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 A059789 #5 Mar 17 2023 02:21:39 %S A059789 1,1,3,1,3,3,3,1,3,5,1,1,3,3,5,3,5,9,3,3,7,1,3,5,1,3,7,3,7,3,3,5,3,1, %T A059789 5,9,1,9,3,9,5,3,3,3,5,1,1,3,5,1,3,11,3,3,5,3,15,1,7,5,3,9,1,3,7,3,1, %U A059789 1,3,7,5,9,1,3,1,5,5,7,5,7,9,3,3,3,1,3,11,3,3,7,5,5,3,5,1,9,5,3,7,13,1,5,3 %N A059789 Distance of 2*prime(n) from previous prime. %p A059789 with(numtheory): [seq(2*ithprime(k)-prevprime(2*ithprime(k)),k=1..256)]; %Y A059789 Cf. A005382-A005385. %K A059789 nonn %O A059789 0,3 %A A059789 _Labos Elemer_, Feb 22 2001