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 A045471 #22 Apr 29 2025 04:54:03 %S A045471 11,53,67,109,137,151,179,193,263,277,347,389,431,487,557,571,599,613, %T A045471 641,683,739,809,823,907,977,991,1019,1033,1061,1103,1117,1187,1201, %U A045471 1229,1327,1439,1453,1481,1523,1579,1607,1621,1663,1733,1747,1789,1831,1873 %N A045471 Primes congruent to 4 mod 7. %C A045471 Primes congruent to 11 mod 14. - _Chai Wah Wu_, Apr 28 2025 %H A045471 Vincenzo Librandi, <a href="/A045471/b045471.txt">Table of n, a(n) for n = 1..1000</a> %t A045471 Select[Range[4, 50000, 7], PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Jun 13 2011 *) %o A045471 (Magma) [ p: p in PrimesUpTo(11000) | p mod 7 eq 4 ]; // _Vincenzo Librandi_, Aug 13 2012 %o A045471 (PARI) is(n)=isprime(n) && n%7==4 \\ _Charles R Greathouse IV_, Jul 01 2016 %Y A045471 Cf. A042990 (complement), A045458, A045473. %K A045471 nonn,easy %O A045471 1,1 %A A045471 _N. J. A. Sloane_