A234523 Sequence of numbers from A234520 such that A234520(n) > A234520(k) for all k < n.

4, 6, 8, 12, 18, 24, 30, 36, 40, 48, 60, 72, 84, 90, 96, 120, 126, 144, 168, 180, 192, 210, 216, 240, 252, 264, 270, 288, 300, 360, 420, 432, 480, 504, 540, 600, 630, 660, 720, 840, 900, 960, 1008, 1080, 1260, 1320, 1440, 1512, 1680, 1800, 1848, 1980, 2016

Offset

1,1

Comments

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.

Links

Table of n, a(n) for n=1..53.

Crossrefs

Cf. A234515, A234516, A234517, A234518, A234519, A234520, A234521, A234522, A234524.

Sequence in context: A161219 A310664 A161785 * A178549 A244408 A023374

Adjacent sequences: A234520 A234521 A234522 * A234524 A234525 A234526

Keyword

nonn

Author

Jaroslav Krizek, Jan 14 2014

Status

approved