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 A142022 #12 Sep 08 2022 08:45:35 %S A142022 173,359,421,607,1103,1289,1723,1847,2281,2467,2591,2777,2963,3583, %T A142022 3769,4079,4327,4451,4513,4637,5009,5381,5443,5939,6311,6373,6869, %U A142022 7489,8171,8233,8419,8543,9349,9473,9721,9907,10093,10589,10651,10837,11519,11953 %N A142022 Primes congruent to 18 mod 31. %H A142022 Vincenzo Librandi, <a href="/A142022/b142022.txt">Table of n, a(n) for n = 1..1000</a> %F A142022 a(n) ~ 30n log n. - _Charles R Greathouse IV_, Jul 03 2016 %t A142022 Select[Range[18,20000,31],PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Apr 30 2011 *) %o A142022 (Magma) [p: p in PrimesUpTo(12000) | p mod 31 eq 18 ]; // _Vincenzo Librandi_, Aug 17 2012 %o A142022 (PARI) is(n)=isprime(n) && n%31==18 \\ _Charles R Greathouse IV_, Jul 03 2016 %Y A142022 Cf. A000040, A142005, A142006, A142019. %K A142022 nonn,easy %O A142022 1,1 %A A142022 _N. J. A. Sloane_, Jul 11 2008