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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.

A283673 a(n) = lcm(q(n - q(n+1) + 2), q(n - q(n) + 2)) where q(n) = A005185(n).

Table of values

n a(n)
1 1
2 2
3 2
4 2
5 6
6 6
7 3
8 3
9 3
10 4
11 15
12 4
13 5
14 20
15 5
16 30
17 30
18 6
19 6
20 6
21 6
22 8
23 24
24 24
25 8
26 8
27 8
28 8
29 10
30 72
31 72
32 10
33 110
34 90
35 99
36 11
37 110
38 11
39 132
40 132
41 12
42 12
43 12
44 12
45 12
46 16
47 70
48 154
49 112
50 48
51 84
52 112
53 112
54 14
55 16
56 112
57 16
58 16
59 16
60 16
61 20
62 272
63 238
64 357
65 304
66 272
67 380
68 20
69 340
70 357
71 399

List of values

[1, 2, 2, 2, 6, 6, 3, 3, 3, 4, 15, 4, 5, 20, 5, 30, 30, 6, 6, 6, 6, 8, 24, 24, 8, 8, 8, 8, 10, 72, 72, 10, 110, 90, 99, 11, 110, 11, 132, 132, 12, 12, 12, 12, 12, 16, 70, 154, 112, 48, 84, 112, 112, 14, 16, 112, 16, 16, 16, 16, 20, 272, 238, 357, 304, 272, 380, 20, 340, 357, 399]

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