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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.

A056610 Quotient: squarefree kernel of lcm(1,..,n) (or of n!) divided by kernel of central binomial coefficient.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 3
6 3
7 6
8 3
9 5
10 5
11 5
12 5
13 35
14 35
15 14
16 7
17 21
18 21
19 105
20 105
21 55
22 55
23 165
24 165
25 429
26 429
27 1001
28 1001
29 1001
30 1001
31 2002
32 1001
33 1547
34 1547
35 221
36 221
37 4199
38 4199
39 323
40 323
41 2261
42 2261
43 24871
44 24871
45 572033
46 572033
47 572033
48 572033
49 408595
50 408595

List of values

[1, 1, 2, 1, 3, 3, 6, 3, 5, 5, 5, 5, 35, 35, 14, 7, 21, 21, 105, 105, 55, 55, 165, 165, 429, 429, 1001, 1001, 1001, 1001, 2002, 1001, 1547, 1547, 221, 221, 4199, 4199, 323, 323, 2261, 2261, 24871, 24871, 572033, 572033, 572033, 572033, 408595, 408595]