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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.

A215673 a(1) = 1, a(2n) = a(n)+1, a(2n+1) = a(n)+a(n+1)+1.

Table of values

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

List of values

[1, 2, 4, 3, 7, 5, 8, 4, 11, 8, 13, 6, 14, 9, 13, 5, 16, 12, 20, 9, 22, 14, 20, 7, 21, 15, 24, 10, 23, 14, 19, 6, 22, 17, 29, 13, 33, 21, 30, 10, 32, 23, 37, 15, 35, 21, 28, 8, 29, 22, 37, 16, 40, 25, 35, 11, 34, 24, 38, 15, 34, 20, 26, 7, 29, 23, 40, 18, 47, 30]

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