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.

A349693 Dirichlet convolution of the ruler function (A001511) with itself.

Table of values

n a(n)
1 1
2 4
3 2
4 10
5 2
6 8
7 2
8 20
9 3
10 8
11 2
12 20
13 2
14 8
15 4
16 35
17 2
18 12
19 2
20 20
21 4
22 8
23 2
24 40
25 3
26 8
27 4
28 20
29 2
30 16
31 2
32 56
33 4
34 8
35 4
36 30
37 2
38 8
39 4
40 40
41 2
42 16
43 2
44 20
45 6
46 8
47 2
48 70
49 3
50 12
51 4
52 20
53 2
54 16
55 4
56 40
57 4
58 8
59 2
60 40
61 2
62 8
63 6
64 84
65 4
66 16
67 2
68 20
69 4
70 16
71 2
72 60
73 2
74 8
75 6
76 20
77 4
78 16
79 2
80 70

List of values

[1, 4, 2, 10, 2, 8, 2, 20, 3, 8, 2, 20, 2, 8, 4, 35, 2, 12, 2, 20, 4, 8, 2, 40, 3, 8, 4, 20, 2, 16, 2, 56, 4, 8, 4, 30, 2, 8, 4, 40, 2, 16, 2, 20, 6, 8, 2, 70, 3, 12, 4, 20, 2, 16, 4, 40, 4, 8, 2, 40, 2, 8, 6, 84, 4, 16, 2, 20, 4, 16, 2, 60, 2, 8, 6, 20, 4, 16, 2, 70]

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

Content is available under The OEIS End-User License Agreement.