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 A142328 #13 Oct 01 2024 07:24:30
%S A142328 31,211,571,661,751,1021,1201,1291,1381,1471,1741,1831,2011,2281,2371,
%T A142328 2551,2731,3001,3181,3271,3361,3541,3631,4261,4441,4621,4801,5431,
%U A142328 5521,5701,5791,5881,6151,6421,6691,6781,6871,6961,7321,7411,7591,7681,7951,8221
%N A142328 Primes congruent to 31 mod 45.
%H A142328 Vincenzo Librandi, <a href="/A142328/b142328.txt">Table of n, a(n) for n = 1..1000</a>
%F A142328 a(n) ~ 24n log n. - _Charles R Greathouse IV_, Jul 02 2016
%t A142328 Select[Prime[Range[1200]],MemberQ[{31},Mod[#,45]]&] (* _Vincenzo Librandi_, Aug 26 2012 *)
%o A142328 (Magma) [p: p in PrimesUpTo(10000) | p mod 45 eq 31]; // _Vincenzo Librandi_, Aug 26 2012
%o A142328 (PARI) is(n)=isprime(n) && n%45==31 \\ _Charles R Greathouse IV_, Jul 02 2016
%Y A142328 Cf. A000040.
%K A142328 nonn,easy
%O A142328 1,1
%A A142328 _N. J. A. Sloane_, Jul 11 2008