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 A052238 #9 May 30 2018 03:56:23 %S A052238 941,1217,1907,3607,4391,6047,6367,8117,8713,9127,9221,10093,10601, %T A052238 11981,12577,14741,19571,19753,23203,23893,24677,25367,28723,29921, %U A052238 36131,36313,39857,41143,42937,51907,52183,52691,54667,55633,58211 %N A052238 Primes p from A031924 such that A052180(p) = 23. %Y A052238 Cf. A031924, A031925, A052180. %K A052238 nonn %O A052238 1,1 %A A052238 _Labos Elemer_, Feb 01 2000