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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.

A008611 a(n) = a(n-3) + 1, with a(0)=a(2)=1, a(1)=0.

Table of values

n a(n)
0 1
1 0
2 1
3 2
4 1
5 2
6 3
7 2
8 3
9 4
10 3
11 4
12 5
13 4
14 5
15 6
16 5
17 6
18 7
19 6
20 7
21 8
22 7
23 8
24 9
25 8
26 9
27 10
28 9
29 10
30 11
31 10
32 11
33 12
34 11
35 12
36 13
37 12
38 13
39 14
40 13
41 14
42 15
43 14
44 15
45 16
46 15
47 16
48 17
49 16
50 17
51 18
52 17
53 18
54 19
55 18
56 19
57 20
58 19
59 20
60 21
61 20
62 21
63 22
64 21
65 22
66 23
67 22
68 23
69 24
70 23
71 24
72 25
73 24
74 25
75 26
76 25
77 26
78 27
79 26
80 27
81 28

List of values

[1, 0, 1, 2, 1, 2, 3, 2, 3, 4, 3, 4, 5, 4, 5, 6, 5, 6, 7, 6, 7, 8, 7, 8, 9, 8, 9, 10, 9, 10, 11, 10, 11, 12, 11, 12, 13, 12, 13, 14, 13, 14, 15, 14, 15, 16, 15, 16, 17, 16, 17, 18, 17, 18, 19, 18, 19, 20, 19, 20, 21, 20, 21, 22, 21, 22, 23, 22, 23, 24, 23, 24, 25, 24, 25, 26, 25, 26, 27, 26, 27, 28]

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