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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.

A099741 a(1) = a(2) = 1; a(n) = a([n/2])+a([n/3]) (n >= 3).

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 2
6 3
7 3
8 3
9 4
10 4
11 4
12 5
13 5
14 5
15 5
16 5
17 5
18 7
19 7
20 7
21 7
22 7
23 7
24 8
25 8
26 8
27 9
28 9
29 9
30 9
31 9
32 9
33 9
34 9
35 9
36 12
37 12
38 12
39 12
40 12
41 12
42 12
43 12
44 12
45 12
46 12
47 12
48 13
49 13
50 13
51 13
52 13
53 13
54 16
55 16
56 16
57 16
58 16
59 16
60 16
61 16
62 16
63 16
64 16
65 16
66 16
67 16
68 16
69 16
70 16
71 16
72 20
73 20
74 20
75 20
76 20
77 20
78 20
79 20
80 20
81 21

List of values

[1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 5, 5, 7, 7, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 21]

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