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 A141960 #12 Sep 08 2022 08:45:35 %S A141960 19,73,127,181,397,613,829,883,937,991,1153,1423,1531,1693,1747,1801, %T A141960 2017,2179,2287,2341,2503,2557,2719,3259,3313,3529,3583,3637,3691, %U A141960 3853,3907,4177,4231,4339,4447,4663,4933,4987,5419,5527,5581,5689,5743,5851,6067 %N A141960 Primes congruent to 19 mod 27. %H A141960 Vincenzo Librandi, <a href="/A141960/b141960.txt">Table of n, a(n) for n = 1..1000</a> %F A141960 a(n) ~ 18n log n. - _Charles R Greathouse IV_, Jul 03 2016 %t A141960 Select[Range[19, 30000, 27], PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Jun 21 2011 *) %o A141960 (Magma) [p: p in PrimesUpTo(7000) | p mod 27 eq 19 ]; // _Vincenzo Librandi_, Aug 16 2012 %o A141960 (PARI) is(n)=isprime(n) && n%27==19 \\ _Charles R Greathouse IV_, Jul 03 2016 %Y A141960 Cf. A000040, A141963, A141964, A141965. %K A141960 nonn,easy %O A141960 1,1 %A A141960 _N. J. A. Sloane_, Jul 11 2008