cp's OEIS Frontend

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.

A381805 Smallest composite squarefree number that is coprime to n.

Table of values

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

List of values

[6, 15, 10, 15, 6, 35, 6, 15, 10, 21, 6, 35, 6, 15, 14, 15, 6, 35, 6, 21, 10, 15, 6, 35, 6, 15, 10, 15, 6, 77, 6, 15, 10, 15, 6, 35, 6, 15, 10, 21, 6, 55, 6, 15, 14, 15, 6, 35, 6, 21, 10, 15, 6, 35, 6, 15, 10, 15, 6, 77, 6, 15, 10, 15, 6, 35, 6, 15, 10, 33, 6, 35]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.