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Primes of the form 100*n+7.
2

%I #11 Sep 08 2022 08:45:48

%S 7,107,307,607,907,1307,1607,1907,2207,2707,3307,3407,3607,3907,4007,

%T 4507,5107,5407,5507,5807,6007,6607,6907,7207,7307,7507,7607,7907,

%U 8707,8807,9007,9907,10007,10607,11807,12007,12107,12907,13007,13807,13907,14107,14207

%N Primes of the form 100*n+7.

%H Vincenzo Librandi, <a href="/A166547/b166547.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Table[100 n + 7, {n, 0, 300}], PrimeQ]; // _Vincenzo Librandi_, Jul 25 2012

%o (Magma) [a: n in [0..250] | IsPrime(a) where a is 100*n+7]; // _Vincenzo Librandi_, Jul 25 2012

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Oct 25 2009