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%I #29 Feb 05 2024 00:59:39
%S 1,2,3,5,6,8,9,11,12,17,18,20,23,24,27,29,30,32,36,38,39,44,45,47,51,
%T 53,57,60,62,65,66,68,69,74,75,78,83,86,87,89,96,99,102,104,107,110,
%U 111,113,116,117,120,122,123,129,131,138,143,144,146,149,150,153,155,156,159,162,167
%N Numbers k such that 10*k - 7 is prime.
%H Vincenzo Librandi, <a href="/A024913/b024913.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Range[500], PrimeQ[10 # - 7] &] (* _Vincenzo Librandi_, May 19 2014 *)
%o (Magma) [n: n in [1..1000] |IsPrime(10*n-7)]; _Vincenzo Librandi_, Nov 19 2010
%o (PARI) is(n)=isprime(10*n-7) \\ _Charles R Greathouse IV_, Jun 06 2017
%Y Cf. A030431 (associated primes).
%K nonn,easy
%O 1,2
%A _Clark Kimberling_
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