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 A141886 #12 Sep 08 2022 08:45:35 %S A141886 17,37,97,137,157,197,257,277,317,337,397,457,557,577,617,677,757,797, %T A141886 857,877,937,977,997,1097,1117,1217,1237,1277,1297,1597,1637,1657, %U A141886 1697,1777,1877,1997,2017,2137,2237,2297,2357,2377,2417,2437,2477,2557,2617,2657 %N A141886 Primes congruent to 17 mod 20. %H A141886 Vincenzo Librandi, <a href="/A141886/b141886.txt">Table of n, a(n) for n = 1..1000</a> %F A141886 a(n) ~ 8n log n. - _Charles R Greathouse IV_, Jul 02 2016 %t A141886 Select[Range[17,5000,20],PrimeQ[#]&] (* _Vladimir Joseph Stephan Orlovsky_, Mar 31 2011*) %o A141886 (Magma) [p: p in PrimesUpTo(3000) | p mod 20 eq 17 ]; // _Vincenzo Librandi_, Aug 16 2012 %o A141886 (PARI) is(n)=isprime(n) && n%20==17 \\ _Charles R Greathouse IV_, Jul 02 2016 %Y A141886 Cf. A000040, A105854, A141881, A141882, A141883. %K A141886 nonn,easy %O A141886 1,1 %A A141886 _N. J. A. Sloane_, Jul 11 2008