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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.

A003970 Möbius transform of A003960 (with alternating zeros omitted).

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 2
6 5
7 6
8 2
9 8
10 9
11 3
12 11
13 6
14 4
15 14
16 15
17 5
18 6
19 18
20 6
21 20
22 21
23 4
24 23
25 12
26 8
27 26
28 10
29 9
30 29
31 30
32 6
33 12
34 33
35 11
36 35
37 36
38 6
39 15
40 39
41 8
42 41
43 16
44 14
45 44
46 18
47 15
48 18
49 48
50 10
51 50
52 51
53 6
54 53
55 54
56 18
57 56
58 22
59 12
60 24
61 30
62 20
63 18
64 63
65 21
66 65
67 27
68 8
69 68
70 69
71 23
72 30
73 28
74 12
75 74
76 75

List of values

[1, 1, 2, 3, 2, 5, 6, 2, 8, 9, 3, 11, 6, 4, 14, 15, 5, 6, 18, 6, 20, 21, 4, 23, 12, 8, 26, 10, 9, 29, 30, 6, 12, 33, 11, 35, 36, 6, 15, 39, 8, 41, 16, 14, 44, 18, 15, 18, 48, 10, 50, 51, 6, 53, 54, 18, 56, 22, 12, 24, 30, 20, 18, 63, 21, 65, 27, 8, 68, 69, 23, 30, 28, 12, 74, 75]

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