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.

A128177 A128174 * A004736 as infinite lower triangular matrices.

Table of values

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

List of values

[1, 2, 1, 4, 2, 1, 6, 4, 2, 1, 9, 6, 4, 2, 1, 12, 9, 6, 4, 2, 1, 16, 12, 9, 6, 4, 2, 1, 20, 16, 12, 9, 6, 4, 2, 1, 25, 20, 16, 12, 9, 6, 4, 2, 1, 30, 25, 20, 16, 12, 9, 6, 4, 2, 1, 36, 30, 25, 20, 16, 12, 9, 6, 4, 2, 1, 42, 36, 30, 25, 20, 16, 12, 9, 6, 4, 2, 1]