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 A142107 #14 Jun 29 2025 21:29:27
%S A142107 23,59,131,167,239,311,347,383,419,491,563,599,743,887,1031,1103,1283,
%T A142107 1319,1427,1499,1571,1607,1787,1823,1931,2003,2039,2111,2399,2543,
%U A142107 2579,2687,2903,2939,3011,3083,3119,3191,3299,3371,3407,3623,3659,3767,3803,3911
%N A142107 Primes congruent to 23 mod 36.
%H A142107 Vincenzo Librandi, <a href="/A142107/b142107.txt">Table of n, a(n) for n = 1..1000</a>
%t A142107 Select[Range[23, 20000, 36], PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Jul 02 2011 *)
%t A142107 Select[Prime[Range[1500]],MemberQ[{23},Mod[#,36]]&] (* _Vincenzo Librandi_, Aug 19 2012 *)
%o A142107 (PARI) select(n->n%36==23,primes(1000)) \\ _Charles R Greathouse IV_, Jul 02 2011
%o A142107 (Magma) [p: p in PrimesUpTo(5000) | p mod 36 eq 23 ]; // _Vincenzo Librandi_, Aug 19 2012
%Y A142107 Cf. A000040.
%K A142107 nonn,easy
%O A142107 1,1
%A A142107 _N. J. A. Sloane_, Jul 11 2008