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.

A063507 Least k such that k - phi(k) = n, or 0 if no such k exists.

Table of values

n a(n)
1 2
2 4
3 9
4 6
5 25
6 10
7 15
8 12
9 21
10 0
11 35
12 18
13 33
14 26
15 39
16 24
17 65
18 34
19 51
20 38
21 45
22 30
23 95
24 36
25 69
26 0
27 63
28 52
29 161
30 42
31 87
32 48
33 93
34 0
35 75
36 54
37 217
38 74
39 99
40 76
41 185
42 82
43 123
44 60
45 117
46 66
47 215
48 72
49 141
50 0
51 235
52 0
53 329
54 78
55 159
56 98
57 105
58 0
59 371
60 84
61 177
62 122
63 135
64 96
65 305
66 90
67 427

List of values

[2, 4, 9, 6, 25, 10, 15, 12, 21, 0, 35, 18, 33, 26, 39, 24, 65, 34, 51, 38, 45, 30, 95, 36, 69, 0, 63, 52, 161, 42, 87, 48, 93, 0, 75, 54, 217, 74, 99, 76, 185, 82, 123, 60, 117, 66, 215, 72, 141, 0, 235, 0, 329, 78, 159, 98, 105, 0, 371, 84, 177, 122, 135, 96, 305, 90, 427]

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

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