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 A142034 #12 Sep 08 2022 08:45:35 %S A142034 61,433,557,619,743,929,991,1301,1487,1549,2293,2417,2789,2851,3037, %T A142034 3347,3533,3719,3967,4091,4153,4339,4463,4649,5021,5393,5641,5827, %U A142034 6199,6323,6571,7129,7253,7687,7873,8059,8369,8431,8741,8803,9547,9733,9857,10477 %N A142034 Primes congruent to 30 mod 31. %H A142034 Vincenzo Librandi, <a href="/A142034/b142034.txt">Table of n, a(n) for n = 1..1000</a> %F A142034 a(n) ~ 30n log n. - _Charles R Greathouse IV_, Jul 03 2016 %t A142034 Select[Range[30,20000,31],PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Apr 30 2011 *) %o A142034 (Magma) [p: p in PrimesUpTo(12000) | p mod 31 eq 30 ]; // _Vincenzo Librandi_, Aug 18 2012 %o A142034 (PARI) is(n)=isprime(n) && n%31==30 \\ _Charles R Greathouse IV_, Jul 03 2016 %Y A142034 Cf. A000040, A142005, A142006, A142033. %K A142034 nonn,easy %O A142034 1,1 %A A142034 _N. J. A. Sloane_, Jul 11 2008