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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.

A163491 A fractal sequence (if we delete the first occurrence of n we get the sequence itself).

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 1
6 2
7 3
8 1
9 2
10 4
11 3
12 1
13 5
14 2
15 4
16 6
17 3
18 1
19 7
20 5
21 2
22 8
23 4
24 6
25 9
26 3
27 1
28 10
29 7
30 5
31 11
32 2
33 8
34 12
35 4
36 6
37 13
38 9
39 3
40 14
41 1
42 10
43 15
44 7
45 5
46 16
47 11
48 2
49 17
50 8
51 12
52 18
53 4
54 6
55 19
56 13
57 9
58 20
59 3
60 14
61 21
62 1
63 10
64 22
65 15
66 7
67 23
68 5
69 16
70 24
71 11
72 2
73 25
74 17
75 8
76 26
77 12

List of values

[1, 1, 1, 2, 1, 2, 3, 1, 2, 4, 3, 1, 5, 2, 4, 6, 3, 1, 7, 5, 2, 8, 4, 6, 9, 3, 1, 10, 7, 5, 11, 2, 8, 12, 4, 6, 13, 9, 3, 14, 1, 10, 15, 7, 5, 16, 11, 2, 17, 8, 12, 18, 4, 6, 19, 13, 9, 20, 3, 14, 21, 1, 10, 22, 15, 7, 23, 5, 16, 24, 11, 2, 25, 17, 8, 26, 12]

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