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 A325441 #4 May 02 2019 16:04:03
%S A325441 2,5,7,8,11,17,19,23,25,26,27,29,31,35,38,39,41,43,44,47,53,55,59,62,
%T A325441 63,65,67,71,73,79,83,89,91,95,97,98,99,101,103,107,110,111,113,115,
%U A325441 119,121,125,127,131,134,135,137,139,143,146,147,149,151,152,153
%N A325441 Complement of A325440.
%C A325441 These are the numbers 2x-1 and 3x-1 as x ranges through the numbers x>1 in A325440.
%H A325441 Clark Kimberling, <a href="/A325441/b325441.txt">Table of n, a(n) for n = 1..10000</a>
%t A325441 a = {1}; Do[AppendTo[a, NestWhile[# + 1 &, Last[a] + 1, Apply[Or,
%t A325441 Map[MemberQ[a, #] &, Select[Flatten[{(#+1)/2, (#+1)/3}],
%t A325441 IntegerQ]]] &]], {150}]; a (* A325440 *)
%t A325441 Complement[Range[Last[a]], a] (* A325441 *)
%t A325441 (* _Peter J. C. Moses_, Apr 25 2019 *)
%Y A325441 Cf. A325417, A325440.
%K A325441 nonn,easy
%O A325441 1,1
%A A325441 _Clark Kimberling_, May 02 2019