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 A045457 #23 Sep 08 2022 08:44:56
%S A045457 5,19,29,59,79,89,109,139,149,179,199,229,239,269,349,359,379,389,409,
%T A045457 419,439,449,479,499,509,569,599,619,659,709,719,739,769,809,829,839,
%U A045457 859,919,929,1009,1019,1039,1049,1069,1109,1129,1229,1249,1259,1279
%N A045457 Primes congruent to {0, 4} mod 5.
%C A045457 Being a subset of A141158, this is also a subset of the primes of form x^2 - 5*y^2. - _Tito Piezas III_, Dec 28 2008
%C A045457 Apparently primes p such that 5 | tau(p), where Ramanujan's tau is A000594. - _Charles R Greathouse IV_, Jul 08 2013
%H A045457 Vincenzo Librandi, <a href="/A045457/b045457.txt">Table of n, a(n) for n = 1..1000</a>
%t A045457 Select[Prime@Range[210], MemberQ[{0, 4}, Mod[ #, 5]] &] (* _Ray Chandler_, Nov 07 2006 *)
%o A045457 (Magma) [ p: p in PrimesUpTo(1300) | p mod 5 in {0, 4} ]; // _Vincenzo Librandi_, Aug 13 2012
%o A045457 (PARI) is(n)=n==5 || (n%5==4 && isprime(n)) \\ _Charles R Greathouse IV_, Jul 08 2013
%Y A045457 Same as A030433 prefixed with 5.
%Y A045457 Cf. A000040.
%K A045457 nonn,easy
%O A045457 1,1
%A A045457 _N. J. A. Sloane_
%E A045457 Extended by _Ray Chandler_, Nov 07 2006