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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.

A276681 Number of divisors of the n-th octagonal number.

Table of values

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

List of values

[1, 4, 4, 8, 4, 12, 4, 10, 9, 16, 4, 16, 4, 20, 8, 12, 6, 24, 8, 16, 8, 16, 4, 40, 6, 16, 8, 16, 8, 40, 8, 14, 8, 24, 8, 24, 4, 24, 16, 20, 6, 32, 4, 32, 24, 20, 4, 24, 12, 24, 8, 32, 4, 56, 8, 20, 12, 16, 12, 32, 4, 20, 24, 32, 8, 48, 4, 16, 16, 48, 4, 30, 8]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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