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.

A009195 a(n) = gcd(n, phi(n)).

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 1
6 2
7 1
8 4
9 3
10 2
11 1
12 4
13 1
14 2
15 1
16 8
17 1
18 6
19 1
20 4
21 3
22 2
23 1
24 8
25 5
26 2
27 9
28 4
29 1
30 2
31 1
32 16
33 1
34 2
35 1
36 12
37 1
38 2
39 3
40 8
41 1
42 6
43 1
44 4
45 3
46 2
47 1
48 16
49 7
50 10
51 1
52 4
53 1
54 18
55 5
56 8
57 3
58 2
59 1
60 4
61 1
62 2
63 9
64 32
65 1
66 2
67 1
68 4
69 1
70 2
71 1
72 24
73 1
74 2
75 5
76 4
77 1
78 6
79 1
80 16
81 27
82 2
83 1
84 12
85 1
86 2
87 1
88 8
89 1
90 6
91 1
92 4
93 3
94 2
95 1
96 32
97 1
98 14
99 3
100 20

List of values

[1, 1, 1, 2, 1, 2, 1, 4, 3, 2, 1, 4, 1, 2, 1, 8, 1, 6, 1, 4, 3, 2, 1, 8, 5, 2, 9, 4, 1, 2, 1, 16, 1, 2, 1, 12, 1, 2, 3, 8, 1, 6, 1, 4, 3, 2, 1, 16, 7, 10, 1, 4, 1, 18, 5, 8, 3, 2, 1, 4, 1, 2, 9, 32, 1, 2, 1, 4, 1, 2, 1, 24, 1, 2, 5, 4, 1, 6, 1, 16, 27, 2, 1, 12, 1, 2, 1, 8, 1, 6, 1, 4, 3, 2, 1, 32, 1, 14, 3, 20]