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.

A369291 Array read by antidiagonals: T(n,k) = phi(k^n-1)/n, where phi is Euler's totient function (A000010), n >= 1, k >= 2.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 2
6 2
7 2
8 4
9 4
10 2
11 4
12 4
13 12
14 8
15 6
16 2
17 12
18 20
19 32
20 22
21 6
22 6
23 8
24 56
25 48
26 120
27 48
28 18
29 4
30 18
31 36
32 216
33 280
34 288
35 156
36 16
37 6
38 16
39 144
40 160
41 1240
42 720
43 1512
44 320
45 48
46 4
47 30
48 96
49 432
50 1120
51 5040
52 5580
53 4096
54 1008
55 60
56 10
57 16
58 216
59 640
60 5400
61 6048
62 31992
63 14976
64 15552
65 2640
66 176

List of values

[1, 1, 1, 2, 2, 2, 2, 4, 4, 2, 4, 4, 12, 8, 6, 2, 12, 20, 32, 22, 6, 6, 8, 56, 48, 120, 48, 18, 4, 18, 36, 216, 280, 288, 156, 16, 6, 16, 144, 160, 1240, 720, 1512, 320, 48, 4, 30, 96, 432, 1120, 5040, 5580, 4096, 1008, 60, 10, 16, 216, 640, 5400, 6048, 31992, 14976, 15552, 2640, 176]