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 A338352 #5 Nov 01 2020 23:46:14 %S A338352 2,4,6,8,13,15,20,22,27,34,36,42,46,48,53,61,66,68,75,80,82,89,94,99, %T A338352 108,112,114,119,121,127,141,146,151,154,165,167,173,179,184,191,198, %U A338352 200,211,213,218,220,233,244,246,249,256,261,263,276,283,289,294,296,303,307,309,324 %N A338352 Indices of primes in A280985. %H A338352 N. J. A. Sloane, <a href="/A338352/b338352.txt">Table of n, a(n) for n = 1..7096</a> %Y A338352 Cf. A280985. %K A338352 nonn %O A338352 1,1 %A A338352 _N. J. A. Sloane_, Nov 01 2020