cp's OEIS Frontend

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.

A290490 Numbers k such that (sum of proper unitary divisors of k) > (sum of proper unitary divisors of m) for all m < k.

Table of values

n a(n)
1 1
2 2
3 6
4 10
5 14
6 18
7 22
8 26
9 30
10 42
11 60
12 66
13 78
14 102
15 114
16 138
17 150
18 174
19 186
20 210
21 330
22 390
23 462
24 510
25 546
26 570
27 690
28 798
29 858
30 870
31 930
32 1050
33 1110
34 1218
35 1230
36 1290
37 1410
38 1470
39 1590
40 1722
41 1770
42 1830
43 2010
44 2130
45 2190
46 2310
47 2730
48 3570
49 3990
50 4290
51 4830
52 5610
53 6006
54 6090
55 6510
56 7410
57 7590
58 7770

List of values

[1, 2, 6, 10, 14, 18, 22, 26, 30, 42, 60, 66, 78, 102, 114, 138, 150, 174, 186, 210, 330, 390, 462, 510, 546, 570, 690, 798, 858, 870, 930, 1050, 1110, 1218, 1230, 1290, 1410, 1470, 1590, 1722, 1770, 1830, 2010, 2130, 2190, 2310, 2730, 3570, 3990, 4290, 4830, 5610, 6006, 6090, 6510, 7410, 7590, 7770]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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