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.

A005374 Hofstadter H-sequence: a(n) = n - a(a(a(n-1))).

Table of values

n a(n)
0 0
1 1
2 1
3 2
4 3
5 4
6 4
7 5
8 5
9 6
10 7
11 7
12 8
13 9
14 10
15 10
16 11
17 12
18 13
19 13
20 14
21 14
22 15
23 16
24 17
25 17
26 18
27 18
28 19
29 20
30 20
31 21
32 22
33 23
34 23
35 24
36 24
37 25
38 26
39 26
40 27
41 28
42 29
43 29
44 30
45 31
46 32
47 32
48 33
49 33
50 34
51 35
52 35
53 36
54 37
55 38
56 38
57 39
58 40
59 41
60 41
61 42
62 42
63 43
64 44
65 45
66 45
67 46
68 46
69 47
70 48
71 48
72 49
73 50

List of values

[0, 1, 1, 2, 3, 4, 4, 5, 5, 6, 7, 7, 8, 9, 10, 10, 11, 12, 13, 13, 14, 14, 15, 16, 17, 17, 18, 18, 19, 20, 20, 21, 22, 23, 23, 24, 24, 25, 26, 26, 27, 28, 29, 29, 30, 31, 32, 32, 33, 33, 34, 35, 35, 36, 37, 38, 38, 39, 40, 41, 41, 42, 42, 43, 44, 45, 45, 46, 46, 47, 48, 48, 49, 50]

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

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