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 A308471 #15 May 31 2019 11:33:53 %S A308471 1,4,6,12,24,30,60,120,180,210,360,420,840,1260,2520,4620,9240,13860, %T A308471 27720,55440,60060,120120,180180,360360,720720,1441440,1801800, %U A308471 2042040,3063060,6126120,12252240,24504480,30630600,36756720,38798760 %N A308471 Lowest outliers for A057660. %C A308471 A057660(n) is a multiplicative function bounded above by n*(n-1)+1, which is reached whenever n is 1 or prime. These numbers are the n such that the ratio between A057660(n) and the upper bound reaches a record low. %C A308471 Motivated by _Daniel Forgues_'s conjecture that this sequence consists of 4 and A051451. %C A308471 A subsequence of A025487. %H A308471 Charlie Neder, <a href="/A308471/b308471.txt">Table of n, a(n) for n = 1..215</a> %e A308471 A057660(60060)/(60060*60059+1) = 1211716737/3607143541 ~ 0.3359214, and every number less than 60060 has a ratio > 0.34, so 60060 is in this sequence. %Y A308471 Cf. A057660, A025487, A051451. %K A308471 nonn %O A308471 1,2 %A A308471 _Charlie Neder_, May 29 2019