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 A141872 #14 May 14 2025 13:17:24 %S A141872 7,83,197,311,349,463,577,653,691,881,919,1033,1109,1223,1451,1489, %T A141872 1831,1907,2287,2477,2591,2819,2857,2971,3313,3389,3541,3617,3769, %U A141872 4073,4111,4339,4567,4643,4871,4909,5023,5099,5441,5479,5669,5783,5821,5897,6011 %N A141872 Primes congruent to 7 mod 19. %H A141872 Vincenzo Librandi, <a href="/A141872/b141872.txt">Table of n, a(n) for n = 1..1000</a> %F A141872 a(n) ~ 18n log n. - _Charles R Greathouse IV_, Jul 03 2016 %t A141872 Select[Range[7,5000,19],PrimeQ[#]&] (* _Vladimir Joseph Stephan Orlovsky_, Mar 31 2011*) %t A141872 Select[Prime[Range[800]],Mod[#,19]==7&] (* _Harvey P. Dale_, May 14 2025 *) %o A141872 (Magma) [p: p in PrimesUpTo(8000) | p mod 19 eq 7 ]; // _Vincenzo Librandi_, Aug 15 2012 %o A141872 (PARI) is(n)=isprime(n) && n%19==7 \\ _Charles R Greathouse IV_, Jul 03 2016 %Y A141872 Cf. A000040, A105854, A141881, A141882, A141883. %K A141872 nonn,easy %O A141872 1,1 %A A141872 _N. J. A. Sloane_, Jul 11 2008