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 A142206 #16 Sep 08 2022 08:45:35
%S A142206 173,337,419,829,911,1321,1567,2141,2551,2633,2797,2879,3371,3617,
%T A142206 3863,4027,4273,4519,5011,5503,5749,6323,6569,6733,7307,7717,7963,
%U A142206 8209,8291,8537,8783,9029,9439,9521,9767,9931,10177,10259,11161,11243,11489,11981
%N A142206 Primes congruent to 9 mod 41.
%H A142206 Vincenzo Librandi, <a href="/A142206/b142206.txt">Table of n, a(n) for n = 1..1000</a>
%F A142206 a(n) ~ 40n log n. - _Charles R Greathouse IV_, Jul 02 2016
%t A142206 Select[Prime[Range[1500]],Mod[#,41]==9&] (* _Harvey P. Dale_, Apr 22 2011 *)
%t A142206 Select[Prime[Range[5000]],MemberQ[{9},Mod[#,41]]&] (* _Vincenzo Librandi_, Aug 23 2012 *)
%t A142206 Select[Range[9,12000,41],PrimeQ] (* _Harvey P. Dale_, Mar 12 2014 *)
%o A142206 (Magma) [p: p in PrimesUpTo(15000) | p mod 41 eq 9 ]; // _Vincenzo Librandi_, Aug 23 2012
%o A142206 (PARI) is(n)=isprime(n) && n%41==9 \\ _Charles R Greathouse IV_, Jul 02 2016
%Y A142206 Cf. A000040, A059236, A142199, A142200, A142205.
%K A142206 nonn,easy
%O A142206 1,1
%A A142206 _N. J. A. Sloane_, Jul 11 2008