cp's OEIS Frontend

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.

A291270 The arithmetic function v_4(n,3).

Table of values

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

List of values

[0, 1, 0, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 6, 4, 6, 6, 6, 8, 7, 8, 8, 8, 10, 8, 9, 8, 10, 12, 10, 10, 12, 12, 14, 12, 12, 12, 13, 16, 14, 14, 14, 16, 18, 16, 16, 16, 16, 20, 18, 16, 18, 18, 22, 18, 19, 20, 20, 24, 20, 20, 21, 20, 26, 24, 22, 24, 24, 28]