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 A045399 #16 Sep 08 2022 08:44:56
%S A045399 3,5,7,13,17,19,31,41,47,59,61,73,83,89,97,101,103,131,139,157,167,
%T A045399 173,181,199,223,227,229,241,251,257,269,271,283,293,307,311,313,349,
%U A045399 353,367,383,397,409,419,433,439
%N A045399 Primes congruent to {0, 3, 5, 6} mod 7.
%C A045399 Primes p such that A140686(p) = 0. - _Michael Somos_, Feb 12 2011
%C A045399 Primes (along with 2) which cannot be written in the form a^2 + 7*b^2, where a > 0, b > 0. - _V. Raman_, Sep 08 2012
%H A045399 Vincenzo Librandi, <a href="/A045399/b045399.txt">Table of n, a(n) for n = 1..1000</a>
%t A045399 Select[Prime[Range[300]],MemberQ[{0,3,5,6},Mod[#,7]]&] (* _Vincenzo Librandi_, Aug 12 2012 *)
%o A045399 (Magma) [ p: p in PrimesUpTo(600) | p mod 7 in {0, 3, 5, 6} ]; // _Vincenzo Librandi_, Aug 12 2012
%Y A045399 Cf. A000040.
%K A045399 nonn,easy
%O A045399 1,1
%A A045399 _N. J. A. Sloane_