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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.

A366779 a(n) = lambda(lambda(lambda(n))), where lambda(n) is the Carmichael lambda function (A002322).

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 2
12 1
13 1
14 1
15 1
16 1
17 2
18 1
19 2
20 1
21 1
22 2
23 4
24 1
25 2
26 1
27 2
28 1
29 2
30 1
31 2
32 1
33 2
34 2
35 1
36 1
37 2
38 2
39 1
40 1
41 2
42 1
43 2
44 2
45 1
46 4
47 10
48 1
49 2
50 2
51 2
52 1
53 2
54 2
55 2
56 1
57 2
58 2
59 6
60 1
61 2
62 2
63 1
64 2
65 1
66 2
67 4
68 2
69 4
70 1
71 2
72 1
73 2
74 2
75 2
76 2
77 2
78 1
79 2
80 1
81 6
82 2
83 4
84 1
85 2
86 2
87 2

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 2, 4, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 4, 10, 1, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 6, 1, 2, 2, 1, 2, 1, 2, 4, 2, 4, 1, 2, 1, 2, 2, 2, 2, 2, 1, 2, 1, 6, 2, 4, 1, 2, 2, 2]

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