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.

A295315 a(n) = phi(sigma(n)) / gcd(sigma(n), phi(sigma(n))).

Table of values

n a(n)
1 1
2 2
3 1
4 6
5 1
6 1
7 1
8 8
9 12
10 1
11 1
12 3
13 3
14 1
15 1
16 30
17 1
18 8
19 2
20 2
21 1
22 1
23 1
24 4
25 30
26 2
27 2
28 3
29 4
30 1
31 1
32 4
33 1
34 1
35 1
36 72
37 9
38 4
39 3
40 4
41 2
42 1
43 5
44 2
45 4
46 1
47 1
48 15
49 12
50 20
51 1
52 3
53 1
54 4
55 1
56 4
57 2
58 4
59 4
60 2
61 15
62 1
63 6
64 126
65 2
66 1
67 8
68 2
69 1
70 1
71 1
72 32
73 18
74 6
75 15
76 12
77 1
78 2
79 2
80 10
81 10
82 2
83 2
84 3
85 1
86 10
87 4
88 4
89 4
90 4
91 3
92 2
93 1
94 1
95 4
96 2
97 3
98 12
99 4

List of values

[1, 2, 1, 6, 1, 1, 1, 8, 12, 1, 1, 3, 3, 1, 1, 30, 1, 8, 2, 2, 1, 1, 1, 4, 30, 2, 2, 3, 4, 1, 1, 4, 1, 1, 1, 72, 9, 4, 3, 4, 2, 1, 5, 2, 4, 1, 1, 15, 12, 20, 1, 3, 1, 4, 1, 4, 2, 4, 4, 2, 15, 1, 6, 126, 2, 1, 8, 2, 1, 1, 1, 32, 18, 6, 15, 12, 1, 2, 2, 10, 10, 2, 2, 3, 1, 10, 4, 4, 4, 4, 3, 2, 1, 1, 4, 2, 3, 12, 4]