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%I #22 Sep 08 2022 08:44:48
%S 0,1,3,5,7,9,13,15,17,19,23,27,29,33,35,37,43,45,49,55,57,59,63,65,75,
%T 77,79,83,85,87,89,93,97,103,105,115,117,119,127,129,133,139,143,147,
%U 149,153,155,159,163,167,169,173,185,187,189,195,197,199,205,213,215,217,219,225,227
%N Numbers k such that 3*k+2 is prime.
%H Vincenzo Librandi, <a href="/A024893/b024893.txt">Table of n, a(n) for n = 1..1000</a>
%F a(n) = A087370(n)-1 = A088879(n)+1.
%t Select[Range[0, 250], PrimeQ[3# + 2] &] (* _Vincenzo Librandi_, Sep 25 2012 *)
%o (Magma) [n: n in [0..1000] | IsPrime(3*n+2)]; // _Vincenzo Librandi_, Nov 20 2010
%o (PARI) is(n)=isprime(3*n+2) \\ _Charles R Greathouse IV_, Feb 17 2017
%Y Cf. A003627 (associated primes), A091177 (gives prime index).
%Y Cf. A087370, A088879.
%K nonn,easy
%O 1,3
%A _Clark Kimberling_
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