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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.

A350085 a(n) is the smallest totient number k > 1 such that A007617(n)*k is a nontotient number, or 0 if no such number exists.

Table of values

n a(n)
1 30
2 10
3 2
4 10
5 22
6 2
7 22
8 6
9 2
10 2
11 54
12 10
13 2
14 22
15 22
16 6
17 2
18 18
19 2
20 10
21 2
22 2
23 6
24 6
25 2
26 2
27 2
28 2
29 22
30 10
31 6
32 10
33 2
34 2
35 2
36 2
37 18
38 6
39 2
40 10
41 6
42 2
43 2
44 10
45 6
46 2
47 2
48 2
49 30
50 10
51 2
52 6
53 2
54 6
55 106
56 2
57 2
58 2
59 10
60 2
61 22
62 6
63 2
64 2
65 18
66 2
67 2
68 6
69 6
70 46
71 2
72 2
73 2
74 6
75 2
76 2
77 2
78 2
79 10
80 2

List of values

[30, 10, 2, 10, 22, 2, 22, 6, 2, 2, 54, 10, 2, 22, 22, 6, 2, 18, 2, 10, 2, 2, 6, 6, 2, 2, 2, 2, 22, 10, 6, 10, 2, 2, 2, 2, 18, 6, 2, 10, 6, 2, 2, 10, 6, 2, 2, 2, 30, 10, 2, 6, 2, 6, 106, 2, 2, 2, 10, 2, 22, 6, 2, 2, 18, 2, 2, 6, 6, 46, 2, 2, 2, 6, 2, 2, 2, 2, 10, 2]

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