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 A050652 #6 Oct 14 2019 23:58:28 %S A050652 90,92,94,95,96,98,110,112,114,115,116,118,120,122,124,125,126,128, %T A050652 140,142,144,145,146,148,180,182,184,185,186,188,210,212,214,215,216, %U A050652 218,240,242,244,245,246,248,290,292,294,295,296,298,300,302,304,305,306 %N A050652 Numbers n such that number of primes produced according to rules stipulated in Honaker's A048853 is 1. %e A050652 Altering a(1)=90 gives 1 prime: 97. %Y A050652 Cf. A048853, A050662, A050663. %K A050652 nonn,base %O A050652 1,1 %A A050652 _Patrick De Geest_, Jul 15 1999