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 A142203 #13 Sep 08 2022 08:45:35
%S A142203 47,211,293,457,1031,1277,1523,1933,2179,2671,2753,2917,2999,3163,
%T A142203 3491,4229,4639,4721,4967,5623,5869,6197,6361,6607,6689,7591,7673,
%U A142203 7919,8329,8821,9067,9887,10133,10789,11117,11527,12101,12347,12511,12757,13003,13249
%N A142203 Primes congruent to 6 mod 41.
%H A142203 Vincenzo Librandi, <a href="/A142203/b142203.txt">Table of n, a(n) for n = 1..1000</a>
%F A142203 a(n) ~ 40n log n. - _Charles R Greathouse IV_, Jul 03 2016
%t A142203 Select[Range[6,30000,41],PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, May 17 2011 *)
%t A142203 Select[Prime[Range[5000]],MemberQ[{6},Mod[#,41]]&] (* _Vincenzo Librandi_, Aug 23 2012 *)
%o A142203 (Magma) [p: p in PrimesUpTo(14000) | p mod 41 eq 6 ]; // _Vincenzo Librandi_, Aug 23 2012
%o A142203 (PARI) is(n)=isprime(n) && n%41==6 \\ _Charles R Greathouse IV_, Jul 03 2016
%Y A142203 Cf. A000040, A059236, A142199, A142200.
%K A142203 nonn,easy
%O A142203 1,1
%A A142203 _N. J. A. Sloane_, Jul 11 2008