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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.

A283893 Relative of Hofstadter Q-sequence: a(1) = 3, a(2) = 2; thereafter a(n) = a(n-a(n-1)) + a(n-a(n-2)).

Table of values

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

List of values

[3, 2, 3, 5, 2, 8, 2, 8, 5, 4, 10, 10, 6, 13, 7, 8, 9, 9, 8, 20, 9, 8, 20, 13, 12, 19, 15, 11, 22, 16, 12, 28, 11, 28, 15, 17, 28, 13, 29, 25, 18, 22, 21, 28, 22, 22, 24, 32, 21, 31, 36, 17, 26, 39, 30, 28, 37, 25, 36, 28, 23, 57, 33, 14, 64, 19, 35, 32, 56, 26, 29, 43, 44, 28, 36]

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