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A111367 Numbers k such that 7*k + 5 is prime. 1

%I #19 Sep 08 2022 08:45:21

%S 0,2,6,8,12,14,18,24,32,36,38,44,54,56,62,66,72,74,84,86,96,98,102,

%T 104,108,122,126,132,138,144,152,156,164,168,174,176,182,186,188,204,

%U 206,212,218,222,228,236,242,248,254,258,266,278,282,284,294,308,314,324

%N Numbers k such that 7*k + 5 is prime.

%H Daniel Starodubtsev, <a href="/A111367/b111367.txt">Table of n, a(n) for n = 1..10000</a>

%e k=108 is a term because 7*k + 5 = 761 is prime.

%o (Magma) [n: n in [0..100000] |IsPrime(7*n+5)] // _Vincenzo Librandi_, Nov 13 2010

%o (PARI) is(n)=isprime(7*n+5) \\ _Charles R Greathouse IV_, Jun 13 2017

%Y Cf. A017041, A045458, A111224.

%K nonn,easy

%O 1,2

%A _Parthasarathy Nambi_, Nov 07 2005

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)