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 A050653 #6 Oct 14 2019 23:58:15 %S A050653 20,22,24,25,26,28,30,32,34,35,36,38,50,52,54,55,56,58,60,62,64,65,66, %T A050653 68,80,82,84,85,86,88,150,152,154,155,156,158,160,162,164,165,166,168, %U A050653 170,172,174,175,176,178,230,232,234,235,236,238,250,252,254,255,256 %N A050653 Numbers n such that number of primes produced according to rules stipulated in Honaker's A048853 is 2. %e A050653 Altering a(1)=20 gives 2 primes: 23 and 29. %Y A050653 Cf. A048853, A050662, A050664. %K A050653 nonn,base %O A050653 1,1 %A A050653 _Patrick De Geest_, Jul 15 1999