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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.

A350515 a(n) = (n-1)/3 if n mod 3 = 1; a(n) = n/2 if n mod 6 = 0 or n mod 6 = 2; a(n) = (3n+1)/2 if n mod 6 = 3 or n mod 6 = 5.

Table of values

n a(n)
0 0
1 0
2 1
3 5
4 1
5 8
6 3
7 2
8 4
9 14
10 3
11 17
12 6
13 4
14 7
15 23
16 5
17 26
18 9
19 6
20 10
21 32
22 7
23 35
24 12
25 8
26 13
27 41
28 9
29 44
30 15
31 10
32 16
33 50
34 11
35 53
36 18
37 12
38 19
39 59
40 13
41 62
42 21
43 14
44 22
45 68
46 15
47 71
48 24
49 16
50 25
51 77
52 17
53 80
54 27
55 18
56 28
57 86
58 19
59 89
60 30
61 20
62 31
63 95
64 21
65 98
66 33
67 22
68 34
69 104

List of values

[0, 0, 1, 5, 1, 8, 3, 2, 4, 14, 3, 17, 6, 4, 7, 23, 5, 26, 9, 6, 10, 32, 7, 35, 12, 8, 13, 41, 9, 44, 15, 10, 16, 50, 11, 53, 18, 12, 19, 59, 13, 62, 21, 14, 22, 68, 15, 71, 24, 16, 25, 77, 17, 80, 27, 18, 28, 86, 19, 89, 30, 20, 31, 95, 21, 98, 33, 22, 34, 104]

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