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.

A025523 a(n) = 1 + Sum_{ k < n and k | n} a(k).

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 6
6 9
7 10
8 14
9 16
10 19
11 20
12 28
13 29
14 32
15 35
16 43
17 44
18 52
19 53
20 61
21 64
22 67
23 68
24 88
25 90
26 93
27 97
28 105
29 106
30 119
31 120
32 136
33 139
34 142
35 145
36 171
37 172
38 175
39 178
40 198
41 199
42 212
43 213
44 221
45 229
46 232
47 233
48 281
49 283
50 291
51 294
52 302
53 303
54 323
55 326
56 346
57 349
58 352
59 353
60 397
61 398
62 401

List of values

[1, 2, 3, 5, 6, 9, 10, 14, 16, 19, 20, 28, 29, 32, 35, 43, 44, 52, 53, 61, 64, 67, 68, 88, 90, 93, 97, 105, 106, 119, 120, 136, 139, 142, 145, 171, 172, 175, 178, 198, 199, 212, 213, 221, 229, 232, 233, 281, 283, 291, 294, 302, 303, 323, 326, 346, 349, 352, 353, 397, 398, 401]