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.

A066813 a(n) = lcm(phi(n), phi(n+1)).

Table of values

n a(n)
1 1
2 2
3 2
4 4
5 4
6 6
7 12
8 12
9 12
10 20
11 20
12 12
13 12
14 24
15 8
16 16
17 48
18 18
19 72
20 24
21 60
22 110
23 88
24 40
25 60
26 36
27 36
28 84
29 56
30 120
31 240
32 80
33 80
34 48
35 24
36 36
37 36
38 72
39 48
40 80
41 120
42 84
43 420
44 120
45 264
46 506
47 368
48 336
49 420
50 160
51 96
52 312
53 468
54 360
55 120
56 72
57 252
58 812
59 464
60 240
61 60
62 180
63 288
64 96

List of values

[1, 2, 2, 4, 4, 6, 12, 12, 12, 20, 20, 12, 12, 24, 8, 16, 48, 18, 72, 24, 60, 110, 88, 40, 60, 36, 36, 84, 56, 120, 240, 80, 80, 48, 24, 36, 36, 72, 48, 80, 120, 84, 420, 120, 264, 506, 368, 336, 420, 160, 96, 312, 468, 360, 120, 72, 252, 812, 464, 240, 60, 180, 288, 96]