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.

A218466 Least k > n for which phi(k - n) = phi(k + n) or 0 if no such k exists.

Table of values

n a(n)
1 5
2 10
3 27
4 17
5 25
6 54
7 23
8 34
9 61
10 47
11 55
12 108
13 47
14 46
15 139
16 68
17 58
18 122
19 71
20 85
21 144
22 95
23 115
24 207
25 101
26 94
27 183
28 92
29 145
30 278
31 104
32 136
33 177
34 116
35 175
36 244
37 161
38 142
39 306
40 149
41 184
42 283
43 191
44 187
45 410
46 230
47 235
48 267
49 146
50 202
51 299
52 188
53 157
54 366
55 275
56 184

List of values

[5, 10, 27, 17, 25, 54, 23, 34, 61, 47, 55, 108, 47, 46, 139, 68, 58, 122, 71, 85, 144, 95, 115, 207, 101, 94, 183, 92, 145, 278, 104, 136, 177, 116, 175, 244, 161, 142, 306, 149, 184, 283, 191, 187, 410, 230, 235, 267, 146, 202, 299, 188, 157, 366, 275, 184]