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 A052233 #11 Jun 07 2018 02:55:36 %S A052233 167,373,557,607,947,1777,2351,2897,4507,5081,5443,5471,6067,7237, %T A052233 8747,9343,9967,10903,11087,12491,12697,13037,14051,15767,15817,16001, %U A052233 16363,16547,16937,16987,17327,19483,21277,24971,26687,26921,30197,30637 %N A052233 Primes p from A031924 such that A052180(primepi(p)) = 13. %Y A052233 Cf. A031924, A031925, A052180. %K A052233 nonn %O A052233 1,1 %A A052233 _Labos Elemer_, Feb 01 2000