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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.

A257846 a(n) = floor(n/6) * (n mod 6).

Table of values

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

List of values

[0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 0, 2, 4, 6, 8, 10, 0, 3, 6, 9, 12, 15, 0, 4, 8, 12, 16, 20, 0, 5, 10, 15, 20, 25, 0, 6, 12, 18, 24, 30, 0, 7, 14, 21, 28, 35, 0, 8, 16, 24, 32, 40, 0, 9, 18, 27, 36, 45, 0, 10, 20, 30, 40, 50, 0, 11, 22, 33, 44, 55, 0, 12, 24]

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