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 A234523 #4 Jan 18 2014 13:37:32 %S A234523 4,6,8,12,18,24,30,36,40,48,60,72,84,90,96,120,126,144,168,180,192, %T A234523 210,216,240,252,264,270,288,300,360,420,432,480,504,540,600,630,660, %U A234523 720,840,900,960,1008,1080,1260,1320,1440,1512,1680,1800,1848,1980,2016 %N A234523 Sequence of numbers from A234520 such that A234520(n) > A234520(k) for all k < n. %C A234523 A234520 = composite numbers n sorted by decreasing values of number beta(n) = sigma(n)^(1/n) - (n+1)^(1/n), where sigma(n) = A000203(n) = the sum of divisors of n. %Y A234523 Cf. A234515, A234516, A234517, A234518, A234519, A234520, A234521, A234522, A234524. %K A234523 nonn %O A234523 1,1 %A A234523 _Jaroslav Krizek_, Jan 14 2014