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 A140732 #20 Sep 08 2022 08:45:34
%S A140732 71,139,281,349,491,701,769,911,1399,1609,2029,2239,2381,2591,2659,
%T A140732 2801,3011,3079,3221,3499,3709,3851,3919,4129,4271,4339,4481,4549,
%U A140732 4691,4759,4969,5179,5531,5741,6229,6581,6791,7001,7069,7211,7489,7699,7841,8329
%N A140732 Primes congruent to 71 or 139 mod 210.
%H A140732 Vincenzo Librandi, <a href="/A140732/b140732.txt">Table of n, a(n) for n = 1..1000</a>
%t A140732 Select[Prime[Range[1100]], MemberQ[{71, 139}, Mod[#, 210]] &] (* _Vincenzo Librandi_, Aug 15 2012 *)
%t A140732 Select[Riffle[Range[71,9000,210],Range[139,9000,210]],PrimeQ] (* _Harvey P. Dale_, Jun 01 2017 *)
%o A140732 (Magma) [p: p in PrimesUpTo(9000)|p mod 210 in {71,139}] // _Vincenzo Librandi_, Dec 18 2010
%Y A140732 Cf. A000040.
%K A140732 nonn,easy
%O A140732 1,1
%A A140732 _Juri-Stepan Gerasimov_, Jul 28 2008
%E A140732 4691 added by _D. S. McNeil_, Dec 10 2009