This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A166547 #17 Aug 04 2025 03:50:18
%S A166547 7,107,307,607,907,1307,1607,1907,2207,2707,3307,3407,3607,3907,4007,
%T A166547 4507,5107,5407,5507,5807,6007,6607,6907,7207,7307,7507,7607,7907,
%U A166547 8707,8807,9007,9907,10007,10607,11807,12007,12107,12907,13007,13807,13907,14107,14207
%N A166547 Primes of the form 100*k+7.
%H A166547 Vincenzo Librandi, <a href="/A166547/b166547.txt">Table of n, a(n) for n = 1..1000</a>
%t A166547 Select[Table[100 n + 7, {n, 0, 300}], PrimeQ] (* _Vincenzo Librandi_, Jul 25 2012 *)
%o A166547 (Magma) [a: n in [0..250] | IsPrime(a) where a is 100*n+7]; // _Vincenzo Librandi_, Jul 25 2012
%Y A166547 Cf. A104044.
%K A166547 nonn,easy
%O A166547 1,1
%A A166547 _Vincenzo Librandi_, Oct 25 2009