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 A045323 #16 Jun 26 2022 23:54:03
%S A045323 2,3,7,11,17,19,23,31,41,43,47,59,67,71,73,79,83,89,97,103,107,113,
%T A045323 127,131,137,139,151,163,167,179,191,193,199,211,223,227,233,239,241,
%U A045323 251,257,263,271,281,283,307,311
%N A045323 Primes congruent to {1, 2, 3, 7} (mod 8).
%C A045323 Numbers x such that x^4 = 4 has a solution mod p.
%H A045323 Ray Chandler, <a href="/A045323/b045323.txt">Table of n, a(n) for n = 1..10000</a> (first 1000 terms from Vincenzo Librandi)
%t A045323 Select[Prime[Range[300]],MemberQ[{1,2,3,7},Mod[#,8]]&] (* _Vincenzo Librandi_, Aug 07 2012 *)
%o A045323 (Magma) [ p: p in PrimesUpTo(400) | p mod 8 in {1, 2, 3, 7} ]; // _Vincenzo Librandi_, Aug 07 2012
%o A045323 (Haskell)
%o A045323 a045323 n = a045323_list !! (n-1)
%o A045323 a045323_list = filter ((== 1). a010051) a004776_list
%o A045323 -- _Reinhard Zumkeller_, Aug 17 2012
%Y A045323 Cf. A000040, A010051.
%Y A045323 Subsequence of A004776; see also A007521.
%K A045323 nonn,easy
%O A045323 1,1
%A A045323 _N. J. A. Sloane_