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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.

A372789 Number of divisors of 9n; a(n) = tau(9*n) = A000005(9*n).

Table of values

n a(n)
1 3
2 6
3 4
4 9
5 6
6 8
7 6
8 12
9 5
10 12
11 6
12 12
13 6
14 12
15 8
16 15
17 6
18 10
19 6
20 18
21 8
22 12
23 6
24 16
25 9
26 12
27 6
28 18
29 6
30 16
31 6
32 18
33 8
34 12
35 12
36 15
37 6
38 12
39 8
40 24
41 6
42 16
43 6
44 18
45 10
46 12
47 6
48 20
49 9
50 18
51 8
52 18
53 6
54 12
55 12
56 24
57 8
58 12
59 6
60 24
61 6
62 12
63 10
64 21
65 12
66 16
67 6
68 18
69 8
70 24
71 6
72 20
73 6
74 12
75 12

List of values

[3, 6, 4, 9, 6, 8, 6, 12, 5, 12, 6, 12, 6, 12, 8, 15, 6, 10, 6, 18, 8, 12, 6, 16, 9, 12, 6, 18, 6, 16, 6, 18, 8, 12, 12, 15, 6, 12, 8, 24, 6, 16, 6, 18, 10, 12, 6, 20, 9, 18, 8, 18, 6, 12, 12, 24, 8, 12, 6, 24, 6, 12, 10, 21, 12, 16, 6, 18, 8, 24, 6, 20, 6, 12, 12]

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