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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.

A002618 a(n) = n*phi(n).

Table of values

n a(n)
1 1
2 2
3 6
4 8
5 20
6 12
7 42
8 32
9 54
10 40
11 110
12 48
13 156
14 84
15 120
16 128
17 272
18 108
19 342
20 160
21 252
22 220
23 506
24 192
25 500
26 312
27 486
28 336
29 812
30 240
31 930
32 512
33 660
34 544
35 840
36 432
37 1332
38 684
39 936
40 640
41 1640
42 504
43 1806
44 880
45 1080
46 1012
47 2162
48 768
49 2058
50 1000

List of values

[1, 2, 6, 8, 20, 12, 42, 32, 54, 40, 110, 48, 156, 84, 120, 128, 272, 108, 342, 160, 252, 220, 506, 192, 500, 312, 486, 336, 812, 240, 930, 512, 660, 544, 840, 432, 1332, 684, 936, 640, 1640, 504, 1806, 880, 1080, 1012, 2162, 768, 2058, 1000]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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