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.

A291330 The arithmetic function v_4(n,1).

Table of values

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

List of values

[0, 2, 0, 4, 4, 6, 4, 8, 8, 10, 8, 12, 12, 14, 12, 16, 16, 18, 16, 20, 20, 22, 20, 24, 24, 26, 24, 28, 28, 30, 28, 32, 32, 34, 32, 36, 36, 38, 36, 40, 40, 42, 40, 44, 44, 46, 44, 48, 48, 50, 48, 52, 52, 54, 52, 56, 56, 58, 56, 60, 60, 62, 60, 64, 64, 66, 64, 68, 68]

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

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