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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.

A057356 a(n) = floor(2*n/7).

Table of values

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

List of values

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

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