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.

A007015 a(n) = smallest k such that phi(n+k) = phi(k).

Table of values

n a(n)
1 1
2 4
3 3
4 8
5 5
6 24
7 5
8 13
9 9
10 20
11 7
12 48
13 13
14 16
15 13
16 26
17 17
18 52
19 19
20 37
21 21
22 44
23 13
24 96
25 25
26 34
27 27
28 32
29 13
30 124
31 17
32 52
33 33
34 41
35 19
36 104
37 35
38 52
39 37
40 65
41 25
42 123
43 17
44 73
45 39
46 92
47 41
48 183
49 35
50 76
51 39
52 68
53 53
54 156
55 35
56 64
57 57
58 116
59 41
60 248
61 61
62 73
63 61
64 104
65 65
66 144
67 67
68 82

List of values

[1, 4, 3, 8, 5, 24, 5, 13, 9, 20, 7, 48, 13, 16, 13, 26, 17, 52, 19, 37, 21, 44, 13, 96, 25, 34, 27, 32, 13, 124, 17, 52, 33, 41, 19, 104, 35, 52, 37, 65, 25, 123, 17, 73, 39, 92, 41, 183, 35, 76, 39, 68, 53, 156, 35, 64, 57, 116, 41, 248, 61, 73, 61, 104, 65, 144, 67, 82]

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

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