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.

A011773 Variant of Carmichael's lambda function: a(p1^e1*...*pN^eN) = lcm((p1-1)*p1^(e1-1), ..., (pN-1)*pN^(eN-1)).

Table of values

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

List of values

[1, 1, 2, 2, 4, 2, 6, 4, 6, 4, 10, 2, 12, 6, 4, 8, 16, 6, 18, 4, 6, 10, 22, 4, 20, 12, 18, 6, 28, 4, 30, 16, 10, 16, 12, 6, 36, 18, 12, 4, 40, 6, 42, 10, 12, 22, 46, 8, 42, 20, 16, 12, 52, 18, 20, 12, 18, 28, 58, 4, 60, 30, 6, 32, 12, 10, 66, 16, 22, 12]