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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.

A215676 a(1) = 1, a(n) = 2 if 1 a(3n+1) = a(n)+1, a(3n+2) = a(3n+3) = a(n)+a(n+1)+1 otherwise.

Table of values

n a(n)
1 1
2 2
3 2
4 2
5 4
6 4
7 3
8 5
9 5
10 3
11 5
12 5
13 3
14 7
15 7
16 5
17 9
18 9
19 5
20 8
21 8
22 4
23 9
24 9
25 6
26 11
27 11
28 6
29 9
30 9
31 4
32 9
33 9
34 6
35 11
36 11
37 6
38 9
39 9
40 4
41 11
42 11
43 8
44 15
45 15
46 8
47 13
48 13
49 6
50 15
51 15
52 10
53 19
54 19
55 10
56 15
57 15
58 6
59 14
60 14
61 9
62 17
63 17
64 9
65 13
66 13
67 5
68 14
69 14
70 10
71 19
72 19
73 10
74 16
75 16
76 7

List of values

[1, 2, 2, 2, 4, 4, 3, 5, 5, 3, 5, 5, 3, 7, 7, 5, 9, 9, 5, 8, 8, 4, 9, 9, 6, 11, 11, 6, 9, 9, 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]

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