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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.

A203908 Multiplicative with a(p^e) = abs(p-e).

Table of values

n a(n)
1 1
2 1
3 2
4 0
5 4
6 2
7 6
8 1
9 1
10 4
11 10
12 0
13 12
14 6
15 8
16 2
17 16
18 1
19 18
20 0
21 12
22 10
23 22
24 2
25 3
26 12
27 0
28 0
29 28
30 8
31 30
32 3
33 20
34 16
35 24
36 0
37 36
38 18
39 24
40 4
41 40
42 12
43 42
44 0
45 4
46 22
47 46
48 4
49 5
50 3
51 32
52 0
53 52
54 0
55 40
56 6
57 36
58 28
59 58
60 0
61 60
62 30
63 6
64 4
65 48
66 20
67 66
68 0
69 44
70 24
71 70
72 1
73 72
74 36

List of values

[1, 1, 2, 0, 4, 2, 6, 1, 1, 4, 10, 0, 12, 6, 8, 2, 16, 1, 18, 0, 12, 10, 22, 2, 3, 12, 0, 0, 28, 8, 30, 3, 20, 16, 24, 0, 36, 18, 24, 4, 40, 12, 42, 0, 4, 22, 46, 4, 5, 3, 32, 0, 52, 0, 40, 6, 36, 28, 58, 0, 60, 30, 6, 4, 48, 20, 66, 0, 44, 24, 70, 1, 72, 36]

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