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 A142890 #7 Sep 08 2022 08:45:37
%S A142890 2,191,317,443,569,821,947,1451,2081,2207,2333,2459,2711,2837,2963,
%T A142890 3089,3467,3593,3719,4349,5231,5483,5861,5987,6113,6491,6869,7121,
%U A142890 7247,7499,7877,9011,9137,9767,10271,11027,11279,11657,11783,11909,12161,12413,12539
%N A142890 Primes congruent to 2 mod 63.
%H A142890 Vincenzo Librandi, <a href="/A142890/b142890.txt">Table of n, a(n) for n = 1..1000</a>
%t A142890 Select[Prime[Range[1900]], MemberQ[{2}, Mod[#, 63]] &] (* _Vincenzo Librandi_, Sep 06 2012 *)
%o A142890 (Magma) [p: p in PrimesUpTo(13000) | p mod 63 eq 2 ] ; // _Vincenzo Librandi_, Sep 06 2012
%Y A142890 Cf. A000040.
%K A142890 nonn,easy
%O A142890 1,1
%A A142890 _N. J. A. Sloane_, Jul 11 2008