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.

A045795 Unitary-sigma sigma multiply perfect numbers: numbers k such that A061765(k) = m*k for some integer m.

Table of values

n a(n)
1 1
2 2
3 4
4 8
5 10
6 16
7 24
8 27
9 30
10 54
11 63
12 64
13 108
14 126
15 165
16 238
17 252
18 360
19 432
20 504
21 512
22 660
23 864
24 952
25 1008
26 1536
27 1728
28 2016
29 2464
30 2640
31 4032
32 4096
33 5544
34 10560
35 13824
36 16728
37 17640
38 23040
39 32256
40 45500
41 47360
42 60928
43 65536
44 110592
45 152064
46 153600

List of values

[1, 2, 4, 8, 10, 16, 24, 27, 30, 54, 63, 64, 108, 126, 165, 238, 252, 360, 432, 504, 512, 660, 864, 952, 1008, 1536, 1728, 2016, 2464, 2640, 4032, 4096, 5544, 10560, 13824, 16728, 17640, 23040, 32256, 45500, 47360, 60928, 65536, 110592, 152064, 153600]

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

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