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.

A342422 a(n) = Sum_{k=1..n} (n/gcd(k,n))^gcd(k,n).

Table of values

n a(n)
1 1
2 3
3 7
4 13
5 21
6 39
7 43
8 81
9 109
10 173
11 111
12 475
13 157
14 507
15 1107
16 1153
17 273
18 2997
19 343
20 6133
21 6685
22 3479
23 507
24 30819
25 13001
26 10533
27 44227
28 65071
29 813
30 234959
31 931
32 215553
33 368265
34 136241
35 414183
36 1991281
37 1333
38 531471
39 3215947
40 4883141
41 1641
42 12951117
43 1807
44 12735043
45 36892689
46 8401259

List of values

[1, 3, 7, 13, 21, 39, 43, 81, 109, 173, 111, 475, 157, 507, 1107, 1153, 273, 2997, 343, 6133, 6685, 3479, 507, 30819, 13001, 10533, 44227, 65071, 813, 234959, 931, 215553, 368265, 136241, 414183, 1991281, 1333, 531471, 3215947, 4883141, 1641, 12951117, 1807, 12735043, 36892689, 8401259]