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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.

A061984 a(n) = 1 + a([n/2]) + a([n/3]) with a(0) = 0.

Table of values

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

List of values

[0, 1, 2, 3, 4, 4, 6, 6, 7, 8, 8, 8, 11, 11, 11, 11, 12, 12, 15, 15, 15, 15, 15, 15, 19, 19, 19, 20, 20, 20, 20, 20, 21, 21, 21, 21, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, 37, 37, 37, 37, 37, 47]

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