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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.

A332801 a(n) is the number of even results of n mod k, for 1 < k < n.

Table of values

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

List of values

[0, 0, 0, 1, 1, 3, 1, 4, 3, 5, 3, 7, 3, 9, 5, 8, 6, 11, 5, 13, 7, 13, 7, 15, 8, 16, 10, 16, 10, 20, 8, 21, 11, 21, 13, 22, 12, 24, 14, 24, 14, 28, 12, 30, 16, 28, 16, 30, 17, 32, 18, 32, 18, 36, 18, 36, 20, 36, 20, 40, 18, 42, 22, 39, 25, 41, 23, 43, 25, 45, 23, 48, 22, 50]

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