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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.

A095769 a(1)=a(2)=1; a(n)=a(a(a(a(n-1))))+a(n-a(a(a(n-1)))).

Table of values

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

List of values

[1, 1, 2, 3, 4, 4, 5, 6, 6, 7, 8, 9, 9, 10, 11, 11, 12, 13, 13, 14, 15, 16, 17, 17, 17, 18, 19, 19, 20, 21, 22, 23, 24, 25, 26, 26, 26, 26, 27, 28, 28, 29, 30, 31, 31, 32, 33, 34, 35, 36, 37, 38, 39, 39, 39, 39, 39, 40, 41, 41, 42, 43, 44, 45, 46, 47, 47, 48, 48, 48, 49, 50, 51, 52]

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

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