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 A141930 #12 Sep 08 2022 08:45:35 %S A141930 29,79,179,229,379,479,829,929,1129,1229,1279,1429,1579,1879,1979, %T A141930 2029,2129,2179,2579,2729,2879,3079,3229,3329,3529,3779,3929,4079, %U A141930 4129,4229,4679,4729,5179,5279,5479,5779,5879,6029,6079,6229,6329,6379,6529,6679 %N A141930 Primes congruent to 4 mod 25. %H A141930 Vincenzo Librandi, <a href="/A141930/b141930.txt">Table of n, a(n) for n = 1..1000</a> %F A141930 a(n) ~ 20n log n. - _Charles R Greathouse IV_, Jul 02 2016 %t A141930 Select[Range[4, 20000, 25], PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Jun 18 2011 *) %o A141930 (Magma) [p: p in PrimesUpTo(8000) | p mod 25 eq 4 ]; // _Vincenzo Librandi_, Aug 16 2012 %o A141930 (PARI) is(n)=isprime(n) && n%25==4 \\ _Charles R Greathouse IV_, Jul 02 2016 %Y A141930 Cf. A000040. %K A141930 nonn,easy %O A141930 1,1 %A A141930 _N. J. A. Sloane_, Jul 11 2008