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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.

A143089 a(n) = a(n - a(n-1)) + a(floor(2*n/3)).

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 3
5 5
6 4
7 6
8 7
9 6
10 7
11 9
12 10
13 10
14 9
15 11
16 12
17 14
18 13
19 14
20 14
21 15
22 15
23 18
24 16
25 18
26 21
27 17
28 22
29 20
30 21
31 21
32 24
33 21
34 25
35 25
36 25
37 26
38 28
39 30
40 28
41 27
42 33
43 29
44 31
45 30
46 33
47 30
48 37
49 34
50 33
51 38
52 34
53 39
54 36
55 39
56 40
57 42
58 40
59 44
60 40
61 43
62 41
63 48
64 45
65 43
66 49
67 44
68 46
69 51
70 47
71 46
72 58
73 48

List of values

[1, 1, 2, 3, 3, 5, 4, 6, 7, 6, 7, 9, 10, 10, 9, 11, 12, 14, 13, 14, 14, 15, 15, 18, 16, 18, 21, 17, 22, 20, 21, 21, 24, 21, 25, 25, 25, 26, 28, 30, 28, 27, 33, 29, 31, 30, 33, 30, 37, 34, 33, 38, 34, 39, 36, 39, 40, 42, 40, 44, 40, 43, 41, 48, 45, 43, 49, 44, 46, 51, 47, 46, 58, 48]

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