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 A050655 #7 Oct 14 2019 23:57:39 %S A050655 1,4,6,8,9,10,12,14,15,16,18,97,100,102,104,105,106,108,190,192,194, %T A050655 195,196,198,389,659,689,743,820,822,824,825,826,828,953,989,1480, %U A050655 1482,1484,1485,1486,1488,1870,1872,1874,1875,1876,1878,2080,2082,2084,2085 %N A050655 Numbers n such that number of primes produced according to rules stipulated in Honaker's A048853 is 4. %e A050655 Altering a(13)=100 gives 4 primes: 101, 103, 107 and 109. %Y A050655 Cf. A048853, A050662, A050666. %K A050655 nonn,base %O A050655 1,2 %A A050655 _Patrick De Geest_, Jul 15 1999