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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.

A215674 a(1) = 1, a(n) = 2 if 1 a(3n) = a(n)+1, a(3n+1) = a(3n+2) = a(n)+a(n+1)+1 otherwise.

Table of values

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

List of values

[1, 2, 2, 4, 4, 3, 5, 5, 3, 7, 7, 5, 9, 9, 5, 8, 8, 4, 9, 9, 6, 11, 11, 6, 9, 9, 4, 11, 11, 8, 15, 15, 8, 13, 13, 6, 15, 15, 10, 19, 19, 10, 15, 15, 6, 14, 14, 9, 17, 17, 9, 13, 13, 5, 14, 14, 10, 19, 19, 10, 16, 16, 7, 18, 18, 12, 23, 23, 12, 18, 18, 7, 16]

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