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 A355631 #17 Aug 02 2022 10:52:59
%S A355631 10,11,28,29,31,32,34,35,37,82,83,85,86,88,89,91,92,94,95,97,98,100,
%T A355631 101,103,104,106,110,112,113,115,116,118,119,121,244,245,247,248,250,
%U A355631 251,253,254,256,257,259,260,262,263,265,266,268,269,271,272,274,275,277,278,280
%N A355631 List of numbers k such that A355627(k) > 0.
%C A355631 A positive integer p is in this list iff it can be written as p = Product_{i = 1..k} (3 + 1/t_i) with a positive integer k and integers t_i >= 2.
%C A355631 The sequence does not contain multiples of 3, see comments in A355627.
%H A355631 Markus Sigg, <a href="/A355631/b355631.txt">Table of n, a(n) for n = 1..13637</a>
%e A355631 10 = (3 + 1/4) * (3 + 1/13). 100 = (3 + 1/2) * (3 + 1/7) * (3 + 1/34) * (3 + 1/1133). 280 = (3 + 1/4) * (3 + 1/7) * (3 + 1/22) * (3 + 1/2614) * (3 + 1/6831253).
%o A355631 (PARI) See A355626.
%Y A355631 Cf. A001651, A355626, A355627, A355628, A355629, A355630.
%K A355631 nonn
%O A355631 1,1
%A A355631 _Markus Sigg_, Jul 15 2022