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 A142011 #16 Sep 08 2022 08:45:35 %S A142011 7,131,193,317,379,503,751,937,1061,1123,1433,1619,1867,2053,2239, %T A142011 2549,2797,3169,3541,3727,3851,4099,4409,4657,4967,5153,5711,5897, %U A142011 6269,6703,6827,7013,7757,8191,8377,8501,8563,9059,9431,9679,9803,10733,11353,12097 %N A142011 Primes congruent to 7 mod 31. %H A142011 Vincenzo Librandi, <a href="/A142011/b142011.txt">Table of n, a(n) for n = 1..1000</a> %F A142011 a(n) ~ 30n log n. - _Charles R Greathouse IV_, Jul 03 2016 %t A142011 Select[Range[7,20000,31],PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Apr 20 2011 *) %o A142011 (Magma) [ p: p in PrimesUpTo(30000) | p mod 31 eq 7 ]; // _Vincenzo Librandi_, Apr 20 2011 %o A142011 (PARI) is(n)=isprime(n) && n%31==7 \\ _Charles R Greathouse IV_, Jul 03 2016 %Y A142011 Cf. A000040, A142005, A142006. %K A142011 nonn,easy %O A142011 1,1 %A A142011 _N. J. A. Sloane_, Jul 11 2008