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.

A060660 Numbers k such that sigma(x) = k has exactly 4 solutions.

Table of values

n a(n)
1 96
2 120
3 180
4 312
5 372
6 420
7 434
8 456
9 540
10 546
11 560
12 624
13 702
14 728
15 798
16 816
17 930
18 1064
19 1120
20 1170
21 1404
22 1632
23 1638
24 1674
25 1710
26 1776
27 1792
28 1944
29 2100
30 2240
31 2544
32 2560
33 2664
34 2760
35 2800
36 2844
37 2856
38 2940
39 2952
40 3000
41 3040
42 3048
43 3060
44 3080
45 3096

List of values

[96, 120, 180, 312, 372, 420, 434, 456, 540, 546, 560, 624, 702, 728, 798, 816, 930, 1064, 1120, 1170, 1404, 1632, 1638, 1674, 1710, 1776, 1792, 1944, 2100, 2240, 2544, 2560, 2664, 2760, 2800, 2844, 2856, 2940, 2952, 3000, 3040, 3048, 3060, 3080, 3096]

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

Content is available under The OEIS End-User License Agreement.