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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.

A316498 Number of normal subgroups of the special linear group SL(2, Z_n).

Table of values

n a(n)
1 1
2 3
3 4
4 7
5 3
6 13
7 3
8 15
9 6
10 10
11 3
12 32
13 3
14 10
15 13
16 26
17 3
18 20
19 3
20 25
21 13
22 10
23 3
24 75
25 5
26 10
27 8
28 25
29 3
30 48
31 3
32 37
33 13
34 10
35 10
36 50
37 3
38 10
39 13
40 60
41 3
42 48
43 3
44 25
45 20
46 10
47 3
48 135
49 5
50 17
51 13
52 25
53 3
54 27
55 10
56 60
57 13
58 10
59 3
60 127
61 3
62 10
63 20
64 48
65 10
66 48
67 3
68 25
69 13
70 38

List of values

[1, 3, 4, 7, 3, 13, 3, 15, 6, 10, 3, 32, 3, 10, 13, 26, 3, 20, 3, 25, 13, 10, 3, 75, 5, 10, 8, 25, 3, 48, 3, 37, 13, 10, 10, 50, 3, 10, 13, 60, 3, 48, 3, 25, 20, 10, 3, 135, 5, 17, 13, 25, 3, 27, 10, 60, 13, 10, 3, 127, 3, 10, 20, 48, 10, 48, 3, 25, 13, 38]

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

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