H Vincenzo Librandi, <a href="/A153762/b153762.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Range[0, 250],PrimeQ[8*# + 9]&] (* _Vincenzo Librandi_, Sep 24 2012 *)
%o (Magma) [n: n in [0..300] | IsPrime(8*n + 9)]; // _Vincenzo Librandi_, Sep 24 2012
%o (PARI) is(n)=isprime(8*n+9) \\ _Charles R Greathouse IV_, Sep 24 2012
%Y Cf. A023232.
%K nonn,easy
%O 1,2
%A _Vincenzo Librandi_, Jan 01 2009
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