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 A338356 #10 Nov 03 2020 22:07:03 %S A338356 1,2,3,5,7,9,13,16,20,23,27,33,36,42,46,49,53,60,66,69,75,80,83,89,93, %T A338356 99,107,112,115,119,122,127,140,145,151,154,163,166,173,179,183,190, %U A338356 196,199,210,213,217,220,231,242,246,249,254,261,264,275,281,287,294,297,303,307,310,321 %N A338356 Indices of records in A283312. %C A338356 The records themselves are essentially twice the primes (A001747). %H A338356 N. J. A. Sloane, <a href="/A338356/b338356.txt">Table of n, a(n) for n = 1..7100</a> %Y A338356 Cf. A001747, A283312. %K A338356 nonn %O A338356 1,2 %A A338356 _N. J. A. Sloane_, Nov 03 2020