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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.

A060605 a(n) = sum of lengths of the iteration sequences of Euler totient function from 1 to n.

Table of values

n a(n)
1 1
2 3
3 6
4 9
5 13
6 16
7 20
8 24
9 28
10 32
11 37
12 41
13 46
14 50
15 55
16 60
17 66
18 70
19 75
20 80
21 85
22 90
23 96
24 101
25 107
26 112
27 117
28 122
29 128
30 133
31 139
32 145
33 151
34 157
35 163
36 168
37 174
38 179
39 185
40 191
41 198
42 203
43 209
44 215
45 221
46 227
47 234
48 240
49 246
50 252
51 259
52 265
53 272
54 277
55 284
56 290
57 296
58 302

List of values

[1, 3, 6, 9, 13, 16, 20, 24, 28, 32, 37, 41, 46, 50, 55, 60, 66, 70, 75, 80, 85, 90, 96, 101, 107, 112, 117, 122, 128, 133, 139, 145, 151, 157, 163, 168, 174, 179, 185, 191, 198, 203, 209, 215, 221, 227, 234, 240, 246, 252, 259, 265, 272, 277, 284, 290, 296, 302]

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

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