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.

A369205 Numbers m such that A188999(A034448(m)) = k*m for some k, where A034448 and A188999 are respectively the unitary and the bi-unitary sigma function.

Table of values

n a(n)
1 1
2 2
3 9
4 10
5 15
6 18
7 21
8 30
9 40
10 42
11 60
12 120
13 288
14 567
15 630
16 720
17 756
18 1023
19 1134
20 1428
21 2046
22 2160
23 2268
24 2520
25 3024
26 3276
27 3570
28 4092
29 6048
30 8184
31 8925
32 9240
33 11424
34 11550
35 15345
36 17850
37 18144
38 30690
39 35700
40 46200
41 57120
42 85680
43 147312
44 285600
45 491040
46 556920

List of values

[1, 2, 9, 10, 15, 18, 21, 30, 40, 42, 60, 120, 288, 567, 630, 720, 756, 1023, 1134, 1428, 2046, 2160, 2268, 2520, 3024, 3276, 3570, 4092, 6048, 8184, 8925, 9240, 11424, 11550, 15345, 17850, 18144, 30690, 35700, 46200, 57120, 85680, 147312, 285600, 491040, 556920]