A234521 Sequence of numbers from A234519 such that A234519(n) > A234519(k) for all k < n.

2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 24, 28, 30, 32, 36, 40, 42, 44, 48, 50, 54, 56, 60, 64, 66, 72, 78, 80, 84, 90, 96, 100, 102, 108, 112, 120, 126, 132, 144, 150, 156, 160, 168, 180, 192, 200, 204, 210, 216, 220, 224, 228, 240, 252, 264, 276, 280, 288, 300

Offset

1,1

Comments

A234519 = natural numbers n sorted by decreasing values of number k(n) = sigma(n)^(1/n), where sigma(n) = A000203(n) = the sum of divisors of n.

Conjecture: a(n) = supersequence of A002093 - highly abundant numbers - numbers n such that sigma(n) > sigma(m) for all m < n.

Links

Table of n, a(n) for n=1..59.

Crossrefs

Cf. A234515, A234516, A234517, A234518, A234519, A234520, A234522, A234523, A234524.

Sequence in context: A240171 A221284 A272670 * A085125 A251237 A194402

Adjacent sequences: A234518 A234519 A234520 * A234522 A234523 A234524

Keyword

nonn

Author

Jaroslav Krizek, Jan 13 2014

Status

approved