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 A045378 #10 Sep 08 2022 08:44:55
%S A045378 2,7,17,19,29,37,47,59,67,79,89,97,107,109,127,137,139,149,157,167,
%T A045378 179,197,199,227,229,239,257,269,277,307,317,337,347,349,359,367,379,
%U A045378 389,397,409,419,439,449,457,467
%N A045378 Primes congruent to {2, 4} mod 5.
%H A045378 Vincenzo Librandi, <a href="/A045378/b045378.txt">Table of n, a(n) for n = 1..1000</a>
%t A045378 Select[Prime[Range[300]],MemberQ[{2,4},Mod[#,5]]&] (* _Vincenzo Librandi_, Aug 11 2012 *)
%o A045378 (Magma) [p: p in PrimesUpTo(900) | p mod 5 in [2, 4]]; // _Vincenzo Librandi_, Aug 11 2012
%Y A045378 Cf. A000040.
%K A045378 nonn,easy
%O A045378 1,1
%A A045378 _N. J. A. Sloane_