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.

A231821 a(n) = mu(n) + 3, where mu is the Mobius function (A008683).

Table of values

n a(n)
1 4
2 2
3 2
4 3
5 2
6 4
7 2
8 3
9 3
10 4
11 2
12 3
13 2
14 4
15 4
16 3
17 2
18 3
19 2
20 3
21 4
22 4
23 2
24 3
25 3
26 4
27 3
28 3
29 2
30 2
31 2
32 3
33 4
34 4
35 4
36 3
37 2
38 4
39 4
40 3
41 2
42 2
43 2
44 3
45 3
46 4
47 2
48 3
49 3
50 3
51 4
52 3
53 2
54 3
55 4
56 3
57 4
58 4
59 2
60 3
61 2
62 4
63 3
64 3
65 4
66 2
67 2
68 3
69 4
70 2
71 2
72 3
73 2
74 4
75 3
76 3
77 4
78 2
79 2
80 3
81 3
82 4
83 2
84 3
85 4
86 4

List of values

[4, 2, 2, 3, 2, 4, 2, 3, 3, 4, 2, 3, 2, 4, 4, 3, 2, 3, 2, 3, 4, 4, 2, 3, 3, 4, 3, 3, 2, 2, 2, 3, 4, 4, 4, 3, 2, 4, 4, 3, 2, 2, 2, 3, 3, 4, 2, 3, 3, 3, 4, 3, 2, 3, 4, 3, 4, 4, 2, 3, 2, 4, 3, 3, 4, 2, 2, 3, 4, 2, 2, 3, 2, 4, 3, 3, 4, 2, 2, 3, 3, 4, 2, 3, 4, 4]